The following table contains the organisations that have been part of Google Summer of Code at least once from 2009 to 2024 - number of times they have participated, technologies they use, topics they work on, GSoC category, and the latest GSoC year they participated in.
More information and year-wise data available at thealphadollar/GSoCOrgFrequency.
| Name | Count | Technologies | Topics | Category | Latest Year |
|---|---|---|---|---|---|
| 3DTK | 1 | c/c++, cmake, opencv, ros, boost | 3d, point clouds, slam, robotics, mapping | Science and Medicine | 2018 |
| 52° North GmbH | 2 | python, javascript, java, web services, javascript, react, ogc standards, android, java | geoinformation systems, floating car data, trajectory analytics, open standards, ogc standards, citizen science, web services, spatial information infrastructures | Science and Medicine | 2021 |
| 52°North Initiative for Geospatial Open Source Software GmbH | 8 | r, web, spring, javascript, bigdata, webservices, android, ogcstandards, java | spatial information, spatial data infrastructures, web-based geoprocessing, floating car data, geoinformatics, spatial data, sensorweb, sensor web, remote sensing, geoprocessing, web processing, earth observation, ogc, geostatistics | Science and Medicine | 2019 |
| 52°North Spatial Information Research GmbH | 3 | android, web services, java, javascript, ogc standards | open standards, data analytics, spatial information infrastructures, citizen science, Geoinformation | 2024 | |
| AbiWord | 5 | 2013 | |||
| AboutCode | 5 | django, python, javascript, javascript, Django+PostgreSQL, c/c++, shellscript, C/Rust/Go, postgres, staticanalysis | code scan and matching, scanning, software composition analysis, code analysis and spdx, dependencies, vulnerabilities, software packages, package and dependencies licensing and origin, SBOM, SoftwareCompositionAnalysis, License, free and open source software license and origin, package vulnerabilities and security | Programming Languages and Development Tools | 2024 |
| AboutCode.org | 2 | python, postgresql, search, javascript, c/c++, rust, automaton, nlp | machine learning, software analysis, copyright, dependencies, package managers, license-scan, oss licensing, application security, license compliance | Programming Languages and Development Tools | 2020 |
| Academy Software Foundation | 1 | c, python, opengl, c++, rust | graphics, media, animation, Visual Effects, Film | 2022 | |
| Academy Software Foundation (ASWF) | 1 | c/c++, python | 2d/3d graphics, cloud computing, file formats, color management, filmmaking | Graphics / Video / Audio / Virtual Reality | 2020 |
| Accord Project | 3 | compiler, coq, python, javascript, artificial intelligence, javascript, react, ocaml, coq, react, compiler, ocaml, rust | smart contracts, blockchain, data modeling, legal, legal, compilers, ai, contract management, document assembly, blockchain, natural language processing, ai, smart contracts, legal technology | Programming Languages and Development Tools | 2024 |
| AerospaceResearch.Net | 7 | sqlite, python, boinc, raspberry pi, raspberrypi, vhdl, sqlite, c/c++, machine learning, c++, sdr, java | signal processing, software defined radio, distributed computing, simulations, software defined radio, simulations, space applications, cubesats, cubesats | Science and Medicine | 2021 |
| afl++ | 1 | fuzzing, c/c++, qemu, llvm, sanitizers | bug finding, software testing, fuzzing | Security | 2020 |
| AFLplusplus | 4 | llvm, llvm, qemu, fuzzing, c/c++, rust, instrumentation | fuzzing, ci, secure development, instrumentation | 2024 | |
| Africa Soil Information Service | 1 | 2015 | |||
| aimacode | 4 | python, machinelearning, ai, python3, javascript, jupyter, artificialintelligence, java | machine learning, education, open education, artificial intelligence, education | Programming Languages and Development Tools | 2019 |
| Alaska | 1 | python, mysql, java, matlab, dicom | deep learning, neuroscience, radiology, heathcare, Polar Science | 2024 | |
| Amahi | 5 | streaming, rubyonrails, javascript, containers, android, restfulapi, golang, ios, swift | streaming, web apps, mobile streaming, web servers, storage server, webapps, networking, backups, networking, media server, front-end, web apps, operating systems, home servers, mobile-apps, storage | Operating Systems | 2020 |
| Android Graphics Tools Team | 3 | opengl, spir-v, vulkan, webgpu, python3, c/c++, spir-v, c++, opengl, java | profiling, debugging, fuzzing, graphics, bug finding, developer tools, testing, developer tools, 2d/3d graphics | Programming Languages and Development Tools | 2021 |
| AnitaB.org Open Source | 1 | ios, android, python, javascript | mobile, web, mobile programming, web programming | Other | 2020 |
| AnkiDroid | 3 | android, mobile, gradle, java, javascript, rust, android, kotlin | android, mobile, Flashcards, user generated content, flashcard, education | 2024 | |
| Ankur India | 2 | 2013 | |||
| AOSSIE | 5 | scala, kotlin, android, python, javascript, javascript, ios, Blockchain, machine learning, flutter, swift | machine learning, social science, environment, mobile, electronic voting, web, backend, machine learning, natural language processing, social science, natural language processing, electronic voting | End User Applications | 2024 |
| AOSSIE - Australian Open Source Software Innovation and Education | 3 | automatedreasoning, android/ios, browserextension, xcode, javascript, isabelleproofassistant, javascript/html5/css3, ios, android, javascript/html/css, scala | machine learning, environment, philosophy, natural language processing, electronic voting, logic | End User Applications | 2019 |
| AOSSIE - The Australian National University’s Open-Source Software Innovation and Education | 1 | scala, lisp, llvm, python, postgresql | logic, live programming, data analysis, health, privacy | Science and Medicine | 2016 |
| Apache Software Foundation | 12 | python, ruby, java, erlang, javascript, c, couchdb, c++, java | libraries, web, other, big data, ddd, libraries, cloud, dsl, other, cloud, database | Other | 2024 |
| Apertium | 12 | xml, python, javascript, bash, fsts, c++, bash, c++, xml, nlp | less-resourced languages, less-resources languages, language technology, less-resourced languages, machine translation, grammar, machine translation, natural language processing, language technology, lesser-resourced languages | Other | 2024 |
| Apertus Association | 6 | python, fpga, embedded, nix, vhdl, c, c/c++, linux, embedded, fpga, c++, vhdl, rust, c/c++ | computational photography, computer vision, digital imaging, fpga, digital hardware design, cinematography, vision, image processing, camera, photography, video, linux, embedded systems, image processing, computational photography, camera, digital imaging, real time | Graphics / Video / Audio / Virtual Reality | 2022 |
| API Client Tools at Google | 1 | openapi, grpc, protocolbuffers, rpc, rest | apis, automation, code generation, api description | Programming Languages and Development Tools | 2019 |
| API Dash | 1 | flutter, api, nosql, dart | testing, api, developer tools, automation, app development | 2024 | |
| appleseed | 2 | c++11, python, opengl | computer graphics, rendering, animation, simulation, image synthesis | Graphics / Video / Audio / Virtual Reality | 2020 |
| appleseedhq | 3 | python, qt, c/c++, c++, c++11, opengl | rendering, computer graphics, animation, physics, computer graphics, simulation, 3d, image synthesis, graphics, high performance, mathematics, vfx | Graphics / Video / Audio / Virtual Reality | 2019 |
| ArchC | 1 | c++, python, archc | computer architecture, processor design, simulators | Programming Languages and Development Tools | 2016 |
| Arches Project | 1 | 2014 | |||
| Arduino | 1 | arduino, golang, c/c++ | electronics, robotics, interactivity | Programming Languages and Development Tools | 2020 |
| ArduPilot | 7 | lua, drones, python, robotics, rtos, pixhawk, drones, c++, c/c++, robotics, linux, embedded, linux, c++, ros, c/c++ | rovers, uav, drones, autopilot, vision, UGV, real-time os, unmanned vehicle, robotics, embedded systems, real-time, autonomous vehicle, vison, drones, embedded systems, Drone | Other | 2024 |
| Ardupilot.org | 1 | drones, python, linux, robotics, c/c++ | vison, robotics, embedded systems, real-time os, drones | Other | 2019 |
| Artica ST ( Pandora FMS ) | 1 | 2012 | |||
| ASCEND | 6 | python, c, c/c++ | simulation, engineering, system modelling, solver, mathematical software | Science and Medicine | 2016 |
| Association Gephi | 1 | 2009 | |||
| Association Tatoeba | 1 | 2014 | |||
| Astrometry.net | 1 | 2011 | |||
| AsyncAPI | 1 | javascript, java, go, typescript, RAML | web, api, cloud, Architectures | 2024 | |
| Atheme.org | 1 | 2009 | |||
| Atomic Blue | 1 | 2011 | |||
| Audacity | 3 | c++, cmake, qt, VST, wxwidgets | Sound, audio processing, compression, Effects, audio analysis, audio, audio editor, editing | 2022 | |
| Babel | 1 | javascript, babel, nodejs | compilers, ast, minifier, tc39 | Programming Languages and Development Tools | 2017 |
| Battle for Wesnoth | 5 | 2014 | |||
| Bazel | 2 | windows, go, c/c++, linux, bazel, java | development tools, build tools, developer tools, build systems | Programming Languages and Development Tools | 2019 |
| BeagleBoard.org | 10 | Zephyr RTOS, risc-v, tensorflow, python, linuxkernel, raspberrypi, opencv, beaglebone, c, javascript, linux, fpga, dsp, hardwareacceleration | machine learning, iot, iot, robotics, teaching, physical computing, privacy/security, robotics, embedded, software defined radio, coprocessing, real time, hardware, real-time, ai, Personal Server | Programming Languages and Development Tools | 2024 |
| BeagleBoard.org Foundation | 3 | physicalcomputing, iot, python, risc-v, beaglebone, javascript, c, arm, linux, fpga, real-time, dsp, gcc | iot, iot, process automation, physical computing, audio, robotics, coprocessing, real time, open hardware, ros, ai, interfaces | Programming Languages and Development Tools | 2021 |
| BEAM Community | 6 | erlang, mqtt, beam, lisp, elixir, xmpp | iot, distributed databases, communication system, realtime, distributed computing, instant messaging, cloud, messaging, clustering, real time, database, scalability | Programming Languages and Development Tools | 2018 |
| BeeWare Project | 2 | python, javascript, android, mobile, ios, java | cross-platform, ui, app development, mobile, ide, cross desktop | Programming Languages and Development Tools | 2018 |
| Bench-Routes | 1 | react, golang, docker | monitoring, web, devops, time-series | 2021 | |
| Benetech | 3 | 2014 | |||
| Berkman Center at Harvard University | 2 | 2010 | |||
| Berkman Center for Internet & Society at Harvard University | 1 | 2012 | |||
| Berkman Center for Internet and Society | 1 | rubyonrails, javascript, sql/nosql, meteor.js, go | censorship, education, internet freedom, digital rights, law and policy | 2016 | |
| Berkman Klein Center for Internet & Society at Harvard University | 1 | rubyonrails, meteor.js, elasticsearch, javascript, elk | web, research, education, internet freedom, internet censorship | Other | 2018 |
| Berkman Klein Center for Internet and Society | 1 | rubyonrails, meteor.js, elasticsearch, python, java | web, research, education, internet freedom, internet censorship | Other | 2019 |
| Berkman Klein Center for Internet and Society at Harvard University | 1 | rubyonrails, meteor.js, d3, elasticsearch, javascript | digital rights, internet access, security and privacy, law, web | Web | 2017 |
| BigBlueButton | 1 | 2010 | |||
| Bika Open Source LIMS Collective | 1 | 2015 | |||
| Bio4j | 1 | 2014 | |||
| Bioconductor open source software for bioinformatics | 1 | 2013 | |||
| BioGears | 1 | c++11, c/c++, python, cmake | physiology, pharmacological modeling, computational biology, mathematical software | Science and Medicine | 2020 |
| biographer | 1 | 2012 | |||
| BioJavaScript | 1 | 2014 | |||
| BioJS | 1 | javascript, python | javascript, bioinformatics, life sciences, coding standards, visualization | Science and Medicine | 2016 |
| Biomedical Informatics, Emory University | 4 | tensorflow, python, deeplearning, hadoop, medicalimaging, java | precision medicine, distributed systems, big data visualization, data integration, web platform and services, cloud, science and medicine, data fusion | Science and Medicine | 2019 |
| Blender Foundation | 15 | opengl, python, vulkan, c, python, vulkan, opencl, c++, c++, opengl | rendering, 3d tools, vfx, animation, simulation, virtual reality, 3d, tools, 3d, graphics, graphics, modeling, artist tools, 3d animation, animation, games, rendering | Graphics / Video / Audio / Virtual Reality | 2024 |
| Bloomington, IN | 1 | 2012 | |||
| Bloomington, IN, USA | 1 | 2013 | |||
| BlueZ | 4 | 2012 | |||
| BOINC project, University of California, Berkeley | 1 | 2012 | |||
| Bookie | 1 | 2014 | |||
| Boost C++ | 2 | c++librariesc++11c++14c++17c++20, c++11, c++17, c++ | peer-reviewed libraries, c++ libraries c++ standard, c++, programming libraries, c++ standard | Programming Languages and Development Tools | 2020 |
| Boost C++ Libraries | 9 | c++14, c++14, c++11, boost, c++, c++11, c++17, c++17, c++20 | c++ standardization, c++ tools, algorithms, image processing, c++ development, library, data structures, c++, software engineering | Programming Languages and Development Tools | 2021 |
| Boston University / XIA | 4 | linuxkernel, c, ddos, advanceddatastructures, xia | computer networking, future internet architecture, future internet architecture, research, research | Cloud | 2018 |
| BRL-CAD | 15 | opengl, python, scripting, qt, tcl, javascript, c/c++, opencl, opencl, opengl, tcl/tk, c/c++ | performance, 2d/3d graphics, 3d cad geometry, high performance computing, visualization, high-performance computing, graphics user interface, 3d, cad, 2d/3d graphics, cad/cam/cae, solid geometry, ray tracing, ray tracing, data visualization, solid modeling, software visualization, real-time computer graphics, geometry, geometry, deep neural net rendering | Graphics / Video / Audio / Virtual Reality | 2024 |
| Buildbot | 4 | 2015 | |||
| BuildmLearn | 3 | python, bootstrap, django, android | mobile app, web apps, education, mlearning | End User Applications | 2016 |
| Buildroot | 1 | gnumake, kconfig, python, shell | embedded systems, linux, build tools, compilation | Programming Languages and Development Tools | 2019 |
| BumbleBee Autonomous Underwater Vehicle (BBAUV) | 1 | 2014 | |||
| BZFlag | 1 | 2009 | |||
| C2SI | 1 | python, java, go, nodejs, tensorflow | security, cloud, ai, mobile, software | 2024 | |
| Cadasta | 1 | python, django, javasc, javascipt | web, land rights, mapping, geo, geospatial | End User Applications | 2017 |
| caMicroscope | 4 | tensorflow, python, medical imaging, javascript, opencv, javascript, mongodb, medicalimaging, node, tensorflow, java | machine learning, data visualization, distributed systems, precision medicine, data integration, science and medicine, microscopy, dicom pathology, image analysis, AI/ML, cloud, science and medicine | Science and Medicine | 2024 |
| Canadian Center for Computational Genomics | 1 | python, r-project, javascript, react, nodejs | bioinformatics, science, visualization, statistics, web | Science and Medicine | 2019 |
| Canadian Centre for Computational Genomics | 2 | awk, r, python, nodejs, perl, javascript, react, bash, r-project | statistics, visualization, data science, next-generation sequencing, web development, bioinformatics | Science and Medicine | 2020 |
| Canadian Centre for Computational Genomics (C3G) - Montreal node | 1 | python, r-project, javascript, sql, git | bioinformatics, visualization, statistics, genomics, population genetics | Science and Medicine | 2016 |
| Carbon Language | 1 | llvm, c++, clang, Bison | programming languages, c++ | 2023 | |
| Casbin | 3 | nodejs, python, javascript, java, go, javascript, OIDC, react, rust, OAuth, go, golang | authorization, web, Authentication, authorization, cloud, web, front-end, IAM, cloud, security | Security | 2022 |
| CASTOR | 1 | java, scala, bytecode | testing, software analysis, optimization, development, automated program repair | 2021 | |
| Catrobat | 5 | web, php, symfony, espresso, javascript, android, html5, ios, swift, java | app development, web, gaming, visual programming, programming tools, robotics, web applications, education, creativity tools, scratch, programming language | Programming Languages and Development Tools | 2020 |
| Catrobat (formerly Catroid Project) | 1 | 2014 | |||
| Catroid Project | 3 | 2013 | |||
| cBioPortal for Cancer Genomics | 6 | reactjs, typescript, web, mysql, javascript, java, webapps, javascript, bigdata, webservices, react, html, database, java | precision medicine, data visualization, cancer, biology, big data, cancer, precision medicine, bioinformatics, cancer research, genomics, big data, bioinformatics | Data and Databases | 2024 |
| CBMI@UTHSC | 1 | reactjs, python, flask, javascript, tensorflow | machine learning, deep learning, sepsis prediction, sepsis detection, web applications | Science and Medicine | 2019 |
| CCExtractor development | 11 | c#, python, subtitles, c, python, rust, rust, ml, linux, flutter, arduino, ffmpeg, raspberrypi, ai, javascript, linux, flutter, video, cloud, node.js, visualstudio | vr, subtitles, video, decoder, subtitles, database, bittorrent, accesibility, vision, media, bittorrent, tv, linux, accessibility, ai, linux, television, media analysis, language, mobile, video, movies, media | Graphics / Video / Audio / Virtual Reality | 2024 |
| Celluloid | 1 | ruby, multi-threading, multi-core, zeromq, high-resolutiontimers | concurrency, parallel, evented, distributed, actor model | Programming Languages and Development Tools | 2016 |
| Center for Research In Open Source Software (CROSS) at UC Santa Cruz | 1 | ceph, hadoop, c++, javascript, python | distributed networks, reproducibility, storage systems, big data, opendata | Other | 2018 |
