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Organizations participating in GSoC 2026 have been announced. View them in the official site here.
ModSecurity
Security
ModSecurity cross platform web application firewall
2016
wafweb application firewall
ASCEND
Science and medicine
Equation-solving software for engineering system modelling
2016
cc++python
ArchC
Programming languages
ArchC is an Architecture Description Language
2016
archcc++python
Arduino
Programming languages
Open source electronic prototyping platform
2020
arduinocc++go
AsyncAPI
Programming languages
Building the future of Event-Driven Architectures
20252024
RAMLgojavajavascripttypescript
Babel
Programming languages
Babel, the community driven compiler for writing next generation JavaScript
2017
babeljavascriptnode.js
BeeWare Project
Programming languages
Tools for cross-platform Python application development.
20182017
androidiosmobilepythonjava1 more
Boa
Programming languages
An ECMAScript engine written in Rust
2026
javascriptrust
Boston University / XIA
Infrastructure and cloud
Crowdsourcing the future Internet
201820172016
advanced data structuresckernellinuxxia1 more
CASTOR
Programming languages
Trustworthy software intensive systems for critical functions.
2021
bytecodejavascala
CERN SFT
Science and medicine
The SFT is part of CERN (European Organization for Nuclear Research).
2016
c++clangjavascriptpython
CMU Sphinx
Media
Fast, Accurate, Flexible Open Source Speech Recognition
2017
ccross-platformhidden markov modelsjavascriptpython
CVXPY
Other
CVXPY is a Python-embedded modeling language for convex optimization problems.
2016
python
Cadasta
End user applications
Transforming the way land & resource rights are documented, managed and stored.
2017
djangojavascriptpython
Carbon Language
Programming languages
An experimental successor to C++
2023
Bisonc++clangllvm
Celluloid
Programming languages
Painless multi-threaded multi-core programming for Ruby.
2016
high-resolution timersmulti-coremulti-threadingrubyzeromq
City of Boston
Data
Empowering Boston's residents through technology
2024
javascriptpython
Classical Language Toolkit
Other
NLP for the Ancient World
201820172016
javajavascriptpython
Developers Italia
Other
An open community of digital public services developers
20192018
cc++javanode.jspython6 more
Elm Software Foundation
Programming languages
A delightful functional language for reliable webapps.
2017
elmhaskelljavascript
Elm Tooling
Programming languages
Improving your Elm experience!
2021
elmfunctional programmingtypescript
Embox
Operating systems
Modular and configurable OS for embedded applications
2020
assemblycgcc
Environmental Data And Governance Initiative
Data
International network addressing threats to US environmental & energy policy
2017
gogoogle cloudjavascriptpythonruby on rails
Erlang Ecosystem Foundation
Programming languages
Supporting the Beam community
2020
beamelixirerlanglfe
Eta
Programming languages
Eta is a dialect of Haskell on the Java Virtual Machine.
2018
haskelljavajvm
FLARE
Security
Industry leading malware analysis
2026202520242023
Ghidraida-propythonSandbox
Flashrom
Operating systems
Reading, writing, verifying, erasing flash chips
2022
bioscromspix86
Frescobaldi
End user applications
Edit music scores with GNU LilyPond.
2017
pyqtpython
GNU Image Manipulation Program
End user applications
GIMP is a cross-platform image editor
20262025202420232022
GEGLc
Gambit: The package for computation in game theory
Science and medicine
The package for computation in game theory
20262016
javascriptc++pythonvisualizationwxwidgets
Ganeti
Other
Cluster virtual server management software
2016
haskellkvmpythonvirtualizationxen
Gemini CLI
Development tools
Gemini CLI brings the power of Gemini directly into your terminal
2026
A2AGenAIMCPSoftware Agenttypescript
GitHub
Other
How people build software
2016
atomc#gitnode.jsruby
GnuTLS
Programming languages
C library implementing TLS and DTLS
2023
CryptographyTLSc
Halide
Programming languages
A language for fast, portable computation on images and tensors
2021
c++llvm
Hazelcast
Data
In-Memory Computing Platform
2020
distributed systemsjava
HumanAI
Media
AI for the Arts and the Humanities
202620252024
aic++data analysismachine learningpython
Inclusive Design Institute
End user applications
The IDI addresses the challenge of designing ICT to work for all potential users
202020182016
csshtmljavascriptjquerynode.js1 more
Institut für Angewandte Informatik (InfAI) e.V.
Media
Putting scientific research into practice.