| Center for Research in Open Source Software at UC Santa Cruz | 1 | python, javascript, c/c++, verilog | cloud databases, reproducibility, ceph, architecture, generative text | Other | 2019 |
| Center for Research in Open Source Software, UC Santa Cruz | 1 | c/c++, robotics, c++17, ceph, arrow | databases, hardware, storage, sensors, callibration | 2021 | |
| Center for the Study of Complex Systems, Univ of Michigan | 1 | 2009 | |||
| Center for the Study of Complex Systems, University of Michigan | 1 | 2011 | |||
| Center for Translational Data Science | 1 | python, aws | bioinformatics, data science, cloud, Data Meshes | 2022 | |
| CentOS Project | 1 | 2015 | |||
| Centre for Computational Medicine, SickKids Research Institute | 1 | 2014 | |||
| Ceph | 7 | typescript, python, javascript, object-storage, c/c++, angular, c++, c++ | distributed systems, Software-Defined-Storage, network storage, cloud, cloud storage, storage, storage | Data and Databases | 2024 |
| Ceph Foundation | 1 | c/c++, jenkins, python, javascript, shellscript | distributed systems, software defined storage | Other | 2020 |
| Ceph Storage | 1 | 2015 | |||
| CERN SFT | 5 | python, clang, javascript, c++ | machine learning, numerical and data analysis software, cloud, simulation software | Science and Medicine | 2016 |
| CERN Virtual Machine (CernVM) | 1 | 2011 | |||
| CERN-HSF | 8 | parallelization, python, machinelearning, parallelalgorithms, artificial intelligence, c/c++, concurrency, container orchestration, concurrency, data analysis, dataanalysis, c/c++ | machine learning, particle physics, performance optimization, big data, high-energy physics, physics, algorithmics, performance optimization, big data, particle physics, algorithmics, Performance Optimisation, big data science | Science and Medicine | 2024 |
| Cesium community | 2 | 2015 | |||
| CGAL - Computational Geometry Algorithms Library | 3 | 2012 | |||
| CGAL Project | 7 | python, qt, swig, c/c++, github, qt, c++, git | computational geometry, mesh processing, geometry processing, computation geometry, point set processing, triangulation, geometry processing, arrangement, geometry, webhook, mesh processing | Science and Medicine | 2024 |
| CHAOSS | 3 | elasticsearch, postgresql, python, mysql, javascript, javascript, jupyter, elasicsearch, machine learning, kibana, airflow | software sustainability, community health, Diversity Equity and Inclusion, community building, metrics, security and software bill of materials, open source software metrics, analytics, community, sustainability, health | Other | 2022 |
| CHAOSS Project | 1 | python, elk, vue, nltk, fossology | metrics, community, analytics, dependencies, diversity and inclusion | 2021 | |
| CHAOSS: Community Health Analytics Open Source Software | 1 | python3, javascript | data visualization, visualization, machine learning | End User Applications | 2018 |
| Chapel | 5 | chapel, python, highperformancecomputing, c, python, c++, c++, chapel, high performance computing | programming languages, compilers, high performance computing, programming languages, parallel computing, distributed computing, parallel computing, distributed computing, high performance computing | Programming Languages and Development Tools | 2021 |
| Checker Framework | 4 | java | programming languages, type systems, programmer productivity, verification, bug finding, software engineering, pragrammer productivity | Programming Languages and Development Tools | 2020 |
| Checkstyle | 7 | antlr, antlr, xpath, java | coding conventions, static code analysis, coding standards, static code analysis, code review tool, static code analysis‎, code review tool, coding standards, coding conventions | Programming Languages and Development Tools | 2024 |
| CHIPS Alliance | 3 | risc-v, fpga, ASIC, chisel, systemverilog | HDL, chiplets, IP cores, ASIC design, soc | 2024 | |
| Chromium | 7 | python, javascript, java, git, c++ | browser, operating-system, web | 2024 | |
| Cilium | 1 | c, linux, go, kubernetes, ebpf | networking, kernel, cloud-native | 2021 | |
| CircuitVerse.org | 6 | vue, bootstrap, canvas, html5canvas, canvas, postgresql, javascript, html5, internationalization, machine learning, rails, rails | digital logic design, digital logic design, simulation, web, education, pedagogy, web, simulations, pedagogy, simulations, education | Web | 2024 |
| City of Boston | 1 | python, javascript | web, machine learning, gis, civic tech, analytics | 2024 | |
| CiviCRM | 5 | d3js, mysql, php, javascript, angularjs | membership management, events management, nonprofits, civic technology, crm, fundraising | Data and Databases | 2020 |
| CiviCRM LLC | 2 | mysql, php, angularjs, d3.js, angular, php | nonprofit, civil society, contacts&calendar sync, crm | End User Applications | 2021 |
| Classical Language Toolkit | 3 | javascript, python, java | machine learning, machine trans, web, human language technologies, ai, nlp, web, machine translation, natural language processing, machine | Other | 2018 |
| Climate Code Foundation | 2 | 2012 | |||
| CLiPS, University of Antwerp | 3 | python, mongodb, machinelearning, javascript | machine learning, computational linguistics, text analytics, data mining, artificial intelligence, natural language processing, text generation | Data and Databases | 2019 |
| Clojure | 4 | clojurescript, functionalprogramming, clojure, javascript, jvm | compilers, build systems, development tools, functional programming, programming language | Programming Languages and Development Tools | 2017 |
| Clojure/dev | 1 | 2012 | |||
| Cloud Native Computing Foundation (CNCF) | 4 | docker, go, grpc, cloud, rust, golang, prometheus, kubernetes, fluentd, servicemesh | tracing, monitoring, devops, service mesh, containers, cloud, web, kubernetes, container, logging, cloud native | Cloud | 2020 |
| CloudCV | 9 | django, python, deeplearning, docker, computervision, caffe, reactjs, machinelearning, angularjs, docker, lua, artificialintelligence, aws, javascript, django, python3, angularjs, cloud, angular, torch, aws | machine learning, computer vision, django, python, deep-learning, deep learning, artificial intelligence, cloud computing, angularjs, reinforcement learning, artificial intelligence, deep learning, web development, react, AI/ML, computer vision, tensorflow | Cloud | 2024 |
| CMUSphinx | 2 | cross-platform, python, c, javascript, hiddenmarkovmodels | pronunciation, speech recognition, user interface, real time, education | Graphics / Video / Audio / Virtual Reality | 2017 |
| CMUSphinx Speech Recognition Toolkit | 1 | 2011 | |||
| CNCF | 4 | go, OpenTelemetry, prometheus, rust, kubernetes, envoy | cloud, cloud computing, cloud native, observability | 2024 | |
| coala | 4 | reactjs, haskell, python, haskell, docker, django, emberjs, python3, docker, angularjs, antlr, python 3, antlr, java | static code analysis, code analysis, language server, devops, devops, dependency management, chatops, chat, chatops | Programming Languages and Development Tools | 2021 |
| Cockpit Project | 1 | python, javascript, react | operating systems, web, linux | 2023 | |
| Code for America | 3 | 2013 | |||
| CodeCombat | 1 | 2014 | |||
| CodeMirror | 1 | 2014 | |||
| Comprehensive C Archive Network | 1 | 2009 | |||
| Computational Biology @ University of Nebraska-Lincoln | 4 | reactjs, mysql, postgresql, javascript, react, flask, webgl, java | network biology, networks, systems biology, computational biology, biological networks, network simulation, omics data, data science, web application, real time, bioinformatics, image analysis | Science and Medicine | 2019 |
| Computational Science and Engineering at TU Wien | 5 | css, javascript, c++, html, java | mesh generation, visualization, simulation, science and enineering, internet of things | Science and Medicine | 2016 |
| Connexions | 2 | 2012 | |||
| Continuous Delivery Foundation | 2 | screwdriver, spinnaker, tekton, screwdriver.cd, tekton, ortelius, ci/cd, spinnaker, jenkins | continuous integration, great developer tooling, continuous delivery, devops, cloud, continuous delivery, developer tools | Cloud | 2021 |
| Conversations.im | 2 | xmpp, python, gtk, javascript, javafx, android, java | ux, ui, web, usabilty, mobile, real time, instant messaging, desktop | Social / Communications | 2018 |
| Copyleft Games | 4 | python, javascript, c, opengl, xmpp | web, networking, graphics, developer tools, education | Graphics / Video / Audio / Virtual Reality | 2017 |
| coreboot | 11 | assembler, x86, x86, c, arm, assembly, arm, openhardware, assembly | BIOS, firmware, embedded systems, boot loader, real time, boot loader, hardware, drivers, firmware, drivers | Operating Systems | 2023 |
| Creative Commons | 8 | elasticsearch, css, python, wordpress, django, javascript, postgresql, vue.js, javascript, wordpress, php | copyleft, legal, legal, web, nonprofit, nonprofits, creative commons, copyleft, creative commons, nonprofit | Web | 2024 |
| CRIU | 5 | linux kernel, c, python, linux, linux, assembly, go | live migration, snapshots, checkpoint-restore, containers, cloud, cloud, Checkpoint/Restore, live migration, operating systems | Operating Systems | 2024 |
| CRIU (Checkpoint/Restore in User-space) | 1 | docker, linux, containers, kernel | cloud, save/restore, load-balancing, zero-downtime, migration | Operating Systems | 2019 |
| Crowdsourcing Biology | 1 | 2012 | |||
| Crowdsourcing Biology at the Scripps Research Institute | 1 | 2013 | |||
| Crypto Stick | 2 | 2014 | |||
| Crystal Space | 6 | 2014 | |||
| Cuneiform Digital Library Initiative | 1 | python, mariadb, rdf, php, nltk | natural language processing, machine translation, information retrieval, linguistics, semantic web | Data and Databases | 2018 |
| Cuneiform Digital Library Initiative (CDLI) | 4 | html/css, python, mysql, css, php, javascript, python3, java, docker, html, SCSS, mysql, java, php | computer vision, data visualization, computational linguistics, web portal, lod, nlp, digitization, data-collection, nlp, linguistics, History, cultural heritage, culture, data processing, data processing pipeline | Data and Databases | 2022 |
| CVAT | 1 | python, django, react, kubernetes, typescript | machine learning, computer vision, ai, deep learning, data | 2024 | |
| CVXPY | 1 | python | convex optimization, optimization, dsl | 2016 | |
| D Foundation | 1 | dlang, c++ | compilers | Programming Languages and Development Tools | 2016 |
| D Programming Language | 1 | dlang, linux, windows, osx, bsd | programming languages, object-oriented programming, functional programming, web programming, system programming | Programming Languages and Development Tools | 2019 |
| darktable | 1 | 2011 | |||
| Dart | 5 | programming-language, programming-language, dart, dart, flutter | programming languages, mobile-apps, mobile apps, mobile apps | Programming Languages and Development Tools | 2024 |
| Data for the Common Good | 1 | python, javascript, kubernetes, reactjs, terraform | web, health, data, infrastructure, software | 2024 | |
| DatenLord | 1 | rust, kubernetes, Distributed key-value store, Fault tolerant, Metadata management | cloud, open source, storage, Data Infrastructure | 2024 | |
| DBpedia | 8 | scala, graph, apachespark, skala, python, javascript, java, javascript, nosql, sparql, sparql, rdf, rdf, scala, java | knowledge graphs, linked data, largelanguagemodel, ontologies, big data, knowledge graph, knowledge extraction, data science, wikipedia, data analytics, knowledge graph, data extraction, natural language processing, linked data, data extraction, natural language processing, data analytics, semantic web | Data and Databases | 2024 |
| DBpedia & DBpedia Spotlight | 3 | 2015 | |||
| DBpedia Spotlight | 2 | python, nosql, rdf, scala, java | big data, data science, natural language processing, semantic web | Data and Databases | 2016 |
| Debian | 6 | python, javascript, java, irc, javascript, git, irc, c/c++, perl, rust, c++, git, c/c++ | HPC MPI Benchmarking, debian-ci, packaging, kernel, packaging, package managers, cloud, CI/CD, clojure, Android SDK, ai, operating system, android-sdk, operating systems | Operating Systems | 2024 |
| Debian Project | 8 | python, django, ruby, c, javascript, c/c++, c++, java | continuous integration, web, packaging, operating system, applications, community, communications, operating systems | Operating Systems | 2018 |
| DeepChem | 1 | python, numpy, pytorch, HuggingFace | artificial intelligence, chemistry, biology, materials science, Drug Discovery | 2024 | |
| DeepPavlov | 1 | python, tensorflow, docker, python deep learning frameworks, pytorch | nlp, conversational, agent | 2021 | |
| Department of Biomedical Informatics (BMI), Emory University School of Medicine | 1 | python, java, tensorflow, medical imaging, deeplearning | cloud, distributed systems, science and medicine, data integration, workflows | 2021 | |
| Department of Biomedical Informatics, Emory University | 3 | dicom, python, javascript, java, Colab | data integration, radiology, ML/AL, science and medicine, workflows | 2024 | |
| Department of Biomedical Informatics, Stony Brook University | 1 | 2015 | |||
| Dept. of Biomedical Informatics, Emory University | 2 | 2013 | |||
| Developers Italia | 2 | python, ruby, go, c/c++, node.js, html/css/js, scala, java | public code, open government, data-science, open source, government, web applications, open data, identity | Other | 2019 |
| Differ | 1 | 2012 | |||
| Digital Impact Alliance | 2 | python, php, javascript, android, java | humanitarian, charity, end user application, international, social good, health | Other | 2019 |
| Digital Impact Alliance (DIAL) at UN Foundation | 2 | android, python, php, javascript, javascript, linux, many more, c++, android | humanrights, global, nonprofit, humanitarian, international, global, international, nonprofit, humanrights | Other | 2021 |
| Digital Mars | 2 | 2012 | |||
| Discourse | 2 | html/css, rubyonrails, docker, ruby, javascript, javascipt, ember | communication, real time, forum, web development, web applications, community, email, asynchronous | Social / Communications | 2017 |
| Distributed and Unified Numerics Environment (DUNE) | 2 | python, cmake, c++ | high performance computing, physics, scientific computing, mathematics, partial differential equations | Science and Medicine | 2016 |
| Django Software Foundation | 15 | django, python, django | web applications, web development, web, python | Web | 2024 |
| DocBook Project | 2 | 2012 | |||
| Dojo Foundation | 1 | 2010 | |||
| DokuWiki | 1 | 2011 | |||
| Dr. Memory | 1 | 2014 | |||
| DragonFly BSD | 5 | 2013 | |||
| Dreamwidth Studios | 1 | 2010 | |||
| Drizzle | 3 | 2012 | |||
| Drizzle Database | 1 | 2013 | |||
| Drupal | 11 | drupal8, web, php, symfony, javascript, object-oriented, html5, webdevelopment, contentmanagementsystem, cms, sql | web development, object-oriented, web application, content management, martech, symfony, cms, object oriented programming, web, javascript, drupal 8, web development, cms, content management, apps, php, object-oriented, sql, mobile-apps, backend | Web | 2020 |
| Drupal Association | 3 | mysql, javascript, symfony, html, php | web, Massive community, DXP, Inclusive, cloud | 2024 | |
| DSpace Foundation | 1 | 2009 | |||
| DuraSpace | 2 | 2011 | |||
| e-cidadania | 1 | 2012 | |||
| Earth Science Information Partners | 1 | python, kubernetes, jupyter, deeplearning, gdal | earth observation, cloud databases, data visualisation, semantic web, data-science | Science and Medicine | 2019 |
| Earth Science Information Partners (ESIP) | 1 | kubernetes, dask, xarray, python, javascript | earth data, semantics, discovery, data visualization, earth science | Data and Databases | 2018 |
| Eclipse Foundation | 6 | eclipsejavaide, deeplearning, rtos, jakartaee, c/c++, che, jakartaee, geospatial, eclipsejavaide, deeplearning, java | eclipse, robotics, cloud native java, automotive, tools, iot & edge, tools, robotics, automotive, cloud native java, iot & edge, java | Other | 2024 |
| Eclipse Vert.x | 1 | java, reactiveextensions, kotlin, microservices, event-loop | reactive, unopionated, polyglot, distributed, high performance computing | Programming Languages and Development Tools | 2017 |
| Ecole Polytechnique Federale de Lausanne, Scala Team | 1 | 2011 | |||
| Elastic | 2 | jruby, react, node.js, golang, java | monitoring, data visualization, search, databases, observability, logging, data analytics, security | Data and Databases | 2020 |
| Electron | 2 | Chromium, typescript, javascript, node.js, c++ | framework, desktop, javascript | 2024 | |
| Electronic Frontier Foundation/The Tor Project | 2 | 2012 | |||
| Elgg | 1 | 2011 | |||
| Elm Software Foundation | 1 | elm, javascript, haskell | functional programming, compilers, web applications, programming languages, user interface | Programming Languages and Development Tools | 2017 |
| Elm Tooling | 1 | functional programming, typescript, elm | web, linter, tooling, parser | 2021 | |
| Embox | 1 | c, gcc, assembly | embedded systems, rtos | Operating Systems | 2020 |
| Encyclopedia of Life | 1 | 2015 | |||
| Environmental Data And Governance Initiative | 1 | python, javascript, rubyonrails, googlecloud, go | crawling, api, open data, machine learning, open science | Data and Databases | 2017 |
| Erlang Ecosystem Foundation | 1 | erlang, elixir, lfe, beam | language, soft real-time, distributed systems, messaging, instant messaging | Programming Languages and Development Tools | 2020 |
| ES Operating System | 1 | 2009 | |||
| ESUG (European Smalltalk User Group) | 2 | 2013 | |||
| Eta | 1 | haskell, jvm, java | functional-programming, runtime systems, compilers, programming-tools | Programming Languages and Development Tools | 2018 |
| Etherboot Project | 3 | 2011 | |||
| eunomia-bpf | 1 | linux, llvm, ebpf, webassembly | cloud, OS, runtime | 2024 | |
| European Smalltalk User Group (ESUG) | 1 | 2010 | |||
| European Space Agency, The Advanced Concepts Team | 1 | 2010 | |||
| Evergreen | 1 | 2012 | |||
| Evergreen Project | 1 | 2011 | |||
| Expert Labs | 1 | 2010 | |||
| 1 | 2010 | ||||
| Fedora Project | 5 | postgres, python, postgresql, python3, javascript, ansible, flask, html5, linux, angular, golang, webdevelopment, linuxdistribution, html/css/js, git, rest | upstream, linux distribution, realtime messaging, metrics, server, containers, distribution, contributor activity, linux, web development, mobile, community, community architecture, desktop | Operating Systems | 2020 |
| Fedora Project & JBoss.org (Red Hat) | 1 | 2009 | |||
| FFmpeg | 12 | assembler, assembler, asm, c, git, assembly, asm, c99, git | filter, subtitles, multimedia, multimedia, image, video, audio, video, image processing, subtitles, compressio, images, compression | Graphics / Video / Audio / Virtual Reality | 2024 |
| FFmpeg / Libav | 1 | 2011 | |||
| FiberCorps | 1 | 2011 | |||
| Fiji | 1 | 2009 | |||
| FLARE | 2 | ida-pro, python, Ghidra | malware-analysis, reverse-engineering, emulation, decompilation, disassembly | 2024 | |
| Flashrom | 1 | c, x86, bios, rom, spi | hardware, drivers, firmware, flash chips, low level programming | 2022 | |
| Flowgrammable | 1 | 2014 | |||
| fluxbox | 1 | 2011 | |||
| Formal Systems Laboratory at UIUC | 1 | 2012 | |||
| Forschungszentrum Jülich | 1 | python, mpi, high performance computing, pytorch, gpu | neuroscience, data analytics, data-intensive science, earth-system monitoring, space science | 2022 | |
| Fortran-lang | 4 | python, llvm, fortran, compiler, c++, c/c++ | Fortran, build systems, compilers, numerical computing, high-performance computing, programming languages, libraries, engineering, science | 2024 | |
| FOSDEM | 2 | html/css, rubyonrails, grafana, postgresql, javascript, voctomix, influxdb, git | programming languages, web, ruby, conference, programming tools, rails, rails application, web development, video processing | Programming Languages and Development Tools | 2019 |
| FOSDEM VZW | 1 | rubyonrails, postgresql, git | web, programming tools, programming, programming languages, ruby | Programming Languages and Development Tools | 2016 |
| FOSSASIA | 9 | reactjs, android, python, php, javascript, javascript, c, android, artificialintelligence, jsonapi, java | machine learning, android, json, web, open science, search, personal assistants, cloud, artificial intelligence, voice assistants, event management, graphics, mobile, fashiontech, web development | Other | 2024 |
| FOSSology | 6 | twig, postgresql, python, php, javascript, postgresql, javascript, c/c++, linux, lamp, go, c/c++, php | spdx, licensing, oss licencing, open source, spdx, license-scan, nlp, compliance automation, license compliance, licensing, compliance, license management, automation, license compliance | End User Applications | 2024 |
| FOSSology Project | 1 | postgresql, php, c/c++, jquery, bash | compliance, license-scan, oss licensing, spdx, oss compliance | Other | 2019 |
| Foundation for Learning Equality | 1 | 2015 | |||
| FrameNet Brasil (UFJF) | 2 | python, mysql, php, javascript, javascript, mysql, php | multimodality, multimodal communication, video processing, multilinguality, natural language processing, multilinguality, natural language understanding, natural language understanding | Data and Databases | 2021 |
| FrameNet Brasil at the Federal University of Juiz de Fora | 1 | php, mysql, javascript, python | natural language processing, multimodality, natural language understanding, image processing, machine translation | Data and Databases | 2019 |
| Free and Open Source Silicon Foundation | 9 | risc-v, compiler, python, fpga, web development, jenkins, c++, risc-v, vhdl, javascript, c, synthesis, chisel, webdevelopment, compiler, verilog, openhardware, jenkins | debug, debugging, simulation, eda tools, hardware, fpga, simulation, embedded systems, electronic design tools, web services, debug, web, web services, web community, digital design, eda, open hardware, compilers, electronic design tools, silicon | Other | 2024 |
| Free Software Initiative of Japan | 1 | 2009 | |||
| Free UK Genealogy | 1 | mongodb, rubyonrails, mysql, python, css/html | ai, machine learning, ui/ux, web apps, open data | Data and Databases | 2018 |
| FreeBSD | 9 | llvm, clang, shell, c/c++, shellscript, make, assembly | virtualization, kernel, kernel, cloud, embedded systems, embedded, embeddded, embedded systems, security | Operating Systems | 2019 |
| FreeBSD Project | 2 | llvm, c/c+, shell script, assembly, c/c++, shellscript, make, assembly, make | virtualization, kernel, cloud, kernel, cloud, embedded systems, operating systems, embedded systems, operating systems | Operating Systems | 2021 |
| FreeCAD | 2 | python, qt, OpenInventor, c++, OpenCASCADE | engineering, CAM, graphics, cad, architecture | 2024 | |
| FreedroidRPG | 2 | 2011 | |||
| Freenet Project Inc | 5 | 2014 | |||
| Freeseer recording and streaming suite | 1 | 2012 | |||
| Freeseer video recording and streaming suite | 1 | 2011 | |||
| FreeType | 7 | python, gnuautotools, autotools, c, fonts, meson, gnumake | rendering, truetype, fonts, opentype, truetype, library, graphics, fonts, rendering, opentype | Graphics / Video / Audio / Virtual Reality | 2024 |
| Freifunk | 13 | python, javascript, c, python, batman, openwrt, rust, json, lede/openwrt, ruby, gnu/linux, lua, shellscript, html/css/js, c/c++, javascript, shell, html, olsr, html/css, openwrt | software defined networking, routing, embedded systems, open hardware, network, wireless networks, embedded systems, software-defined networking, user interface, web apps, routing protocols, decentralized, wireless communications, federation, wireless, monitoring, mesh, routing, firmware development, wifi, web applications | Social / Communications | 2024 |
| Frenetic | 1 | 2014 | |||
| Frescobaldi | 1 | python, pyqt | music engraving | End User Applications | 2017 |
| FRRouting | 3 | routing, linuxkernel, linux kernel, c, networking, lua, linux, networking, linux | software defined networking, performance, routing, systems programming, systems, networking, linux, networking, software defined networking, linux, systems programming | Other | 2022 |
| Funf.org | 1 | 2013 | |||
| Gambit: Software Tools for Game Theory | 2 | javascript | graphics, game theory, academic projects | Science and Medicine | 2016 |
| Ganeti | 4 | haskell, xen, python, virtualization, kvm | virtualization, automation | 2016 | |
| Ganglia | 1 | 2014 | |||
| GCC | 1 | 2009 | |||
| GCC - GNU Compiler Collection | 4 | 2015 | |||
| GCC, the GNU Compiler Collection | 2 | 2011 | |||
| GCP Scanner | 1 | python, google cloud | security, automation, scanning, google cloud | 2023 | |
| GDevelop | 1 | javascript, c/c++, webdevelopment, gamedevelopment, react | gaming, graphics, web applications, web, compilers | Programming Languages and Development Tools | 2020 |
| Geeklog | 2 | 2010 | |||
| Genes, Genomes and Variation | 4 | python, mysql, perl, javascript, rest | data visualization, web, scientific visualization, web platform and services, genomics, databases, data visualisation, data analysis, bioinformatics, database | Science and Medicine | 2019 |
| GENIVI Alliance | 2 | some/ip, c/c++, yocto, embedded, automotive, java | communication, functional safety, embedded systems, bigdata, graphics, diagnostics, automotive, middleware | Other | 2019 |
| GENIVI Development Platform | 1 | linux, c, yocto, c++, qt | automotive, cars, embedded systems, embedded, automobile | Programming Languages and Development Tools | 2017 |
| GenMAPP | 1 | 2009 | |||
| GenMAPP, Cytoscape, WikiPathways & Reactome | 1 | 2010 | |||
| Genome Assembly and Annotation | 3 | python, javascript, docker, nextflow, pytorch, rust, mysql | machine learning, deep learning, genomics, genomics, data science, big data, hpc, cloud, workflows | 2023 | |
| Genome Informatics | 3 | 2013 | |||
| Gentoo | 1 | 2009 | |||
| Gentoo Foundation | 13 | python, perl, linuxkernel, bash, c, shell, python, shellscript, c/c++, shell, linux, linux, sql, bash, c/c++ | virtualization, application security, embedded, operating system, package, embedded systems, package management, linux, embedded, embeddded, security, automation, init, operating systems, embedded systems, init, security, init systems | Operating Systems | 2023 |
| GeomScale | 5 | r, python, jupyter, r, c++, c++, github-actions | computation geometry, statistics, statistics, biology, computational biology, finance, data science, computational geometry, mathematics, mathematical software, optimization | Science and Medicine | 2024 |
| Gephi Consortium | 3 | 2013 | |||
| Gephi NGO | 1 | 2010 | |||
| GFOSS - Open Technologies Alliance | 1 | python3, php/javascript/html, css/html, java, c/c++ | python, gtk, java jsp, c++ tools, javascript | Other | 2018 |
| GFOSS - Open Technology Alliance | 1 | python, mysql, javascript, perl, python deep learning frameworks | open hardware, python, java, javascript, perl | 2021 | |
| GIMP | 1 | 2012 | |||
| Git | 14 | shell script, c, shell, git, shellscript, git, c language | dvcs, version-control, version control, dvcs | Programming Languages and Development Tools | 2024 |
| Git Development Community | 1 | 2009 | |||
| GitHub | 2 | c#, ruby, node.js, atom, git | editor, version control, collaboration, git | 2016 | |
| GitLab | 3 | vue, ci, ruby, javascript, devops, git, ruby, golang, ruby on rails, go | cloud, devops, devops | 2023 | |
| Global Alliance for Genomics & Health | 2 | python, protobuf, sql, java | data sharing, big data, genomics, standards, apis | Science and Medicine | 2016 |
| Global Alliance for Genomics and Health | 8 | sql, postgresql, python, hl7 fhir, spring, java, spring, c/c++, cloud, mongodb, node.js, react, c++, java, rust, sql | data sharing, data security, web, genetics, bioinformatics, genomics, genomics, standards, healthcare, bioinformatics, standards, genetics, cloud, data discovery | Science and Medicine | 2024 |
| GNOME | 11 | python, gobject, gtk, c, javascript, vala, rust, gtk+ | productivity, desktop applications, end user applications, desktop environment, operating system, end user application, application, applications, games, desktop, design | End User Applications | 2020 |
| GNOME Foundation | 4 | Flatpak, javascript, c, python, linux, gtk, rust | apps, desktop, application, open source, graphics, end user application, desktop, operating system, design, operating systems | 2024 | |
| GNOME Project | 1 | 2011 | |||
| GNSS-SDR | 11 | c++librariesc++11c++14c++17c++20, c++14, gnss, c++11, c, c++14, c/c++, c++17, sdr, c++, c++, gnss, c++17, sdr, c++20 | navigation, signal processing, geospatial, software defined radio, gnss, communications engineering, software defined radio, geolocation, communications, geolocation, digital signal processing, gnss, communications, navigation | Science and Medicine | 2024 |
| GNU Compiler Collection | 1 | c/c++, gnuautotools | compilers, toolchain, openmp | Programming Languages and Development Tools | 2019 |
| GNU Compiler Collection (GCC) | 6 | gnuautotools, c, c/c++, openmp, gnu make, gnu autotools, c++, gnumake | openmp, compilers, link time optimization, toolchain, toolchain, openmp, rust, developer tools | Programming Languages and Development Tools | 2024 |
| GNU Image Manipulation Program | 6 | c, GEGL | photography, graphics, design, illustration | 2024 | |
| GNU Image Manipulation Program - GIMP | 1 | 2010 | |||
| GNU Mailman | 3 | python, django, python3, email, rest | communication, mailing lists, email | End User Applications | 2019 |
| GNU Mailman Project | 1 | python, django, restful api, sqlalchemy | web, mail | 2021 | |
| GNU Octave | 10 | hg, hg, c++ | matlab, numerical methods, numerical and data analysis software, numerical methods, scientific computing, scientific computing, numerical computation, mathematics, numerical computation, matlab, data processing | Programming Languages and Development Tools | 2024 |
| GNU Project | 10 | gcc, python, posix, c, lisp, c++, eiffel, autotools | binary tools, command line, toolchain, OS, operating system, tools, free software, operating systems | Operating Systems | 2024 |
| GNU Radio | 11 | python, qt, rf, softwareradio, softwaredefinedradio, simd, qt, c++, android, c++, simd, dsp | cybersecurity, Software-Defined Radio, digital signal processing, information theory, signal processing, software radio, spectrum analysis, cybersecurity, radar, cognitive radio, real-time, communications engineering, dsp, software defined radio, wireless communication, communications engineering, wireless communications, dsp, communication, communication, gui, software defined radio | Other | 2024 |
| GnuCash Free Accounting Software | 1 | 2011 | |||
| GnuTLS | 1 | c, Cryptography, TLS | security, cryptography, TLS, DTLS | 2023 | |
| Go OpenOffice | 2 | 2010 | |||
| Godot Engine | 5 | cpp, gdscript, vulkan, c/c+, webassembly, vulkan, c/c++, github, crossplatform, gdscript, c++, c++, opengl | rendering, cross-platform, game engine, game engine, gaming, game development, cross-platform, virtual reality, game development, graphics, graphics, real time, game engines, programming | Graphics / Video / Audio / Virtual Reality | 2022 |
| Google Caja | 1 | 2010 | |||
| Google FHIR SDK | 1 | android, kotlin, sqlite, fhir, materialui | global health, ai, gis, precision health, enteprise analytics | 2021 | |
| Google Kubernetes | 1 | 2015 | |||
| Google Open Source Programs Office | 5 | 2014 | |||
| Google’s Open Source Programs Office | 1 | 2009 | |||
| GPAC | 2 | mp4box, dash, javascript, c, mp4, c++, opengl | rendering, streaming, multimedia, packaging, playback, research, industry, interactivity | Graphics / Video / Audio / Virtual Reality | 2020 |
| gprMax | 4 | mpi, cython, openmp, python, mpi, cuda, openmp, cython, cuda, opencl | ground penetrating radar, ground penetrating radar, geophysics, engineering, engineering, geophysics, science, optimisation, electromagnetics, electromagnetics | Science and Medicine | 2024 |
| GRAME | 3 | typescript, javascript, c, python, c++ | function programming language, digital signal processing, audio, compiler | 2024 | |
| Grameen Foundation | 1 | 2010 | |||
| Grameen Foundation - MOTECH | 1 | 2014 | |||
| Graphite | 1 | rust, typescript, ai, webgpu, stable diffusion | graphics, computational geometry, rendering, design, animation | 2024 | |
| GraphQL Foundation | 1 | graphql, javascript, react, node.js | data and databases, api, graphql | Data and Databases | 2020 |
| Grassroots DICOM | 2 | 2012 | |||
| Green Navigation | 2 | apachespark, tensorflow, polymer, postgresql, go, javascript, react, electromobility, java | machine learning, web, algorithm prototyping/visualization, routing, mobile, web applications, database, eletric mobility | Other | 2017 |
| Groovy Community | 1 | 2014 | |||
| gRPC | 2 | grpc, networking, cloud, micro-services, distributedsystems, http/2, scalability, microservices | distributed systems, micro services, microservices, cloud, distributed networks, infrastructure, apis, middleware, communications, full stack web and mobile | Cloud | 2018 |
| GRR Rapid Response | 1 | python 3, angular, typescript, materialui, backend | computer security, digital forensics | 2021 | |
| GStreamer | 4 | 2012 | |||
| gVisor | 1 | linux, c/c++, golang, posix | virtualization, sandbox, kernel, containers | 2021 | |
| Hackystat | 1 | 2009 | |||
| Haiku | 13 | virtualization, bsdunix, ffmpeg, posix, x86, posix, arm, unix, webkit, bsd unix, c++, unix | gui, kernel, operating system, graphics, virtualization, filesystem, network, media, user interface, desktop integration, web, desktop, kernel, frameworks, network, filesystems, graphics, drivers, media, desktop | Operating Systems | 2024 |
| Halide | 1 | llvm, c++ | compilers, computer vision, graphics, high-performance computing | 2021 | |
| haskell.org | 13 | haskell, cabal, codeworld, servant, compiler, ghc, ghc | programming languages, haskell, build tools, education, compilers, #compilers, #education, programming languages, functional programming, programming tools, functional-programming, #functional-programming, #programming-tools, education, #programming-languages, functional programming | Programming Languages and Development Tools | 2024 |
| Hazelcast | 1 | java, distributedsystems | in memory data grid, data streaming, stream processing | Data and Databases | 2020 |
| Health Information Systems Programme | 3 | reactjs, javascript, android, gradle, java | gis, e-health, global health and development, mobile, data processing | 2016 | |
| Hedgewars Project | 2 | 2012 | |||
| HelenOS group at Department of Distributed and Dependable Systems, Charles University in Prague | 3 | 2014 | |||
| Helsinki Institute for Information Technology | 1 | 2011 | |||
| Homebrew | 5 | macos, osx, ruby, rspec, github, linux, macos, ruby, bash, git | macos, homebrew, terminal applications, package system, development tools, package managers, package management, distribution, github, linux, macos, package manager | Programming Languages and Development Tools | 2022 |
| HPCC Systems® | 1 | 2015 | |||
| Hugin - Panorama photo stitcher | 1 | 2011 | |||
| Hugin and panotools | 1 | 2010 | |||
| Hugin/Panotools | 1 | 2009 | |||
| HumanAI | 1 | python, machine learning, c++, data analysis, artificial intelligence | machine learning, artificial intelligence, ai, Arts, Humanities | 2024 | |
| Hydra Ecosystem | 3 | postgresql, python, javascript, javascript, docker, flask, redis, hydra, sql, apis, redis, rest | knowledge graphs, http, web, docker, api, web services, knowledge graph, rest apis, rest apis, hydra, web development, linked data, semantic web | Web | 2021 |
| illumos | 3 | 2013 | |||
| illumos.org | 1 | dtrace, illumos, unix, openzfs, zfs | drivers, virtualization, storage, networking, kernel | Operating Systems | 2017 |