2019
a-framehtc vivejavajavascriptneo4j
Institute for Artificial Intelligence
Science and medicine
Research in Artificial Intelligence for Autonomous Mobile Robots
20182017
c++lispprologpythonros1 more
JAX and Keras
Artificial Intelligence
Python libraries for large-scale machine learning
2025
aimachine learningpython
JGraphT
Programming languages
Java library that provides graph data-structures and algorithms.
2018
java
Kart Project
Data
Distributed version-control for geospatial data
2022
c++gisgitpython
Kotlin Foundation
Programming languages
Advance the Kotlin programming language
2026202520242023
MultiplatformParsers & Compilersgradlejvmkotlin
LAPPIS
Security
Social Participation to Reach Millions
2024
jupyter hubmachine learningpythonruby on rails
Learning Unlimited
End user applications
Building excitement for teaching and learning
2026
cssdjangohtmljavascriptpython
MZmine
Science and medicine
Open-source software for mass spectrometry
20222020
javajavafx
MZmine and MS-DIAL
Science and medicine
Open-source software for mass spectrometry
2023
c#javajavafx
Mantis
Data
Stream Processing for Operational Analytics
2023
AkkaNettyRxjavajava
Microkernel devroom
Operating systems
Confederation of microkernel projects (Genode, HelenOS, GNU Hurd, MINIX, Redox)
2017
armcc++rustx86
MoFA Org
Development tools
Empower extraordinary with Composition AI
2026
pythonrust
MoganLab
Programming languages
Make acedemic writing as nature as breathing
2026
c++qtscheme
NV Access
Other
Empowering lives through non-visual access to technology
20202019
c++iaccessible2pythonui automationwin32 api
Netty
Web
Netty is an asynchronous event-driven network framework
2020
cjavajni
Neutralinojs
Web
Lightweight cross-platform desktop app framework
202620242022
cc++javascriptnode.jstypescript
Nightwatch.js
Programming languages
An integrated testing framework powered by Node.js
2024
WebDriverjavascriptnode.jsseleniumtypescript
NixOS Foundation
Programming languages
Declarative builds and deployments
20262024
gitnix
OW2
Other
The open source community for infrastructure software.
2018
bpmjavamiddlewareperlwiki
OpenCensus
Infrastructure and cloud
Planet Scale Tracing and Monitoring
2018
gojavanode.jspythonruby
OpenRefine
Data
A power tool for working with messy data
20242020
javajavascript
PAL Robotics
Other
Enhance people’s quality of life through Robotics
2025
c++javascriptpython
PMD
Programming languages
An extensible cross-language static code analyzer.
20182017
antlrjavajavaccxmlxpath
PRISM Model Checker
Science and medicine
PRISM is a tool for formally verifying the correctness of probabilistic systems.
2016
c++java
Peragro
Other
Digital Assets Managed Neatly
2016
blendercelerydjangojavascriptpython
Pitivi
End user applications
Self-expression through filmmaking
2023202120202019
cgstreamergtkpython
Plan 9 Foundation
Operating systems
Lightweight distributed computing
2021
cconcurrencydistributed systemsgo
Polly Labs
Programming languages
Promoting Polyhedral Compilation
20182017
integer set libraryllvmpencilpollyppcg3 more
Portland State University
Other
Individual and Academic Open Source
20172016
language-agnosticopen hardware
PowerDNS
Other
PowerDNS provides open source DNS software
2022
DNSc++
Project Mesa
Science and medicine
Mesa: Agent-based modeling in Python 3+
202620252024
Vector Operationsllmpythonui/uxobject oriented programming2 more
Project WikiLoop
Other
Contribute to open knowledge at scale - heritage preservation and translation
2021
javamediawikipython
Qdrant
Data
Vector Search Database for the new AI generation.
2023
javascriptpythonrust
Ruby on Rails
Web
Ruby on Rails is web framework that optimizes for programmer happinness.
20182017
htmlrubyruby on rails
Seastar
Programming languages
Framework for writing high-performance server applications on modern hardware
2018
c++dpdkframeworklinuxtcp
Semi Technologies
Science and medicine
The ML-first vector search engine
2022
gomachine learningnlppythonvectors
Stichting SU2
Science and medicine
Computational Fluid Dynamics and Optimization
202620252024
c++python
TLA+
Programming languages
TLA+ is a formal specification language used to design, model and verify systems
2018
eclipsejavaocamlsmttla+
The Monarch Initiative
End user applications
An informatics platform for translational disease research
2016
javascriptnamed entity recognitionontologiessemantic webtext mining
The OpenROAD Initiative
Infrastructure and cloud
Collaboratively building an OpenROAD ecosystem
2026
OpenRoadc++pythontclverilog
The Rust Foundation
Programming languages
A language empowering everyone
202620252024
pythonrust
TianoCore
Operating systems
Modern, open source, UEFI BIOS firmware
20222021
cgopythonrustuefi
Tokio
Programming languages
The asynchronous run-time for the Rust programming language.