| INCF | 8 | xml, tensorflow, python, javascript, java, gpu, javascript, jupyter, c/c++, gpu, cuda, c++, c++, tensorflow, c/c++, java | neuroimage processing, big data, science, neuroimaging, brain modeling, visualization, bio/neuro image processing, big data, science, neuroscience, brain modelling, neuroscience, neuroimage processing, data visualization, machine learning, data visualization, brain simulation, brain modelling, brain imaging | Science and Medicine | 2024 |
| Inclusive Design Institute | 7 | jquery, php, css, javascript, html5, node.js, html | inclusion, web, inclusivity, web development, web applications, accessibility | End User Applications | 2020 |
| Inclusive Design Institute (IDI) | 1 | 2011 | |||
| Indic Project | 1 | android, python, javascript, rubyonrails, c++ | natural language processing, language techology, input methods | End User Applications | 2016 |
| Inkscape | 15 | python, c++, css, gtk, svg, c++11, c/c++, python 3, gtk+, c++, svg | web, vector graphics, graphics, graphics, geometry, standards, vector graphics, design | Graphics / Video / Audio / Virtual Reality | 2024 |
| Inria Foundation | 1 | c/c++, qt, webassembly, asm, communicationprotocol | medical simulation, medical research, physics, real-time, scientific computing | Science and Medicine | 2018 |
| Institut für Angewandte Informatik (InfAI) e.V. | 1 | java, javascript, a-frame, neo4j, htcvive | virtual reality, software quality, visualization, software analytics, web | Graphics / Video / Audio / Virtual Reality | 2019 |
| Institute for Artificial Intelligence | 4 | unrealengine, python, prolog, lisp, c++, ros | machine learning, simulation, robotics, artificial intelligence, perception, robot perception, unreal engine, knowledge representation | Science and Medicine | 2018 |
| Integrated Ocean Observing System (IOOS) | 1 | python, big data science, ocean technology | open data, data science, earth sciences, data discovery | 2021 | |
| Intel Media and Audio for Linux | 4 | ffmpeg, decode, multimedia, codecs, va-api, c, audio, video, gstreamer, libxcam, soundopenfirmware, vpp, encode, vaapi, hardwareacceleration | video framework, audio firmware, video decoding/encoding, accelerated media, video post processing, compress, camera, 360 stereo video, video, opensource audio firmware, video decode, encoding, video encode, ffmpeg neuronetwork, hardware accelerated media processing, video apis, video processing | Graphics / Video / Audio / Virtual Reality | 2020 |
| Intel Video and Audio for Linux | 2 | opengl, libxcam, Imaging, c/c++, gstreamer, vaapi, ffmpeg, Media, Codec | media, 360 stereo video, imaging, Codec, ffmpeg neuronetwork, graphics / video / audio / virtual reality | 2022 | |
| Interactive Spaces | 1 | 2015 | |||
| Interface Ecology Lab @ Texas A&M University | 2 | 2012 | |||
| InterMine | 2 | r, python, clojure, postgresql, javascript, java | biology, data science, open science, genomics, data visualisation, open science, web, biology, bioinformatics | Science and Medicine | 2019 |
| International Catrobat Association | 4 | android, javascript, swift, kotlin, flutter, php | creativity tools, mobile programming, visual programming, game engines, education | 2024 | |
| International GeoGebra Institute | 4 | 2015 | |||
| International Neuroinformatics Coordinating Facility | 6 | python, javascript, c++, gpu, java | neuroscience, visualization, data science, big data, simulation | Science and Medicine | 2016 |
| Internet Archive | 7 | elasticsearch, elasticsearch, python, pthon, php, javascript, javascript, node.js, hadoop, golang, go | non-profit, voice apps, archiving, archive, web archving, web extensions, web archiving, library, books, web archives, media, archiving | Web | 2024 |
| Internet Health Report | 3 | apache kafka, python, VueJS, javascript | routing, data analytics, internet, networking, communication | 2024 | |
| Internet Systems Consortium | 2 | dhcp, python, mysql, javascript, c/c++, c99, cassandra, rest | dhcp, dns, stateful, ipv6, networking, internet, infrastructure | Other | 2019 |
| Invesalius | 2 | dicom, python, Vtk, numpy, cython | medical imaging, 3D Reconstruction, ehealth, 3d printing, Neuronavigation | 2024 | |
| IOOS | 2 | python, javascript, java, Scientific Python, ocean science | data science, open data, Oceanography, data management | 2024 | |
| Iowa Flood Center | 1 | 2013 | |||
| IP-over-P2P Project | 1 | 2015 | |||
| iPXE | 1 | 2012 | |||
| Isabelle | 1 | 2011 | |||
| Italian Mars Society | 2 | 2014 | |||
| Ivy (lets-unify.ai) | 1 | python, cython, tensorflow, pytorch, Jax | machine learning, artificial intelligence, computation graph, code conversion, unified API | 2023 | |
| JabRef | 1 | java, javafx, latex | academia, reference manager, bibtex, pdf | End User Applications | 2019 |
| JabRef e.V. | 3 | latex, typescript, javafx, bibtex, ai, java | latex, bibliography, science, library, literature | 2024 | |
| Jato | 1 | 2009 | |||
| Jato VM | 1 | 2011 | |||
| Java PathFinder | 1 | android, java, distributed systems, jvm | model checking, symbolic execution, verification of concurrent systems, program analysis, jvm | 2021 | |
| Java Pathfinder Team | 1 | java, jvm, android, distributedsystems | program analysis, testing, verification, model checking, environment generation | Programming Languages and Development Tools | 2016 |
| JBoss Community | 11 | aerogear, asciidoctor, cloud, react, android, apachekafka, ios, golang, kubernetes, mobil, kubernetes, node.js, opentracing, ide, rust, golang, java | aerogear, iot, programming languages and development tools, mobile development, messaging, codeuino, kubernetes, database, eclipse, kubernetes, enterprise applications, testing, javaee, cfc, microservices, mobile, iot, machine learning, monitoring, enterprise application, cloud, cloud, openshift, microservices | Web | 2022 |
| JdeRobot | 3 | python, ros, gazebo, opencv, tensorflow | robotics, artificial intelligence, computer vision, education, developer tools | 2024 | |
| JdeRobot - Universidad Rey Juan Carlos | 6 | python, ros, gazebo, opencv, opencv, c/c++, c++, ros, gazebo, tensorflow | computer vision, robotics, education, teaching, artificial intelligence, robotics, computer vision, developer tools, robot simulator, education, developer tools | Other | 2021 |
| Jenkins | 3 | java, javascript, docker, kubernetes, go | devops, continuous integration, continuous delivery, automation, developer tools | 2024 | |
| Jenkins Project | 4 | machinelearning, docker, css, go, javascript, html, kubernetes, groovy, java, jenkins | continuous integration, continuous delivery, devops, development tools, development, developer tools, automation, java | Programming Languages and Development Tools | 2020 |
| Jenkins X | 1 | golang, kubernetes, gitops | cloud, CI/CD | 2022 | |
| JGraphT | 1 | java | graphs, algorithms, data structures, mathematics, network analysis | Programming Languages and Development Tools | 2018 |
| Jikes RVM | 3 | 2012 | |||
| Jina AI | 1 | python, machine learning, microservices, data science, Multimodel AI | cloud native, neural search, generative AI, Python MLOps Framework, Mulitmodel Data | 2023 | |
| Jitsi | 5 | xmpp, java, webrtc, javascript, react, sip, webrtc, react, reactnative, java, kotlin | web, multimedia, multimedia, real time communications, video, networking, real time, video conferencing, video conferencing, WebRTC | Social / Communications | 2024 |
| Jitsi (SIP Communicator), Kamailio and SEMS | 1 | 2011 | |||
| jMonkeyEngine | 1 | 2014 | |||
| Joomla! | 8 | html/css, css, jquery, php, css, mysql, javascript, html5/css3, javascript, cms, html, html, php | mvc, programming languages, web development, web, cms, object-oriented, programming languages, object-oriented, web application, cms, web development, web applications, web applications | Web | 2022 |
| Joomla! (Open Source Matters) | 2 | 2014 | |||
| Joplin | 4 | electron, React-Native, typescript, react native, javascript, electron, react, terminal-kit, node.js, react, reactnative, node.js | cross-platform, sharing, encryption, notes, synchronisation, note-taking, sharing, encryption, notes, synchronisation, search, database, office | End User Applications | 2024 |
| jQuery Foundation | 2 | jquery, css, javascript, html5 | framework development, user interface components, unit testing, software testing, event handling | 2016 | |
| JRuby | 2 | 2013 | |||
| JSK Robotics Laboratory | 2 | openhrp, openrtm, prolog, lisp, ros, euslisp | robotics, artificial intelligence | Science and Medicine | 2017 |
| JSK Robotics Laboratory / The University of Tokyo | 2 | ros, lisp | robotics, ros | Science and Medicine | 2019 |
| JSON Schema | 1 | python, javascript, typescript, .net, JSON Schema | web, apis, standards, data validation, developer tooling | 2024 | |
| K-9 Mail | 2 | android, java | communication, email | End User Applications | 2017 |
| Kapitan | 2 | jinja2, python, terraform, python3, jsonnet, kubernetes | great developer tooling, programming languages, cloud, kubernetes, cloud | Programming Languages and Development Tools | 2020 |
| Kart Project | 1 | python, c++, git, gis | version control, gis, data, point clouds, spatial | 2022 | |
| KDE | 9 | qt5, cmake, php, qt, c++ | communication, desktop applications, wiki, desktop application, science, graphics, mobile, education, desktop | End User Applications | 2017 |
| KDE Community | 7 | qt5, qml, qt, opencv, c, c++, c/c++, qt, c++, data structures, qml, opengl | vr, desktop environment, deskstop, science, privacy, art, desktop application, science, graphics, applications, education, desktop environment, applications | End User Applications | 2024 |
| Keploy | 2 | c, MERN, node, epbf, golang | API Testing, Dev Tool, No code platform, Mock and Stubs Generation, Functional Testing | 2024 | |
| Keptn | 1 | golang, kubernetes, angular, Helm | cloud, devops, sre, CloudNative, Operations | 2022 | |
| Kernel.org - the Linux Kernel Organization | 3 | 2012 | |||
| Kiwix | 6 | nodejs, kotlin, python, typescript, c/c++, qt, python3, javascript, c/c++, node.js, kotlin, c++, android, c++, vue.js, java | offline access, compression, offline, android, browser | Web | 2024 |
| KNIME | 1 | javascript, java, tensorflow | data analytics, data science, machine learning, deep learning, image processing | Data and Databases | 2019 |
| Kodi | 2 | opengl, sqlite, python, ffmpeg, c++ | video, tv, audio, games, media | 2022 | |
| Kodi Foundation | 2 | python, ffmpeg, mysql, sqlite, c++ | games, media, audio, video | End User Applications | 2020 |
| KolibriOS | 1 | fasm, flatassembler, x86assembly, i386, i586 | desktop, operating systems, drivers, hardware, lowlevel | Operating Systems | 2016 |
| KolibriOS Project Team | 2 | asm, fasm, c, assembly, pci | low-level, OS, kernel, operating system, drivers | 2024 | |
| Komodo OpenLab | 1 | 2012 | |||
| Komodo OpenLab Inc. | 1 | 2011 | |||
| Kotlin Foundation | 2 | jvm, Parsers & Compilers, Multiplatform, gradle, kotlin | compilers, programming languages, libraries, software development, Programming & Build Tools | 2024 | |
| Kubeflow | 2 | tensorflow, python, typescript, jupyternotebook, kubernetes, kubernetes, kustomize, YAML, go | machine learning, AI/ML, cloud, generative AI, kubernetes, kubernetes, infrastructure | Cloud | 2024 |
| KubeVirt | 2 | golang, grpc | kubernetes, virtualization, containers | 2024 | |
| LabLua | 9 | elasticsearch, lua, luarocks, pallene, céu, netbsd, kernel, pallene, lua, linux, lunatik, céu | programming languages, distributed systems, reactive languages, compilers, scripting languages, kernel scripting, reactive programming, reactive programming, kernel scripting, scripting languages, statically-typed languages, scripting, operating systems | Programming Languages and Development Tools | 2024 |
| Laboratory for Cosmological Data Mining | 1 | 2014 | |||
| LanguageTool | 1 | 2011 | |||
| languagetool.org | 1 | java, javascript, machinelearning, ai, tensorflow | artificial intelligence, language, edtech, education, nlp | End User Applications | 2018 |
| LAPPIS | 1 | python, machine learning, ruby on rails, jupyter hub | web development, devops, innovation, Social participation, mentoring | 2024 | |
| LEAP Encryption Access Project | 3 | qt5, python, ansible, javascript, gnupg, docker, openvpn, java, golang, twisted | vpn, encryption, vpn, privacy, e2e, mail, Circumvention | End User Applications | 2022 |
| Learning Equality | 4 | django, python, vue.js, javascript | education, learning, offline, distributed databases | 2024 | |
| Learning Unlimited | 1 | 2011 | |||
| Learning Unlimited, Inc. | 1 | 2012 | |||
| Libav | 1 | 2012 | |||
| libcamera | 3 | qt5, linux kernel, v4l2, c/c++, gstreamer | image processing, image prcessing, camera | 2023 | |
| Libre Space Foundation | 3 | django, python, django, raspberrypi, arduino, c/c++, embedded, machine learning, sdr, embedded systems, sdr, spaceapplications | space standards, satellite data, space standards, orbital dynamics, spacecraft, hardware, satellite data, software defined radio, web applications, space applications, cubesats | Science and Medicine | 2021 |
| LibreCube Initiative | 3 | python, rest api, zmq, mbed, micropython | space, mission control, space, Communication Protocols, automation, Rover, cubesat | 2024 | |
| LibreHealth | 7 | android, python, javascript, mysql, php, java, python3, javascript, php, webcomponents, dart/flutter, android, java | global health, web apps, ictd, deep learning, web, radiology, hfoss, medicine, mobile apps, web apps, deep learning, information security, mobile-apps, radiology, health | Science and Medicine | 2023 |
| LibreOffice | 14 | python, java, c++, android, c++, opengl, java | end-user application, end user applications, office suite, desktop application, big project, end user application, desktop application, cloud, android, end user application | End User Applications | 2024 |
| libssh | 3 | ssh, c, ci | security, cryptography | 2024 | |
| Libvirt | 9 | virtualization, xen, python, kvm, qemu, hypervisor, c, hypervisor, containers, qemu, lxc, lxc, kvm | libraries, virtualization, virtual machine, cloud, library, container, library | Cloud | 2024 |
| LimeSurvey | 3 | 2011 | |||
| Linaro | 1 | 2014 | |||
| Linkerd | 2 | react, rust, golang, prometheus, kubernetes, linkerd | service mesh, containers, dev-ops, networking, networking, kubernetes, cloud infrastructure, cloud native, microservices | Cloud | 2020 |
| Linux Trace Toolkit next generation project (LTTng) | 2 | 2014 | |||
| Liquid Galaxy Project | 13 | gis, nodejs, python, cesiumjs, cesium, ros, arduino, android, vue, linux, flutter, nodejs, javascript, machinelearning, html, java, mapsapi, Google Earth, java, android | google earth, geo, visualisation, webvr, geospatial, cluster, data, ux, visualization, maps, maps, cluster, virtual reality, linux, machine learning, data visualization, artificial intelligence, networking, graphics | Graphics / Video / Audio / Virtual Reality | 2024 |
| LLVM Compiler Infrastructure | 11 | llvm, clang, clang, mlir, c++ | compiler, programming languages and development tools, compilers, code analysis, libraries, development tools, compiler api | Programming Languages and Development Tools | 2024 |
| lmonade: scientific software distribution | 3 | 2015 | |||
| lowRISC | 4 | python, fpga, risc-v, systemverilog, linux, chisel, c++, verilog | embedded hardware, fpga, compilers, system-on-chip, open hardware, hardware, debug, soc, education, security | Other | 2020 |
| LuaRocks | 3 | windows, luarocks, c, lua, linux, unix | programming languages, programming tools, package managers, package management, package manager, games, programming language | Programming Languages and Development Tools | 2019 |
| LXDE Project | 1 | 2010 | |||
| LyX – The Document Processor | 2 | 2014 | |||
| Machine Learning for Science (ML4SCI) | 3 | python, artificial intelligence, machine learning, c++, data analysis | machine learning, algorithms, physics, science and medicine, astronomy | 2024 | |
| Machine Learning for Science (ML4SCI) Umbrella Organization | 1 | python, c/c++, machine learning, data analysis, artificial intelligence | machine learning, science and medicine, algorithms, physics, astronomy | 2021 | |
| MacPorts | 3 | python, buildbot, web, tcl, c, scripting | build tools, libraries, package management, macos, operating systems | End User Applications | 2020 |
| Maemo Community | 2 | 2010 | |||
| Mantis | 1 | java, Rxjava, Akka, Netty | cloud, distributed systems, Operational Analytics | 2023 | |
| MapAction | 1 | python, data analysis, gis, apache airflow, visualization | humanitarian, maps, geospatial, data processing, google cloud | 2021 | |
| Mapnik | 2 | 2011 | |||
| MariaDB | 8 | python, mysql, perl, javascript, mariadb, c, databases, c++, perl, c/c++, java | databases, database, SQL Features, Database Engines | Data and Databases | 2024 |
| MariaDB Foundation | 4 | mariadb, mysql, mariadb, c, python, c++, c++, mysql, java | sql, performance, distributed systems, performance, databases, sql, cloud, database | Data and Databases | 2021 |
| Marine Biological Laboratory - Center for Library and Informatics | 1 | 2011 | |||
| Marine Biological Laboratory Biodiversity Informatics Group-Encyclopedia of Life Project | 1 | 2010 | |||
| Maryland Institute for Technology in the Humanities | 1 | 2013 | |||
| Mathesar | 2 | postgresql, django, python, javascript, svelte | data, self-hosted, nonprofit, databases, web | 2023 | |
| Matrix | 1 | python, javascript, rust, go, react | encryption, realtime communication, decentralised, team chat, chat | Social / Communications | 2020 |
| Matrix.org | 6 | nodejs, python, javascript, postgresql, decentralisation, go, javascript, react, ios, golang, rust, android, c++ | iot, realtime communications, interoperability, collaboration, json, real time, instant messaging, decentralisation, Secure Messaging, real time communications, voip, communications, decentralization, team chat, communication, decentralized, decentralisation, real time, federated | Social / Communications | 2022 |
| Mautic | 1 | mysql, php, symfony | DXP, Marketing, Marketing Automation, Digital Marketing, Digital Experience Platform | 2024 | |
| Mayor’s Office of New Urban Mechanics | 2 | ruby, python, tensorflow, javascript | web, civic tech, machine learning, analytics, gis | 2023 | |
| Mayor’s Office of New Urban Mechanics (City of Boston) | 1 | python, javascript | web, machine learning, gis, civic tech | 2021 | |
| MBDyn | 5 | c++, python, c/c++, c++ | multibody dynamics, multibody dynamics, Structural engineering, numerical methods, aeroelasticity, aerospace, simulation, computational mechanics, scientific computing, engineering, scientific computing, robotics, science, mechanics, multiphysics, automotive, aeronautics, mechanical engineering | Science and Medicine | 2024 |
| MBDyn - Multibody Dynamics | 1 | python, c++, scripting | mechanical engineering, aeronautics, multibody dynamics, aerodynamics, linear algebra | Science and Medicine | 2019 |
| MBDyn, Department of Aerospace Engineering at the Polytechnic University of Milan | 1 | 2015 | |||
| MBDyn, Department of Aerospace Science and Technology at Politecnico di Milano | 1 | c++ | physics, engineering, simulation, robotics, real time | Science and Medicine | 2016 |
| McGill Space Institute | 1 | python, sql, databases, bigdata | space, astronomy | Science and Medicine | 2016 |
| MDAnalysis | 5 | cython, python, numpy, c/c++, cython, c/c++ | materials, molecular dynamics, high-performance-computing, biochemistry, computational-chemistry, soft matter physics, simulation, soft-matter-physics, science, molecular-simulation, biophysics, molecular simulation, computational chemistry, cheminformatics, trajectory analysis | Science and Medicine | 2024 |
| Measurement Lab | 1 | 2012 | |||
| Measurement Lab (M-Lab) | 1 | 2013 | |||
| MEDES-IMPS | 1 | 2015 | |||
| Media Cloud | 1 | python, postgresql, javascript, react, docker | research, media, news-media, media-analytics, civic-tech | 2021 | |
| MediaPipe | 1 | python, javascript, android, c++, ios | machine learning, computer vision, deep learning, real-time, ml-inference | 2021 | |
| Melange | 6 | 2014 | |||
| Mercurial | 1 | 2013 | |||
| Mercurial (a member of the Software Freedom Conservancy) | 1 | 2009 | |||
| Mercurial Distributed Version Control System | 1 | 2010 | |||
| MetaBrainz Foundation | 2 | python, perl, postgresql, javascript | machine learning, music, big data, books, metadata | Data and Databases | 2016 |
| MetaBrainz Foundation Inc. | 14 | postgresql, postgres, python, perl, postgresql, javascript, react, machine learning, react, spark, rust, bigquery, perl, postgres, solr, spark | machine learning, music, open data, big data, community, music, music social network, databases, books, hosting, metadata, open data, data, books | Data and Databases | 2024 |
| MetaCall | 4 | nodejs, python, javascript, cmake, docker, guix, c++, rust, c/c++ | polyglot, programming languages, ffi, foreign function interface, cross-platform, languages, cloud, faas, development tools | 2024 | |
| Metalink | 1 | 2012 | |||
| Metasploit | 6 | postgresql, python, ruby, postgresql, c, python, assembly, asm, ruby, assembly | penetration testing, offensive security, exploitation, penetration testing, exploitation, security, offensive security | Security | 2023 |
| MGGG Redistricting Lab | 2 | gis, julia, python, statistics, javascript, julia, javascript, mapping, gis | statistics, civic tech, graph algorithms, mapping and surveying, mapping, civic tech, graph algorithms, web-interface | End User Applications | 2021 |
| Micro Electronics Research Lab - UITU | 3 | RISCV, Hardware, systemonchip, Processor, memory | iot, embedded, Processor, System on Chip, RISC-V | 2024 | |
| Microkernel devroom | 1 | c, c++, rust, arm, x86 | microkernel, components, ipc, desktop, virtualization | Operating Systems | 2017 |
| Mifos | 1 | 2009 | |||
| Mifos (The Community for Open Source Microfinance) | 1 | 2013 | |||
| Mifos Initiative | 3 | mysql, spring, javascript, angularjs, android, java | fintech, digital financial services, microfinance, big data, mobile banking, cloud, mobile, financial inclusion | End User Applications | 2017 |
| MINIX 3 | 2 | 2012 | |||
| MINIX 3 Group at the VU | 1 | 2010 | |||
| MINIX 3 Research group at the Vrije Universiteit in Amsterdam, The Netherlands | 1 | 2011 | |||
| MinnowBoard Project | 1 | 2015 | |||
| MIT App Inventor | 7 | junit, java, app, javascript, swift, googleappengine, javascipt, googlewebtoolkit, gwt, android, gwt, java | blockchain, iot, android, programming languages and development tools, mobile, web, education, api, ios, mobile apps, mobile, development, development tools, education, apps | Programming Languages and Development Tools | 2024 |
| MIT Center for Mobile Learning @ The Media Lab | 1 | 2012 | |||
| MIT Media Lab | 2 | android, html/javascript, java | education, educational technology | End User Applications | 2016 |
| Mixxx | 5 | deeplearning, qt, javascript, qt, c++, c++ | streaming, dj, music, streaming, music information retrieval, dj | End User Applications | 2024 |
| Mixxx Digital DJ | 1 | 2010 | |||
| Mixxx DJ Software | 6 | music, hid, qt, audio, midi, c++, c++11, real-time, opengl | music, art, audio, metadata, real time, dj, beatdetection, dsp | Graphics / Video / Audio / Virtual Reality | 2018 |
| mlpack | 8 | C++ template metaprogramming, deeplearning, python, machinelearning, openmp, templates, c++ | machine learning, deep learning, linear algebra, reinforcement learning, fast algorithms, algorithms, data science, neighbor-search, embedded, Neural networks, reinforcement learning, ai, data science, data mining, deep learning, optimization | Data and Databases | 2024 |
| mlpack: a scalable C++ machine learning library | 1 | c++ | machine learning, data mining, fast algorithms | Science and Medicine | 2016 |
| mlpack: scalable C++ machine learning library | 2 | 2014 | |||
| MLton.org | 1 | 2013 | |||
| Mobile Robot Programming Toolkit (MRPT) | 3 | python, webs, cmake, qt, opencv, c/c++, c++, ros, opengl, wxwidgets | computer vision, algorithms, vision, ai, webapps, mobile robots, slam, robotics, robot, selfdriving, real-time | Science and Medicine | 2018 |
| ModSecurity | 1 | waf, webapplicationfirewall | web application security | Security | 2016 |
| MoinMoin | 1 | 2011 | |||
| MoinMoin Wiki | 4 | 2013 | |||
| Moira | 2 | graphite, grafana, typescript, javascript, react, golang | monitoring, alerting, devops, devops, devtools, sre | Programming Languages and Development Tools | 2020 |
| moja global | 1 | python, javascript, c++, docker, Data-Science | climate monitoring, nature based solutions, land system modelling | 2022 | |
| Monado | 1 | opengl, vulkan, openxr, Graphics, XR | vr, xr, AR | 2022 | |
| Monkey HTTP Daemon | 1 | 2012 | |||
| Monkey Project | 2 | 2014 | |||
| Mono Project | 7 | c#, f#, c, .net | compiler, mobile development, programming tools, web development, ide | Programming Languages and Development Tools | 2017 |
| Moodle | 10 | jquery, php, mysql, postgresql, javascript, angular, sql, ionic | e-learning, education, school systems, web application, school system, web applications, web applications, learning management, education | Social / Communications | 2019 |
| MoveIt | 5 | python, robotics, ros, c++, c/c++, c++, python 3, rust, ros | robotics, motion planning, trajectory generation, kinematics | Other | 2024 |
| MovingBlocks | 3 | json, lwjgl, blender, github, opengl, gradle, java | game, sandbox, voxel, games, minecraft, modding | End User Applications | 2018 |
| Mozilla | 10 | html/css, python, js, css, javascript, react, rust, html5, webdevelopment, c++, html | open web, firefox, web, web technologies, web browser, privacy/security, open source, browser, internet, devtools, mozilla, internet freedom, free software, education, web platform and services, information security | Web | 2020 |
| Mozilla Project | 1 | 2009 | |||
| MuseScore | 11 | qt5, qml, cpp, cmake, breakpad, qt, cmake, c/c++, midi, qt, c++, qml, c++11 | end user applications, music, guitar, audio, musicxml, sheet music, engraving, musicxml, composing, midi, notation software, user interface, midi, music notation, sheet music, music engraving, notation, piano, notation, music notation | End User Applications | 2024 |
| mypy | 2 | python | compiler, static code analysis‎, compilers | Programming Languages and Development Tools | 2021 |
| mySociety | 1 | 2012 | |||
| MySQL | 1 | 2009 | |||
| MZmine | 2 | javafx, javafx, java | visualization, biochemistry, mass spectrometry, molecular networking, molecular analysis, mass spectrometry, feature detection, ion mobility, data processing | Science and Medicine | 2022 |
| MZmine and MS-DIAL | 1 | java, c#, javafx | data science, graphics, cheminformatics, mass spectrometry, feature detection | 2023 | |
| Named Data Networking Project | 1 | java, android, javascript, c++14, c# | networking, informationc centric networking, ipfs | Web | 2019 |
| National Center for Supercomputing Applications | 1 | 2009 | |||
| National Evolutionary Synthesis Center | 1 | 2012 | |||
| National Evolutionary Synthesis Center (NESCent) | 2 | 2013 | |||
| National Library of the Czech Republic | 1 | 2013 | |||
| National Resource for Network Biology (GenMAPP, Cytoscape and WikiPathways) | 1 | 2011 | |||
| National Resource for Network Biology (NRNB) | 12 | r, python, web, javascript, php, java, r, rest, javascript, c/c++, c++, html, xml, html, java | biology, data science, web application, graphics, database, network biology, systems biology, scientific computing, scientific computing, web, data modeling, bioinformatics, network analysis, dataviz, data visualization, ui/ux, data science, network biology, graphics, web applications | Science and Medicine | 2024 |
| Native Client | 1 | 2009 | |||
| Natural User Interface Group | 3 | 2012 | |||
| Natural User Interface Group (NUI Group) | 1 | 2010 | |||
| Navidrome | 1 | react, golang, ffmpeg | web, music, streaming | 2021 | |
| Neovim | 3 | python, rpc, c, javascript, vim, lua | cross-platform, editor, programming, system programming, text editor, vim, tools, developer tools, cross platform | Programming Languages and Development Tools | 2020 |
| NESCent - National Evolutionary Synthesis Center | 2 | 2010 | |||
| Netfilter Project | 6 | firewall, linuxkernel, c, kernel, networking, linux | network security, computer networking, firewall, software defined networking, network monitoring, networking, linux kernel | Operating Systems | 2019 |
| NetSurf | 2 | 2014 | |||
| Netty | 1 | java, jni, c | nonblocking, network, async | Web | 2020 |
| Network Time | 1 | 2012 | |||
| Network Time Foundation | 2 | 2015 | |||
| Neutralinojs | 2 | typescript, javascript, c, node.js, c++ | Application Development, framework, cross-platform, desktop | 2024 | |
| New Visions for Public Schools | 1 | 2012 | |||
| Nightwatch.js | 1 | javascript, selenium, node.js, typescript, WebDriver | unit testing, Functional Testing, End-To-End Testing, Component testing, Native mobile app testing | 2024 | |
| Ninux.org | 1 | 2012 | |||
| NixOS Foundation | 1 | git, nix | declarative, reproducible, InfrastrucutreAsCode | 2024 | |
| Nmap Security Scanner | 9 | python, c, lua, c/c++, c++ | network mapping, ipv6, networking, linux, security | Security | 2017 |
| NTP | 1 | 2011 | |||
| NTP Project | 1 | 2009 | |||
| NumFOCUS | 10 | julia, r, python, javascript, r, julia, javascript, c/c++, c++, c++, c/c++ | machine learning, data visualization, numerical computing, data science, high performance computing, big data, pydata, scientific computing, data science, scientific computing, numerical computation, graphics, graphics, numerical computation, statistical computing | Science and Medicine | 2024 |
| NV Access | 2 | python, uiautomation, win32api, iaccessible2, c++ | screen reader, text to speech, text to speech, blindness, blindness, screen reader, braille, braille, accessibility | Other | 2020 |
| OAR | 2 | 2010 | |||
| OGDF - Open Graph Drawing Framework | 3 | 2014 | |||
| OGRE | 1 | 2009 | |||
| OGRE (Object-Oriented Graphics Rendering Engine) | 2 | 2013 | |||
| OGRE - Open Source 3D Graphics Engine | 1 | 2011 | |||
| omegaUp | 3 | typescript, python, mysql, vue.js, php | web, cloud, education, edtech, UX/UI | 2024 | |
| omegaUp.com | 1 | php, mysql, python | cs education, education, web community | Web | 2018 |
| OMII-UK | 2 | 2010 | |||
| OncoBlocks | 1 | 2015 | |||
| Open Bioinformatics Foundation | 9 | haskell, python, ruby, perl, php, javascript, javascript, c, python, c/c++, react, c++, c++, java, d, biojs | computational biology, bioinformatics, genomics, web, bioinformatics, workflows | Science and Medicine | 2021 |
| Open Bioinformatics Foundation (OBF) | 2 | python, javascript, javascript, html/css, c/c++, c++, Git/GitHub | computational biology, open science, bioinformatics, genomics, Open Source Bioinformatics, bioinformatics, workflows | Science and Medicine | 2022 |
| Open Chemistry | 9 | opengl, c++14, python, javascript, javascript, c++, c/c++, c++, html, java, opengl, webgl, c++17 | chemistry, scientific visualization, visualization, data science, scientific visualization, quantum chemistry, scientific computing, materials science, data science, science, graphics, graphics, cheminformatics, computational chemistry, cheminformatics | Science and Medicine | 2024 |
| Open Chromosome Collective | 1 | python, numpy, scikit-learn, pandas, HDF5 | machine learning, genomics, bioinformatics, data science, python | 2024 | |
| Open Climate Fix | 1 | python, pytorch | Forecasting, Climate, renewables | 2024 | |
| Open Data Kit | 3 | python, ruby, javascript, android, java | global health, global development, mobile, global development, social good, cloud, global health, mobile, social good | End User Applications | 2019 |
| Open Detection | 2 | cmake, pcl, opencv, c/c++, caffe, c++ | machine learning, computer vision, ai | Other | 2017 |
| Open Education Resource Foundation | 1 | 2014 | |||
| Open Ephys | 1 | c++, juce | neuroscience, electrophysiology, visualization, ui, signal processing | Science and Medicine | 2016 |
| Open Food Facts | 2 | python, machinelearning, perl, machine learning, mongodb, ios, flutter, android, perl, tensorflow | computer vision, environment, mobile, food, crowdsourcing, food, open data, health, health | Science and Medicine | 2022 |
| Open Genome Informatics | 6 | neo4j, html/javascript, python, nodejs, javascript, graph, javascript, react, r-project, angular, react, mysql, java, r-project, neo4j, gwt | data and databases, data and databases, biology, computational biology, bioinformatics, genome, genomics, genomics, computational biology, databases, data mining, bioinformatics, data visualisation, biology, data discovery | Science and Medicine | 2023 |
| Open HealthCare Network | 1 | python, django, react, typescript, NextJs | electronic medical records, Digital Public Goods, Pandemic Response and Management, Telemedicine and Remote Care, AI in Health | 2024 | |
| Open Lighting Project | 3 | 2014 | |||
| Open Motion Planning Library | 1 | 2014 | |||
| Open Networking Lab | 1 | 2013 | |||
| Open Roberta | 3 | python, typescript, java, javascript, c++, go, java | robotics, web, education, visual programming, robotics, web, visual programming, education | Programming Languages and Development Tools | 2021 |
| Open Roberta Lab | 1 | java, javascript | education, programming, robotics | Web | 2018 |
| Open Robotics | 4 | Open-RMF, python, ros, gazebo, ignition, ros, c/c++ | fleet management, robotics, simulation | 2024 | |
| Open Science Initiative for Perfusion Imaging | 1 | python, github | data visualization, data analysis, medical imaging, reproducible science | 2024 | |
| Open Source Computer Vision Library | 1 | 2010 | |||
| Open Source Computer Vision Library (OpenCV) | 5 | 2015 | |||
| Open Source Robotics Foundation | 7 | python, javascript, c/c++, c++, ros, gazebo | robotics, middleware, simulation | Programming Languages and Development Tools | 2020 |
| Open States | 2 | python, graphql, django, postgresql, javascript, react | journalism, web, civic tech, scraping, government, civic | Other | 2018 |
| Open Technologies Aliance - GFOSS | 1 | python, javascript, gtk, qt, arduino | robotics, programming languages, open education, c- c+, java | Programming Languages and Development Tools | 2019 |
| Open Technologies Alliance - GFOSS | 4 | nodejs, python, mysql, php, javascript, virtuoso, Machine Learning (ML), python 3, c/c++, java | robotics, web, Artificial Inteligence, c++, cloud, hardware, data, open hardware | Other | 2024 |
| Open Transit Software Foundation | 1 | android, java, swift, docker, ios | apps, Transit, travel, bus | 2024 | |
| Open3D team | 1 | python, c++, cuda, tensorflow, pytorch | 3D machine learning, 3D data processing, 3D visualization, physically based rendering | 2022 | |
| Open64 | 1 | 2009 | |||
| OpenAFS | 3 | ansible, c, python, git, filesystems | network, filesystems, testing, storage | 2022 | |
| OpenAstronomy | 9 | julia, python, javascript, numpy, qt, julia, c, javascript, python, numba, numba, spark, c++, spark | solar physics, astronomy, visualization, high energy astrophysics, orbital mechanics, data science, astrophysics, visualisation, high-energy astrophysics, science, solar physics, image processing, astronomy, astrophysics, atomic physics, cloud infrastructure, high energy astrophysics | Science and Medicine | 2024 |
| Opencast Matterhorn | 1 | 2012 | |||
| OpenCensus | 1 | python, java, ruby, node, go | tracing, monitoring, c++, php | Cloud | 2018 |
| OpenChange (a project of the Free Software Conservancy) | 1 | 2009 | |||
| OpenCog Foundation | 1 | 2012 | |||
| OpenCog sponsored by the Singularity Institute for Artificial Intelligence | 1 | 2009 | |||
| OpenCV | 8 | opengl, python, machinelearning, deeplearning, deep learning, vision, computervision, python3, javascript, c++, c/c++, cuda, cuda, c++, python 3, ai | machine learning, computer vision, deep learning, robotics, ai, vision, virtual reality, virtual reality, robotics, deep learning, graphics, real time, computer vision, real time | Graphics / Video / Audio / Virtual Reality | 2024 |
| OPeNDAP, Inc. | 1 | 2010 | |||
| OpenELIS Global | 1 | postgresql, javascript, java, react, spring | Health Care, Laboratory Information System | 2024 | |
| OpenEMR | 1 | php, mysql, javascript, docker, html | medical records, health, cloud, medicine, medical practice management solution | Science and Medicine | 2020 |
| OpenFlowHub | 1 | 2012 | |||
| OpenHMD | 1 | c99, opengl, vulkan, opencv, libusb | virtual reality, xr, drivers, reverse engineering, computer vision | Graphics / Video / Audio / Virtual Reality | 2020 |
| OpenICC | 3 | 2012 | |||
| OpenICC Color Management | 1 | 2011 | |||
| OpenImageIO | 4 | 2012 | |||
| OpenInkpot project | 1 | 2010 | |||
| OpenIntents | 2 | 2012 | |||
| OpenKeychain (OpenPGP for Android) | 3 | openpgp, android | encryption, security, e-mail | Security | 2016 |
| OpenMined | 2 | federatedlearning, securemulti-partycomputation, deeplearning, python, javascript, hyperledger aries, homomorphicencryption, pytorch, rust, differentialprivacy | differential privacy, structured transparency, privacy, artificial intelligence, federated learning, encrypted computation | Other | 2021 |
| OpenMRS | 16 | xml, html/css, android, mysql, spring, javascript, java, spring, javascript, rest, html5, reactjs, hibernate, android, groovy, fhir, java | open source medical records, hospitals, ehealth, developing countries, Electronic Medical Record System, open source, platform, health, developing world, clinics, medical records, science and medicine, clinical, open source, electronic medical records, QA automation, medical record, developing countries, frontend | Science and Medicine | 2024 |
| OpenNebula | 1 | 2010 | |||
| OpenNMS | 3 | 2013 | |||
| OpenRefine | 2 | java, javascript, java | data visualization, data-wrangling, reconcilation, data integration, web application, data-mining, real-time | Data and Databases | 2024 |
| OpenSIPS | 1 | c, python, mysql, scripting | voip, telephony, real-time-communications, sip | Social / Communications | 2018 |
| OpenSSH | 1 | 2009 | |||
| OpenStreetMap | 14 | postgresql, python, docker, javascript, ruby, java, javascript, c/c++, ruby, c++, java, postgis, opengl, sql | gis, crowdsourcing, geoinformatics, routing, geoinformatics, maps, crowdsourcing, databases, maps, web, ui, geodata, gis, open data | Data and Databases | 2024 |
| openSUSE | 6 | html/javascript, rubyonrails, docker, ruby, rubyonrail, perl, javascript, angularjs, c/c++, angular.js, linux | conferences, virtualization, linux distribution, configuration management, ui/ux, packaging, realtime, web, linux, web development, qa | Operating Systems | 2018 |
| openSUSE Project | 7 | python, perl, artificial intelligence, javascript, rpm, linux, linux, go, ruby, kubernetes, reactjs javascript, rust, c/c++ | build tools, containers kubernetes, operating system developer tools, software quality, Security Cryptography, devops, containers, containers, tools, AIML, systems management, software quality, developer tools, operating systems | Operating Systems | 2024 |
| OpenVINO Toolkit | 3 | x86, c++, python | deep learning, inference, ai, neural network, gen ai | 2024 | |
| Openwall | 3 | 2015 | |||
| Openwall Project | 1 | 2011 | |||
| OpenWISP | 8 | lua, django, python, javascript, django, raspberrypi, javascript, ansible, lua, linux, openwrt, openwrt | iot, telecom, hotspot, wifi, mesh-networks, mesh, sdn, vpn, wireless networks, web, network automation, wireless, web development, configuration management, telecommunications, wifi, network visualization, networking, networking, network management system, configu | Web | 2024 |
| OpnTec | 1 | python, javascript, emberjs, cloud, android | open event, event solutions, web | Social / Communications | 2018 |
| Oppia Foundation | 9 | kotlin, css, typescript, python, css, google app engine, javascript, angularjs, googleappengine, Apache Beam, angular, angular, webpack, appengine, kotlin | web, social impact, ai, nonprofit, tools, educational technology, community, tools, web, interactive, web development, community, education, interactive | Web | 2024 |
| Opticks | 1 | 2010 | |||
| Orange – Data Mining Fruitful & Fun | 3 | cython, python, machinelearning, qt | machine learning, gui toolkit, visualization, data mining, bioinformatics | Science and Medicine | 2016 |
| Orcasound | 3 | python, javascript, raspberry pi, raspberrypi, elixir, GitHub Actions, javascript, NextJs, react, elixir, react, ffmpeg | machine learning, web, scientific visualization, citizen science, audio analysis, audio, acoustics, web application, real-time, citizen science, audio, community science, real-time, ai | Science and Medicine | 2022 |
| Oregon State University Open Source Lab | 2 | 2010 | |||
| Oregon State University Open Source Lab (OSUOSL) | 5 | 2015 | |||
| Organic Maps | 3 | OpenStreetMap, java, ios, android, c++ | navigation, mobile, maps, privacy, offline | 2024 | |
| OSGeo | 4 | python, c, standards, c/c++, opensourcedatabases, c++, database, sql, java | cartography, gis, computer vision, geoinformatics, geospatial, open science, science, maps, mapping, open science, maps, geolocation, geospatial, citizen science, geolocation, mapping | Other | 2020 |
| OSGeo - Open Source Geospatial Foundation | 11 | sql, python, javascript, java, c, python, c++, c/c++ | routing, citizen science, open science, mapping, open science, databases, geolocation, gis | 2024 | |
| OSGeo - The Open Source Geospatial Foundation | 1 | python, sql, c, ogcstandards, c++ | gis, science, maps, cartography, geospatial | 2016 | |
| OSU Open Source Lab | 1 | python, rest, javascript, ruby | virtualization, infrastructure | 2016 | |
| OSv | 1 | 2014 | |||
| Our World In Data | 1 | python, mysql, d3, typescript, pandas | open data, data visualisation, Data cataloging | 2022 | |
| oVirt | 2 | python, kvm, java | virtualization, enterprise application | End User Applications | 2017 |
| OW2 | 1 | java, perl, middleware, bpm, wiki | enterprise information systems, cloud, security, middleware | Other | 2018 |
| OWASP | 1 | 2013 | |||
| OWASP Foundation | 10 | python, ZAP, c/c++, ruby, javascript, php, java, javascript, net, Juice Shop, node.js, html, .net, golang, java | mobile security, web, cybersecurity, cloud, cyber security, DevSecOps, secure development, top 10, application security, web application security, sdlc, appsec, information security, application security, cloud security, security, pentesting | Security | 2024 |
| ownCloud | 2 | php, css, qt, javascript, ios, sql, android, html | data sharing, sync, web, cloud, synchronized, file share | Cloud | 2017 |
| P2PSP.org | 4 | python, qt, webrtc, javascript, android, c/c++, ios, c++, sockets | streaming, live streaming, p2p, multimedia, video, networking, distributed networks, real time, security | Graphics / Video / Audio / Virtual Reality | 2018 |
| PacketFence | 1 | 2012 | |||
| PaGMO / PyGMO | 1 | 2013 | |||
| PaGMO / PyKEP | 1 | 2015 | |||
| Pardus | 2 | 2010 | |||
| Parrot Foundation | 3 | 2013 | |||
| PEcAn Project | 8 | r, python, api, docker, php, geospatial, postgresql, r, javascript, c, docker, singularity, kubernetes, kubernetes | scientific visualization, ecological forecasting, ecological forecasting, data science, scientific visualization, Ecological Forecasting, climate science, data science, climate science, ecosystem models, ecosystem models | Science and Medicine | 2024 |
| Pencil Code Foundation | 1 | 2015 | |||
| Peragro | 1 | python, blender, javascript, celery, django | analyzing, transcoding, pipeline automation, games, web | 2016 | |
| Percona | 2 | grafana, mysql, postgresql, javascript, shellscript, golang, prometheus, selenium | monitoring, data visualization, metrics, load testing, databases, alerts, testing, database optimization, automation | Data and Databases | 2020 |
| Performance Co-Pilot | 6 | windows, python, grafana, ruby, linuxkernel, javascript, c, redis, grafana, libuv, linux, java, golang, htop, sysstat, redis, rest | monitoring, performance, realtime messaging, visualization, web development, timeseries, visualization, high performance computing, distributed, performance, observability, kernel, lightweight, metrics, web development, data analysis, analysis, distributed | Operating Systems | 2022 |
| Pharo Consortium | 4 | polymath, smalltalk, squeak, pharo, SUnit, smalltalk, spec, roassal, pharo, ide, git, os, roassal | machine learning, material design, visualization, Modelling, compilers, data science, programming languages, ide, cli, user interface, virtual machines, web development, ide, ai, dynamic environment, nlp, object oriented programming | Programming Languages and Development Tools | 2023 |
| PHP | 1 | 2009 | |||
| phpBB Forum Software | 5 | php, symfony, css, mysql, html5/css3, javascript | communication, collaboration, forum, community, social | Social / Communications | 2018 |
| phpMyAdmin | 9 | bootstrap, jquery, mysql, php, javascript, cakephp | developer, administrator, mysql, web application, web applications, database | Data and Databases | 2019 |
| Physical Web Project | 2 | beacon, python, internetofthings, webbluetooth, bluetooth, beacons, physicalweb, arduino | beacons, internet of things, web apps, mobile | Other | 2017 |
| Pidgin Instant Messenger | 1 | c, gtk, gstreamer | web, real time, video, chat, voice | 2021 | |
| Pidgin, Finch and libpurple | 5 | 2015 | |||
| Pitivi | 4 | gtk, python3, c, python, gstreamer, gstreamer, gtk | filmmaking, video processing, video editing, video editing, video processing, filmmaking | Graphics / Video / Audio / Virtual Reality | 2023 |
| PiTiVi video editor | 1 | 2013 | |||
| PKIF project | 1 | 2009 | |||
| Plan 9 Foundation | 1 | c, golang, distributed systems, concurrency | operating systems, distributed systems, network programming | 2021 | |
| Plan 9 from Bell Labs | 5 | 2014 | |||
| PLASMA @ UMass | 3 | go, javascript, c/c++, scala | programming languages, programming tools, runtime systems, software engineering, operating systems | Programming Languages and Development Tools | 2016 |
| Plone | 1 | python, javascript, html, css, reactjs | communications, collaboration, content management, web | Web | 2018 |
| Plone Foundation | 10 | html/css, python, javascript, zope, javascript, nosql, react, rest | web, cms, content management, cms, enterprise applications, content management | Web | 2024 |
| PLSE at UW | 1 | 2010 | |||
| PMD | 2 | xml, javacc, antlr, xpath, java | code analysis, source code analyzer, linter, code quality | Programming Languages and Development Tools | 2018 |
| Pocket Science Lab | 1 | android, java, firmware, c, cad | science, education, firmware, school apps | Science and Medicine | 2018 |
| Point Cloud Library | 2 | cpp, c++14, python, cmake, cmake, devops, cuda, computer vision | robotics, 2d/3d graphics, robotics, 3d computer vision, perception, computer vision, data structures, gpu computing | Graphics / Video / Audio / Virtual Reality | 2021 |
| Point Cloud Library (PCL) | 3 | 2014 | |||
| Polly Labs | 2 | llvm, integersetlibrary, isl, c/c++, ppcg, polly, pencil | parallelization, program verification, fpga, compilers, polyhedral compilation, polyhedral model, optimization | Programming Languages and Development Tools | 2018 |
| Polypheny | 3 | java, sql, angular, javascript | nosql, databases, big data, ui, polystore, cloud, database | 2024 | |
| Portable Native Client | 1 | 2015 | |||
| Portland State University | 9 | language-agnostic, openhardware | academic projects, new projects, individual projects | Other | 2017 |
| PostgreSQL | 9 | sql, postgresql, postgres, javascript, perl, postgresql, julia, c, ordbms, python, sql, perl, rdbms, go | sql, postgresql, database, data, web, relational database, big data, Benchmark, data management, ui, sql, rdbms, data, database | Data and Databases | 2024 |
| PostgreSQL Global Development Group | 1 | 2011 | |||
| PostgreSQL Project | 4 | 2015 | |||
| Postman | 4 | graphql, api, AsyncAPI, javascript, rest api, node.js, openapi, node.js, JSON Schema | productivity, programming languages and development tools, apis, data, api, documentation, api, programmer productivity, software development, automation, testing, api management, api management, developer tools | Programming Languages and Development Tools | 2024 |
| PowerDNS | 1 | c++, DNS | DNS recursive solutions, Authoritative DNS software | 2022 | |
| Princeton Center for Information Technology Policy | 1 | 2010 | |||
| PRISM Model Checker | 3 | c++, java | verification, science, probabilistic models | Science and Medicine | 2016 |
| Privly Foundation | 1 | 2015 | |||
| Probot | 1 | javascript, node, github | bot, automation, development tools | Programming Languages and Development Tools | 2018 |
| Processing | 3 | 2013 | |||
| Processing Foundation | 4 | opengl, android, python, javascr, javascript, java, javascript, android, opengl, java | web, education, design, web, graphics, graphics, creative coding, education, creative coding, design | Programming Languages and Development Tools | 2023 |
| Project Mesa | 1 | python, javascript | Agent Based Models, Generative Science | 2024 | |
| Project PANOPTES | 1 | python3, arduino, cloud | astronomy, robotics, exoplanet, image processing | Science and Medicine | 2019 |
| Project Tox | 1 | 2014 | |||
| Project WikiLoop | 1 | python, java, mediawiki | cultural heritage, knowledge graphs, computer-assisted translation | 2021 | |
| Prometheus-Operator | 1 | prometheus, go, kubernetes, kubernetes operators | monitoring, cloud, observability, Kubernetes Operator | 2024 | |
| Ptolemy Project, University of California, Berkeley | 1 | 2009 | |||
| Public Lab | 6 | rubyonrails, ruby, raspberrypi, webrtc, javascript, node.js, node, leaflet, ruby on rails | environment, environment, pollution, diy, documentation, forum, collaboration, community, science, hardware, community, diversity | Science and Medicine | 2022 |
| Public Laboratory for Open Technology and Science | 2 | 2014 | |||
| PulseAudio | 2 | 2013 | |||
| Puppet (Reductive Labs) | 1 | 2010 | |||
| Puppet Labs | 1 | 2012 | |||
| Purr Data | 7 | css, html5, javascript, Emscripten, html5/css3, javascript, c, c/c++, html5, node.js, c++, opengl, html, svg | music, visual programming, audio, graphics, realtime, audio, digital signal processing, real-time, real-time, graphics / video / audio / virtual reality, dsp, 2d/3d graphics, web, real-time system, web development, visual programming, data visualization, video, data vizualisation | Graphics / Video / Audio / Virtual Reality | 2024 |
| Python HYDRA | 1 | python, rdf, flask, hydra, json/json-ld | apis, database, functional-programming, semantic web, knowledge graph | Web | 2018 |
| Python Software Foundation | 16 | python, mercurial, javascript, c++, SBOM | machine learning, programming languages, visualization, biology, ui design, science, physics, hardware, science, Backup, modeling, compiler, mathematics, science and medicine, image analysis, security | Programming Languages and Development Tools | 2024 |
| QC-Devs | 1 | python, github, c++, julia, jupyter | data science, scientific visualization, quantum chemistry, Computational Science, numerical algorithms | 2024 | |
| Qdrant | 1 | python, javascript, rust | databases, machine learning, Search Engines | 2023 | |
| QEMU | 10 | virtualization, python, c, python, linux, rust, linux, kvm, rust, assembly | virtualization, compiler, emulation, emulator, compilers, hypervisor, lowlevel, code generation, kernel, hypervisor, kernel, cloud, lowlevel, systems programming, emulator, compiler, code generation, operating systems | Cloud | 2023 |
| QEMU development team | 1 | 2010 | |||
| QEMU.org | 2 | 2013 | |||
| Quagga @ OpenSourceRouting / ISC | 1 | 2013 | |||
| Qubes OS | 3 | xen, python, c, shell, python, shell, linux, ruby | virtualization, privacy, privacy, operating system, security, security, operating systems | Operating Systems | 2021 |
| Quill.org | 1 | ruby, rails, react, javascript, postgresql | education, edtech, machine learning, nlp, web | Web | 2018 |
| R Foundation for Statistical Computing | 1 | 2009 | |||
| R Project for Statistical Computing | 14 | r, javascript, fortran, javascript, c, r-project, fortran, c++, c++, r-project | machine learning, data visualization, statistics, statistics, visualization, data science, data science, machine learning, graphics, graphics | Programming Languages and Development Tools | 2024 |
| RADAR-base | 1 | java, kotlin, docker, angular, kafka | web, mhealth, remote patient monitoring, micro-services, devices | 2022 | |
| radare | 3 | cpp, python, qt, go, c, rust, c++ | reverse engineering, debugging, program analysis, disassembly, assembly, security, decompilation | Security | 2020 |
| radare2 | 1 | c, rust, python, nodejs | reverse engineering | Security | 2017 |
| Raxa | 3 | 2014 | |||
| React Native Elements | 1 | javascript, react, react native | ui toolkit, design system | 2021 | |
| ReactOS | 7 | win32, php, nt, c, c/c++, win32, c++, nt, c++ | windows, drivers, kernel, kernel, web services, applications, applications, drivers, windows, desktop, operating systems | Operating Systems | 2021 |
| ReactOS Foundation | 1 | c, c++, win32, nt | operating systems, kernel, drivers, windows, system programming | 2022 | |
| Read the Docs | 2 | elasticsearch, python, django, sphinx, javascript, documentation | communications, documentation, docs, web | Programming Languages and Development Tools | 2019 |
| Red Hen Lab | 10 | python, audioprocessing, singularity, machine learning, nlp, machinelearning, scikit-learn, highperformancecomputing, opencv, nlp, computer vision, datascience, syntaxnet, ai, audioprocesing, asr, multimodalanalysis, machinelearning, tensorflow, data science, big data science | big data visualization, big data, data science, cognitive science, artificial intelligence, language, deep learning, metadata, ai, ai, audio processing, natural language processing, machine learning, communication, multimedia, multimodal communication, gesture, co-speech gesture, video processing, media | Science and Medicine | 2024 |
| Responsible AI and Human Centred Technology | 1 | python, javascript, Technical writing | machine learning, ai, Fairness, Robustness, Safety, Interpretibility | 2022 | |
| Review Board | 4 | 2012 | |||
| RIOT | 1 | 2015 | |||
| Rizin | 4 | c, python, qt, c++, go | reverse engineering, emulation, debugging, computer security, disassembly | 2024 | |
| RoboComp | 9 | qt5, python, openscenegraph, cmake, opencv, qt, ice-zeroc, opencv, c++, gnu/linux, zerocice, c/c++, qt, pytorch, c++, c++11, c++17, component-baseddevelopment | computer vision, framework, component-based development, robotics, multi-agent system, Multi-agent Systems, robotics simulation, simulation, robotics, computer vision, multi-agent system, component-based development | Other | 2022 |
| Robolectric | 2 | android, jvm, java, asm | testing, mobile | 2024 | |
| Rockbox | 3 | 2011 | |||
| Rocket.Chat | 8 | nodejs, typescript, react native, react, ios, kubernetes, chatbots, meteor.js, LLM, ruby, docker, reactnative, node, generative ai, mongo, javascript, node, webrtc, node.js, android | realtime communications, collaboration, chatbot, messaging, group chat, progressive web apps, instant messaging, community, chatops, social-network, communications, bot, Team Collaboration, Chat platform, chat, realtime, team chat, communication, machine learning, communication, instant messaging, team | Social / Communications | 2024 |
| RooStats | 1 | 2012 | |||
| RouteFlow | 3 | 2015 | |||
| Rspamd | 2 | machinelearning, cmake, javascript, c, lua | machine learning, high performance computing, spam filtering, email | Security | 2018 |
| Rspamd spam filtering system | 1 | 2015 | |||
| RTEMS Project | 16 | bsdunix, python, embeddedsystems, posix, c, posix, assembly, c/c++, bsd unix, waf, assembly, c/c++ | iot, embedded, rtos, multicore, posix, kernel, operating system, kernel, embedded systems, real-time, real time, embedded systems, iot cps, multicore | Operating Systems | 2024 |
| Ruby | 8 | ruby, ruby on rails, java, c, rubygems, ruby, ruby on rails, java | programming languages, performance optimization, web servers, cloud, web, type system, application, web servers, developer tools, web development, cloud, server, security, developer tools, programming language | Programming Languages and Development Tools | 2023 |
| Ruby on Rails | 6 | html, rubyonrails, ruby | web development, web applications, web, full stack | Web | 2018 |
| Ruby Science Foundation | 6 | cprogramming, machinelearning, web, ruby, ai, jruby, c, c/c++, science, cuda, c++, data, gpu | visualization, web, compilers, data science, parallel algorithms, scientific visualization, data-science, linear algebra, scientific computing, package management, science, artificial intelligence, space, data, hpc, math | Science and Medicine | 2019 |
| Ruby Science Foundation (SciRuby) | 1 | 2014 | |||
| Sage Mathematical Software System | 7 | cython, python, python3, c, javascript, c/c++, c++ | combinatorics, toolbox, algorithms, science, mathematics, mathematical software, math | Science and Medicine | 2018 |
| SageMath | 6 | cython, python, cython | math, education, research, research, mathematics, education, math | Science and Medicine | 2024 |
| Sahana | 1 | 2009 | |||
| Sahana Software Foundation | 5 | 2014 | |||
| Sakai Foundation | 2 | 2010 | |||
| Sakai Project | 2 | 2012 | |||
| Salesforce | 1 | scala, apachespark, javascript, nodejs, react | machine learning, natural language processing, web applications, user interface, cli | Cloud | 2019 |
| Samba | 10 | smb, python, c, cifs, cifs, smb | networks, interoperability, networking, networking, enterprise, samba | Data and Databases | 2021 |
| Saros | 1 | 2015 | |||
| Scaffold Hunter | 2 | 2014 | |||
| Scala | 3 | llvm, scala, jvm | programming languages, compiler, programming-language, compilers, programming-tools, programming tools, functional-programming, functional programming | Programming Languages and Development Tools | 2018 |
| Scala Center | 4 | #scala_lang, #jvm, #scala, #llvm, #js, scala.js, scala native, scala | #education, #compilers, tooling, compilers, #functional-programming, #programming-tools, education, #programming-languages | 2024 | |
| Scala Team | 4 | 2015 | |||
| Scalable Parallel Computing Laboratory | 2 | mpi, python, aws, c++, Serverless | programming languages, high-performance computing, parallel computing, Serverless Computing, faas | 2024 | |
| Scilab | 4 | python, c, c++, opengl, scilab, java | scientific visualization, numerical computing, numerical computation, science, graphics, mathematics, programming language | End User Applications | 2018 |
| Scilab Consortium/Digiteo Foundation | 1 | 2010 | |||
| Scilab Enterprises | 2 | c, fortran, c++, scilab, java | vision, engineering, user interface, graphics, mechanics | Science and Medicine | 2016 |
| Scilab/Digiteo Foundation | 1 | 2009 | |||
| SCons next-generation build system | 1 | 2009 | |||
| SCoRe Lab | 4 | nodejs, android, python, machinelearning, java, cloud, reactjs, webdevelopment, mobile, golang, go | machine learning, mobile, web development, cloud, machine learning, web development, mobile, information security, cloud, ai, information security, security | End User Applications | 2023 |
| SCoRe Lab (Sustainable Computing Research Lab) | 1 | python, nodejs, android, golang | information security, mobile, cloud, web development, machine learning | Security | 2019 |
| Scribus | 1 | 2012 | |||
| Scribus Team | 2 | 2011 | |||
| ScummVM | 15 | lua, opengl, python, sdl, assembly, lua, c/c++, c++, assembly, c++, sdl, opengl, php | engines, game, game engines, software archeology, software preservation, software preservation, game engines, games, software archeology | End User Applications | 2024 |
| SeaQL | 1 | mysql, postgresql, llvm, rust, sql | database, library, sql, rust, Debugger | 2022 | |
| Seastar | 1 | cpp, framework, dpdk, tcp, linux | high performance, tcp, app development, network, framework | Programming Languages and Development Tools | 2018 |
| Selenium | 2 | 2011 | |||
| Sencha Labs | 1 | 2011 | |||
| SETI Institute | 1 | 2011 | |||
| Shaka Player | 1 | python, javascript, web development, video codecs, ui/ux | web, streaming, video | 2021 | |
| SharpDevelop | 2 | 2010 | |||
| Shogun | 1 | python, c++, datascience, machinelearning, matlab | machine learning, scientific computing, software engineering, user experience, data science | Science and Medicine | 2020 |
| Shogun Machine Learning Toolbox | 5 | python, machinelearning, cmake, swig, c/c++, c++ | machine learning, statistics, statistics, fast algorithms, bioinformatics, bioinformatics, fast algorithms, software engineering, software engineering | Science and Medicine | 2017 |
| Shogun Machine Learning Toolbox (Technical University Berlin / Max Planck Campus Tübingen) | 1 | 2011 | |||
| shogun.ml | 1 | c++11, c++17, python, swig, cmake | machine learning, scientific computing, software engineering, user experience, data science | Science and Medicine | 2019 |
| Sigmah | 5 | postgresql, java, gwt | project-management, humanitarian, hfoss | End User Applications | 2017 |
| SilverStripe | 1 | 2012 | |||
| Simple DirectMedia Layer | 4 | 2013 | |||
| SimpleCV | 2 | 2013 | |||
| SIP Communicator | 2 | 2010 | |||
| sktime | 2 | sphinx, github, python, scikit-learn | data science, toolbox frameworks, time series, ai | 2024 | |
| Society for Arts and Technology (SAT) | 2 | opengl, python, javascript, c++, supercollider | web, multimedia, graphics, cloud, accessibility | 2023 | |
| Software and Computational Systems Lab at LMU Munich | 4 | java, java, python, javascript | software analysis, software verification, result presentation, formal methods, benchmarking, smt solver, benchmarking, SAT & SMT solving, program analysis | Programming Languages and Development Tools | 2024 |
| Software Freedom Conservancy, Inc. | 1 | 2014 | |||
| Software Heritage | 3 | elasticsearch, postgresql, postgres, python, django, django, javascript, javascript, git, git | digital preservation, big data, big code, floss, source code archive, big code, free and open source software, digital preservation, source code management | Data and Databases | 2022 |
| Software Product Data Exchange (SPDX) | 1 | rdf, python, java, github, c | compliance, opensource, licensing | Programming Languages and Development Tools | 2017 |
| Soletta Project | 1 | c, python, javascript, networking, machinelearning | internet of things, portable, robotics, drones, makers | Programming Languages and Development Tools | 2016 |
| Space @ Virginia Tech | 1 | python, javascript, d3, mysql, mongodb | real time, web, data visualization, data analytics | Science and Medicine | 2018 |
| SPDX | 5 | xml, python, json, java, golang, rdf, rdf, node.js, golang, json, go, java | compliance, data, licensing, vulnerabilities, open source, standards, licensing, compliance, security | Other | 2023 |
| SPDX (Software Product Data Exchange) | 1 | python, java, golang, xml | open source, compliance, licensing | Programming Languages and Development Tools | 2019 |
| SQLancer | 1 | java, sql | fuzzing, Automated Testing, Logic bugs, Database systems | 2023 | |
| Statistics Online Computational Resource | 1 | 2012 | |||
| StatusNet | 2 | 2011 | |||
| stdlib | 1 | c, javascript, node.js, typescript | mathematics, web, scientific computing, numerical computing, statistics | 2024 | |
| STE AR Group | 7 | cpp, hpc, python, opencv, hpc, c++17parallelstl, boost, cuda, c++, c++, hpx, boost, parallelalgorithms | high performance computing, parallel algorithms, parallelism, asynchronous manytask systems, hpc, asynchronous many task systems, parallel algorithms, algorithms, high-performance computing, runtime systems, optimization, deep learning, application, concurrency, hpx, runtime systems, c++ standardizaion, parallel computing, distributed datastructures, library, machine learning | Programming Languages and Development Tools | 2024 |
| Steel Bank Common Lisp | 2 | 2014 | |||
| Stellarium | 1 | 2012 | |||
| Stemformatics | 1 | python, javascript, postgresql | web applications, cloud, bioinformatics | Science and Medicine | 2018 |
| Stichting SU2 | 1 | python, c++ | aerodynamics, Computational Fluid Dynamics, Multi-Disciplinary Optimization, Adjoint Design Optimization, Fluid Dynamics | 2024 | |
| Stony Brook University Biomedical Informatics | 3 | matlab, apachespark, python, bigdata, javascript, hadoop, medicalimaging, c++, bioinformatics | biomedical data science, big data, imaging, genomics, bioinformtics, biomedical informatics, deep learning, cancer informatics, database, medical imaging | Science and Medicine | 2018 |
| strace | 10 | awk, c, shell, shell script, git, shellscript, linux, shell, make, linux, make, git, autotools, gawk | tracing, syscall, debugging, diagnostic, c, diagnostic, tracing, linux, git | Operating Systems | 2023 |
| Stratosphere Laboratory, Czech Technical University in Prague | 2 | textual, python, docker, redis | machine learning, Security Defense, civil society, network security | 2024 | |
| Stratosphere Project | 1 | 2014 | |||
| Streetmix | 1 | javascript, react, redux, postgresql, mongodb | smart cities, web, civic tech | End User Applications | 2018 |
| Submitty | 6 | postgresql, python, php, javascript, postgresql, javascript, databases, c++, web/html/css, c++, php/javascript/ajax, php | communication, visualization, data visualization, visualization, web, privacy/security, web, privacy/security, education, communication | Other | 2024 |
| Subsurface | 2 | 2015 | |||
| Subversion | 1 | 2009 | |||
| Sugar Labs | 13 | typescript, python, python gtk, gtk, c, javascript, react, gtk, gtk+, android, pygame, vue.js, javascipt | learning, games, desktop, media, software, user interface, open source, programming, games, stem, education, learning, collaboration | End User Applications | 2024 |
| Sugar Labs educational platform (a member of the SFC) | 1 | 2009 | |||
| Sunlight Foundation | 1 | 2009 | |||
| Sunlight Labs | 2 | 2011 | |||
| SuperTuxKart | 2 | 2014 | |||
| Sustainable Computing Research Group ( SCoRe ) | 4 | python, gcp, go, pyth, hadoop, golang, android, node, golan, java | mobile applications, machine learning, iot, cloud with google computer engine, web, forensic, embedded systems, mobile, security | Web | 2018 |
| Swathanthra Malayalam Computing | 2 | 2014 | |||
| Swift | 7 | llvm, cmake, compilers, cmake, swift, server, programminglanguages, c++, ios, c++, swift | Standard Libraries, programming languages, programming languages and development tools, programming libraries, compilers, cross-platform, Server development, debugging, package management, developer tools, programming, Packages | Programming Languages and Development Tools | 2024 |
| SWIG | 2 | 2012 | |||
| SymbiFlow | 3 | python, fpga, verilog, c/c++, fpga, xilinx, verilog, c/c++ | programming languages, programming languages and development tools, fpga, electronic design tools, development tools, open hardware | Programming Languages and Development Tools | 2021 |
| SymPy | 13 | jupyter, numpy, python, c++ | science, physics, symbolic mathematics, mathematics, science, physics, computer algebra, symbolic mathematics, math | Science and Medicine | 2024 |
| SyncDiff(erent) | 1 | 2014 | |||
| Synfig | 6 | python, gtkmm, gtk, c++11, gtk, c++, c++, gtkmm | 2d animation, animation, vector graphics, animation, vector graphics, 2d/3d graphics | Graphics / Video / Audio / Virtual Reality | 2024 |
| syslog-ng | 4 | elasticsearch, kafka, elasticsearch, sql, python, json, kafka, c, python, sql, rest | build tools, reliable log transfer, logging, high performance data processing, data processing pipeline, high performance data processing, high-performance data processing, cloud, reliable log transfer, log management, cloud, logging, data processing pipeline | Other | 2022 |
| Systers | 1 | 2012 | |||
| Systers Community | 1 | ios, android, python, rubyonrails, javascript | mobile applications, web apps, community | Other | 2018 |
| Systers, an Anita Borg Institute Community | 5 | python, rubyonrails, mysql, javascript, android, ios, java | web, women in open source, women in tech, mobile, games, peace corps, systers | Other | 2017 |
| Systers: Women in Computing | 2 | 2010 | |||
| Tahoe-LAFS | 1 | 2010 | |||
| Tarantool | 2 | lua, sql, c, python, c++ | algorithms, distributed systems, In-memory, IMDG, high performance data processing, JIT, sql, in-memory data grid, NoSQL Database | 2022 | |
| TARDIS RT Collaboration | 3 | python, jupyter, numpy, numba, pandas | astrophysics, big data, simulation, visualization | 2024 | |
| TARDIS SN | 4 | cython, python, jupyter, numpy, c, numba, pandas | astronomy, visualization, simulation, supernova, big data, science, astrophysics, monte carlo methods, global optimization, radiative transfer | Science and Medicine | 2021 |
| Tcl Community Association | 1 | 2009 | |||
| Tcl/Tk Community | 2 | 2011 | |||
| TEAMMATES @ National University of Singapore | 4 | css, javascript, googleappengine, html, appengine, javaee, java | teaching, software as a service, webapps, peer feedback, cloud, saas, web applications, web development, learning management, education | Web | 2018 |
| TEAMMATES Project @ National University of Singapore | 1 | 2014 | |||
| TensorFlow | 5 | machine learning, python, machinelearning, deeplearning, Jax, python deep learning frameworks, javascript, c/c++, keras, dataanalysis, ai, tensorflow, c/c++ | machine learning, python, deep learning, on-device machine learning, data science, machine learning, deep learning, computer vision, research, cloud computing, education, natural language processing, data | Other | 2023 |
| The Apache Software Foundation | 4 | java, c, c/c++, c++, c++, rust, java | libraries, big data, libraries, cloud, big data, cloud | Programming Languages and Development Tools | 2021 |
| The Apertium Project | 2 | xml, python, perl, finite-statetechnologies, c++ | morphological analysis, human language technologies, computer-aided translation, natural language processing, machine translation | Social / Communications | 2016 |
| The Aqsis Team | 1 | 2009 | |||
| The Asterisk Project | 2 | 2010 | |||
| The Battle for Wesnoth | 1 | 2011 | |||
| The Center for Connected Learning and Computer-Based Modeling | 4 | css, html5/css3, javascript, html5, scala, java | programming languages, education, simulation, science, research, research, academic research, education, programming language | Programming Languages and Development Tools | 2019 |
| The Centre for Computational Medicine | 1 | 2013 | |||
| The CGAL Project | 3 | github, git, c++ | computational geometry, mesh processing, geometry processing, triangulaton, arrangement | Science and Medicine | 2017 |
| The Codehaus | 3 | 2011 | |||
| The Concord Consortium | 4 | 2015 | |||
| The Eclipse Foundation | 9 | iot, php, geo, openj9, javascript, c/c++, xtext, jakarta, che, ide, java | iot, runtimes, industry, developer tools, cloud, runtime systems, research, locationtech, internet of things, ide, frameworks | Programming Languages and Development Tools | 2019 |
| The Electronic Frontier Foundation/The Tor Project | 1 | 2009 | |||
| The ENIGMA Team | 4 | opengl, qt5, recursive-descent, android, c++, opengl | game development, compiler, graphics, game design, programming | 2024 | |
| The Enlightenment Project | 1 | 2009 | |||
| The Fedora Project | 5 | 2015 | |||
| The FreeBSD Project | 5 | llvm, c, assembly, POSIX shell, make | Embedded System, virtualization, operating system | 2024 | |
| The Freenet Project | 1 | 2009 | |||
| The FreeType Project | 1 | fonts, opentype, c, library | fonts, opentype, rendering, graphics, truetype | Graphics / Video / Audio / Virtual Reality | 2017 |
| The Gambit Project | 2 | 2012 | |||
| The Globus Alliance | 3 | 2011 | |||
| The GNU Project | 4 | guile, scheme, python, operatingsystems, c, javascript, c/c++, android | astronomy, gnu, http, reverse engineering, operating system, package managers, free software, operating systems | Operating Systems | 2020 |
| The Honeynet Project | 15 | django, python, javascript, c, python, c++, machinelearning, go, docker, linux, html/javascript, honeypots, javascript, networkstack, python3, c/c++, networking, golang, honeypot, android, dataanalysis, go | honeypots, hypervisor introspection, deception, honeynet, Threat Intelligence, honeynets, sandbox, malware, networking, fuzzing, network analysis, web development, research, honeypot, honeypot, malware analysis, security | Security | 2024 |
| The Java Pathfinder Team | 8 | javajava, jvm, bytecode, android, distributedsystems, java | symbolic execution, model checking, test input generation, formal methods, program analysis, verification , environment generation, testing, software model checking, model checking, virtual machine, concurrency, symbolic execution, verification of concurrent systems, test input generation, testing , program analysis | Programming Languages and Development Tools | 2020 |
| The JPF team | 3 | distributed systems, jvm, smt solvers, java, android | model checking, verification of concurrent systems, test input generation, symbolic execution, program analysis | 2024 | |
| The Julia Language | 9 | llvm, julia, machine learning, julia, garbage-collection, javascript, c, compilers, c/c++, data science, atom, c++, julialang, gpu | machine learning, numerical computing, statistics, data science, high performance computing, linear algebra, science, graphs, numerical computation, scientific computing, data science, machine learning, graphics, technical computing, plotting, integrated development environments, math | Programming Languages and Development Tools | 2024 |
| The Libreswan Project | 6 | virtualization, python, kvm, nss, web, RFCs, c, qemu, python, shellscript, namespaces, shell | ipsec, vpn, encryption, vpn, ike, encryption, ipsec vpn, ikev2, ipsec, security, ikev2 | Security | 2022 |
| The Linux Foundation | 15 | python, cups, mysql, gtk, c, linux, cups, ipp, c++, c++, ipp | zephyr, lsb, spdx, automotive, printing, wireguard, kernel, iio, printing, wireless, lsb, automotive | Operating Systems | 2024 |
| The LLVM Compiler Infrastructure | 5 | llvm, llvm, clang, c, clang, c/c++, mlir, mlir, c++ | compiler, programming languages and development tools, compilers, code analysis, static code analysis, frontend, debuggers, code analysis, debuggers, optimization, backend | Programming Languages and Development Tools | 2021 |
| The MacPorts Project | 7 | html/javascript, frontend, react.js, vue.js, tcl, make, git | build tools, mac os x, command line, macos, package manager | End User Applications | 2018 |
| The Mifos Initiative | 6 | mysql, spring, java, spring, angularjs, angular, angular, kotlin, android, java | fintech, digital financial services, microfinance, web, mobile banking, ai, big data, mobile banking, fintech, cloud, artificial intelligence, financial inclusion, financial inclusion, cloud | End User Applications | 2024 |
| The Monarch Initiative | 1 | semanticweb, javascript, textmining, namedentityrecognition, ontologies | embeddable widget, rare disease, data refinement | End User Applications | 2016 |
| The Mono Project | 1 | 2010 | |||
| The NetBSD Foundation | 13 | virtualization, cprogramming, networkstack, bsd, c, unix, bsd, kernel, arm, mips, networking, filesystems, bsdmake, make, shell script, bsd unix, security, make | general purpose os, packaging, bsd, userland, kernel, package system, bsd, packaging, unix, package management, operating systems, free and open source software, unix, real unix, userland | Operating Systems | 2024 |
| The NetBSD Project | 1 | 2009 | |||
| The ns-3 Network Simulator Project | 14 | django, python, c++, c/c++, c++, python 3 | computer networking, network simulation, simulation, networking, research and development, emulation, networking, network simulation, network analysis, research | Other | 2024 |
| The NTP Forum | 1 | 2010 | |||
| The Open Motion Planning Library | 1 | 2013 | |||
| The OpenBSD Foundation | 2 | 2015 | |||
| The OpenCog Foundation | 2 | 2015 | |||
| The OpenStack Foundation | 1 | 2014 | |||
| The Outercurve Foundation | 1 | 2012 | |||
| The P4 Language Consortium | 1 | c++, cmake, bazel, grpc, protobuf | networking, programming language, compiler, formal verification, programmable data plane | 2024 | |
| The Palisadoes Foundation | 4 | graphql, typescript, mongodb, javascript, reactjs, node.js, MERN, flutter, flutter | api, mobile, web, social impact, social good, mobile apps, web development, cloud computing, ai, database | 2024 | |
| The Perl Foundation | 5 | perl5, perl, regularexpressions, c, perl6 | programming languages and development tools, concurrency, web services, natural language understanding, functional programming | Programming Languages and Development Tools | 2019 |
| The Postgres Operator | 1 | postgresql, kubernetes, golang, operator, patroni | cloud, cloud native, databases, database services, cloud databases | Data and Databases | 2019 |
| The Privly Foundation | 2 | 2014 | |||
| The Processing Foundation | 5 | python, javascript, android, opengl, java | creative coding, web, education, web, graphics, graphics, education, design, design | Programming Languages and Development Tools | 2019 |
| The Qt Project | 1 | c++11, cpp, qt, qml, opengl | graphics, gis, maps, declarative language | Programming Languages and Development Tools | 2018 |
| The R Project for Statistical Computing | 1 | javascript, c/c++, r-project, fortran | visualization, machine learning, data science, graphics, statistics | 2021 | |
| The Rust Foundation | 1 | python, rust | compilers, programming languages | 2024 | |
| The STE AR Group | 3 | highperformancecomputing, parallelprocessing, cuda, c++, opencl | high performance computing, parallel computing, runtime systems, hpx, gpu | Programming Languages and Development Tools | 2016 |
| The Syslinux Project | 1 | 2009 | |||
| The syslog-ng project | 4 | elasticsearch, python, rest, c, bigdata, c/c++, rust, java | python, continuous delivery, message queue, message correlation, data extraction, log management, logging | Security | 2018 |
| The Terasology Foundation | 3 | lwgjl, opengl, gradle, lwjgl, blender, lwjgl, kotlin, opengl, gradle, java | game, ai, ai, sandbox, graphics, voxel, games, game engines, games, minecraft, graphics / video / audio / virtual reality, modding | End User Applications | 2021 |
| The Tor Project | 3 | browserextensions, python, c, javascript, python, web, golang, rust | privacy, Human Rights, privacy, anonymity, research, anti-censorship, security, anti-censorship, Surveillance | Security | 2023 |
| The Tor Project and EFF | 1 | 2014 | |||
| The Tor Project/Electronic Frontier Foundation | 1 | 2010 | |||
| The Vega Project at the University of Washington | 1 | typescript, d3, vega, vega-lite, react | visualization, data-science | Web | 2019 |
| The Vega Visualization Tools by the UW Interactive Data Lab | 1 | javascript, typescript, react, d3.js | data visualization, visualization grammar, data science, declarative language, plotting tools | Data and Databases | 2018 |
| The Visualization Toolkit | 1 | 2015 | |||
| The Wine Project | 9 | vulkan, win32, x11, c, directx, opengl | desktop integration, opengl, desktop integration, vulkan, directx, 3d, 3d, directx, opengl, compatibility | Other | 2020 |
| The Wiselib | 3 | 2014 | |||
| Theoretical Biophysics @ Humboldt University | 1 | 2011 | |||
| ThinkUp | 2 | 2014 | |||
| Thousand Parsec | 2 | 2010 | |||
| Tianocore | 4 | c, python, rust, uefi, golang | acpi, BIOS, firmware, open system firmware, bootloader, uefi, edk2 | 2022 | |
| TikiWiki CMS/Groupware | 1 | 2009 | |||
| Tiled | 1 | qt, c++, git, github | edit, editing, level, game, game development | End User Applications | 2017 |
| Timelab Technologies Ltd. | 1 | python, javascript | astronomy, algorithm prototyping/visualization, mathematics, time series | End User Applications | 2016 |
| TimVideos | 1 | python, verilog, fpga, vhdl, c | hardware, embedded, video, fpga | Graphics / Video / Audio / Virtual Reality | 2017 |
| TimVideos.us | 5 | python, fpga, vhdl, c, verilog | embedded hardware, live streaming, fpga, embedded, video, hardware, video capture | Graphics / Video / Audio / Virtual Reality | 2019 |
| TLA+ | 1 | java, tla+, eclipse, ocaml, smt | formal methods, algorithms | Programming Languages and Development Tools | 2018 |
| Tokio | 1 | tokio_rs, rust | rust, networking, windows, concurrency | Programming Languages and Development Tools | 2019 |
| Tor | 2 | python, c, javascript, c++ | counter-censorship, anonymity, privacy, free-speech | Security | 2017 |
| Tox | 1 | 2015 | |||
| Tungsten Fabric | 1 | linux, kubernetes, python, networking, c/c++ | software defined networking, routing, security, multicloud | Cloud | 2019 |
| TurboGears | 1 | 2009 | |||
| Tux4Kids | 5 | 2015 | |||
| 3 | 2014 | ||||
| TYPO3 Association | 5 | 2014 | |||
| Ubuntu | 1 | 2010 | |||
| UC OSPO | 3 | python, verilog, machine learning, c/c++, VLSI | hardware, AI/ML, education, storage, I/O | 2024 | |
| UCSC Xena | 3 | python, clojure, javascript, jvm, react, d3 | data visualization, cancer, scientific visualization, bioinformatics, cancer research, genomics, web application, web applications, bioinformatics | Science and Medicine | 2019 |
| Umit Project | 3 | 2012 | |||
| Unicode, Inc. | 1 | java, c++, rust, unicode | compilers, linguistics, languages, internationalization | 2024 | |
| Unikraft | 3 | kvm, c, xen, golang, assembly language | virtualization, software reuse, cloud, software configurability | 2024 | |
| Unitex/GramLab | 1 | java, c++ | natural language processing, local grammars, finite state automata, corpus annotation, multilingual language resources | Programming Languages and Development Tools | 2016 |
| Universal Subtitles | 1 | 2011 | |||
| University of Nebraska - Helikar Lab | 1 | 2015 | |||
| Unknown Horizons | 1 | 2011 | |||
| Unknown Horizons and FIFE | 1 | 2012 | |||
| Uramaki LAB | 1 | python, javascript, html, css, Firebase | Usability, User Evaluation, Heuristic Evaluation, Eye Tracking, Sentimental Analysis | 2024 | |
| Urban Energy Systems Laboratory, Empa | 2 | fastfluiddynamics, milp, gis, python | distributed energy systems, data portal, modeling & optimization, simulation, data analysis, energy | Science and Medicine | 2017 |
| Ushahidi | 1 | 2010 | |||
| Vert.x | 1 | java, reactive, javascript, groovy, micro-services | micro services, high performance computing | Programming Languages and Development Tools | 2016 |
| VideoLAN | 11 | c#, video codecs, c++, qt, video, vue.js, c, go, assembly, opengl, machine learning, asm, qt, audio, c++, assembly | vr, web, multimedia, multimedia, codecs, video, audio, video decode, video, 3d, video processing, network programming, streaming, graphics, codecs, media database | Graphics / Video / Audio / Virtual Reality | 2024 |
| VideoLAN / VLMC Project | 1 | opengl, c++, c, assembly, qt | video, multimedia, editor, editing, non-linear | Graphics / Video / Audio / Virtual Reality | 2016 |
| ViSP | 2 | c/c++, vision, c++ | robotics, vision, computer vision | Graphics / Video / Audio / Virtual Reality | 2018 |
| Visualization Toolkit (VTK) | 2 | 2014 | |||
| vitrivr | 3 | typescript, machinelearning, web, computervision, grpc, angularjs, databases, angular, spark, kotlin, tensorflow, java | multimedia retrieval, retrieval, multimedia, audio, video, 3d, databases, web, machine learning, computer vision, multimedia retrieval | Data and Databases | 2021 |
| Wagtail | 3 | django, python, javascript | cms, accessibility, web | 2024 | |
| Waycrate | 1 | c, c++, rust, wayland, Zig | graphics, Wayland, ScreenCapture, Wayland Compositor, Desktop Portals | 2024 | |
| Wayland | 1 | opengl, wayland, c, xml, kms | graphics, window system, display, video | Graphics / Video / Audio / Virtual Reality | 2016 |
| Weaviate | 1 | python, machine learning, golang, vectors, natural language processing | machine learning, Vector Database, Search Engines | 2022 | |
| webpack | 4 | webassembly, typescript, webasssembly, html5/css3, javascript, node.js, webdevelopment, node, webpack | web performance, programming languages and development tools, compilers, javascript, parser, webassembly, Node.js, toolchains, web development, tooling, webpack | Programming Languages and Development Tools | 2024 |
| Wellcome Sanger Tree of Life | 2 | opengl, python, groovy, nextflow, rust | machine learning, genome assembly, bioinformatics, genomics, genome analysis | 2024 | |
| Wikimedia | 2 | 2014 | |||
| Wikimedia Foundation | 14 | reactjs, css, python, rubyonrails, jquery, php, css, javascript, javascript, Phyton, android, html, html, php | wiki, web, i18n, encyclopedia, wikipedia, mediawiki, wiki, i18n, wikimedia, semantic web, web, wikipedia, wikimedia, education, mediawiki, input methods, semantic web | Web | 2024 |
| Wine | 1 | 2011 | |||
| Wine (a project of Software Freedom Conservancy) | 1 | 2012 | |||
| Wine Project | 1 | 2013 | |||
| WinLibre | 1 | 2009 | |||
| Wireshark | 2 | cmake, qt, lua, c/c++, pcap | data visualization, network security, network monitoring | Security | 2020 |
| WordPress | 5 | 2014 | |||
| World Wide Web Consortium (W3C) | 1 | 2013 | |||
| WorldBrain - Verifying the Internet with Science | 1 | reactjs, javascript | fake-news, misinformation, search, digital knowledge | Social / Communications | 2017 |
| WorldBrain.io - Verifying the Internet | 1 | react, javascript, browserextension, datproject | search, fake-news, decentralization, misinformation, bookmarking | End User Applications | 2018 |
| WorldForge | 6 | 2014 | |||
| WSO2 | 4 | distributedcomputing, webservices, soa, middleware, java | iot, micro services, cloud, data analysis, api management, security | Other | 2017 |
| wxWidgets | 5 | win32, c++, cocoa, gtk+ | gui, desktop, cross-platform | Programming Languages and Development Tools | 2017 |
| X.Org | 2 | 2010 | |||
| X.Org Foundation | 11 | wayland, vulkan, x11, x11, c, vulkan, wayland, DRM, c++, opencl, opengl | windowing system, media acceleration, 3d acceleration, 2d acceleration, gpu, graphics stack, graphic stack, operating system, video, 3d, windowing systems, kernel, graphics, testing/ci, drivers, 2d/3d graphics | Graphics / Video / Audio / Virtual Reality | 2023 |
| Xapian Search Engine Library | 8 | unicode, swig, linux, golang, c++, android | machine learning, search, indexing, linguistics, information retrieval, integration | Data and Databases | 2020 |
| XBMC | 1 | 2013 | |||
| XBMC Foundation | 4 | xml, drupal, python, mysql, c/c++, github, c++11, git | video player, media center, audio, video, home theater, media management | Graphics / Video / Audio / Virtual Reality | 2018 |
| Xelerance Corporation | 1 | 2009 | |||
| Xen Project | 2 | free/netbsd, asm/c/c++, qemu, ocaml, linux | virtualization, embedded/automotive, cloud computing, unikernels, security | Cloud | 2017 |
| xen.org | 2 | 2011 | |||
| Xfce | 2 | javascript, c, python, vala, gtk | gui, customization, desktop environment, desktop | 2022 | |
| Xi Editor | 1 | rust, swift | ide, end user application, text editor | End User Applications | 2019 |
| Xi Editor Project | 1 | rust, swift | text editing, ide | End User Applications | 2018 |
| Xiph.Org Foundation | 3 | x86, assembly, arm, rust, c language | multimedia, video decode, video, video encode | 2021 | |
| XMMS2 | 2 | 2010 | |||
| XMMS2 - X-platform Music Multiplexing System 2 | 1 | 2011 | |||
| XMPP Standards Foundation | 8 | xmpp, xmpp, erlang, gtk, webrtc, javascript, swift, lua, vala, vala, Objective C, c++, java | voip, chat, instant messaging, realtime communication, messaging, Jingle, Real-Time Communication, social, chat, WebRTC, communications | Social / Communications | 2023 |
| XMPP Standards Foundation (XSF) | 1 | asynchronousi/o, lua, xmpp, java, python3 | instant messaging, realtime communications, machine-to-machine, internet of things, xmpp | Social / Communications | 2019 |
| xpra | 1 | python, javascript, c | remote-access, video, desktop, seamless | Graphics / Video / Audio / Virtual Reality | 2019 |
| xpra.org | 1 | python, javascript, compression, remoteaccess, cython | graphics, remote access | End User Applications | 2018 |
| xrdesktop | 1 | c, vulkan, wayland, glib, openxr | virtual reality, graphics, real time, 3dui, window management | 2021 | |
| XWiki | 11 | velocity, html5, css3, java, css, javascript, css3, html5, velocity, java | wiki, structured data, structured data, web platform and services, wiki, platform, platform, web development, web applications, web applications, web platform and services, extensions | Web | 2023 |
| YafaRay (Yet Another Free Raytracer) | 1 | 2010 | |||
| Zendalona | 1 | python, javascript, android, gtk, qt | web, gui, accessibility, braille, gaming | 2024 | |
| Zenodo | 1 | python, postgresql, flask, angularjs, elasticsearch | content management, web, open science, digital library, machine learning | Science and Medicine | 2017 |
| Zulip | 7 | electron, css, django, typescript, python, react native, django, typescript, javascript, electron, reactnative, flutter | cross-platform, great developer tooling, group chat, mobile applications, great developer tooling, team chat, bots, chat, integrations, enterprise, visual design, web development, mobile, teaching quality codebase, team chat, chat, visual design | Social / Communications | 2024 |
| Zulip Open Source Project | 2 | electron, python, django, javascript, ios, reactnative, android | great developer tooling, group chat, bots, chat, mobile, high quality codebase, visual design, full stack web and mobile | Social / Communications | 2019 |
| ZynAddSubFX | 1 | c/c++, ruby, midi, open-sound-control, opengl | audio, digital signal processing, visualization, music, user experience | Graphics / Video / Audio / Virtual Reality | 2019 |
| École Polytechnique Fédérale de Lausanne, Scala team | 1 | 2010 |