2019
rusttokio_rs
Typelevel
Programming languages
We do functional programming together
20262025
jvmlinuxnode.jsscalawasm
Unicode, Inc.
Programming languages
Bringing internationalization to software!
20252024
c++javarustunicode
United Nations Office of Information Communication Technology
End user applications
Sustainable future through innovative technology.
2026
cssjavascriptpython
Unitex/GramLab
Programming languages
Unitex/GramLab is an open source, multilingual corpus processing suite
2016
c++java
Urban Energy Systems Laboratory, Empa
Science and medicine
HUES is a platform for modeling & analysis of distributed energy systems
20172016
gismilppythonfast fluid dynamics
Wagtail
Web
The powerful Python CMS for modern websites
20262025202420232022
djangojavascriptpython
Waycrate
End user applications
Writing robust tools for the Wayland protocol
20252024
Zigcc++rustwayland
Wireshark
Security
Wireshark is the world's foremost network protocol analyzer.
2020
cc++cmakeluapcap1 more
Xi Editor
End user applications
A modern text editor with a backend written in Rust.
20192018
rustswift
Xiph.Org Foundation
Media
Open-source and royalty free multimedia
2021
armassemblycrustx86
gVisor
Operating systems
An application kernel for containers that provides efficient defense-in-depth
2021
cc++golinuxposix
illumos.org
Operating systems
Open Source successor of OpenSolaris
2017
dtraceillumosopenzfsunixzfs
jQuery Foundation
Web
jQuery Foundation - home of jQuery, Dojo and many other JavaScript libraries
2016
csshtmljavascriptjquery
libcamera
Media
Provide an open source camera stack for linux
202320222021
cc++gstreamerkernellinux2 more
mypy
Programming languages
A static type checker for Python and a compiler for type-annotated Python
20212020
python
3DTK
Science and medicine
The 3D Toolkit provides algorithms and methods to process 3D point clouds
2018
boostcc++cmakecomputer vision3 more
AOSSIE - The Australian National University's Open-Source Software Innovation and Education
Science and medicine
Research-Intensive Open-Source Projects at Australia's Leading University
2016
databaselispllvmpostgresqlpython1 more
API Client Tools at Google
Programming languages
Industry-leading user experiences for networked APIs.
2019
apigrpcopenapiprotocol buffersrest1 more
API Dash
Development tools
Next-gen AI powered Open Source API DevTool
202620252024
aiapidartfluttermachine learning7 more
Academy Software Foundation
Media
Creating amazing OSS for Media & Entertainment.
20222020
cc++pythongraphicsopengl1 more
Android Graphics Tools Team
Programming languages
Providing excellent tools for graphics developers and driver makers
202120202019
cc++graphicsjavaopengl4 more
AnitaB.org Open Source
Other
Women transform technology. Technology transforms the world.
2020
androidiosjavascriptmobilepython
Bazel
Programming languages
Build and test software of any size, quickly and reliably
20192017
gojavalinuxbazelc2 more
Bench-Routes
End user applications
Bench-routes is an open-source project to analyze performance and monitor APIs.
2021
devopsdockerfrontendgojavascript1 more
BioGears
Science and medicine
ARA is an employee-owned scientific research and engineering company.
2020
cc++cmakepython
Biomedical Informatics, Emory University
Science and medicine
Department of Biomedical Informatics (BMI), Emory University School of Medicine
20192016
deep learninghadoopjavamachine learningmedical imaging2 more
BuildmLearn
End user applications
Building m-Learning applications
2016
androidbootstrapcssdjangofrontend2 more
C2SI
End user applications
C2SI develops FOSS softwares for everyone!!!
20262024
deep learninggojavamachine learningnode.js2 more
CBMI@UTHSC
Science and medicine
We develop Biomedical and Clinical informatics applications
2019
backenddeep learningflaskfrontendjavascript5 more
CHIPS Alliance
Programming languages
Open source IP, tools & standards for ASIC/FPGA
202420232022
ASICchiselfpgarisc-vsystemverilog
CLiPS, University of Antwerp
Data
Computational Psycholinguistics
201920182017
databasejavascriptmachine learningmongodbpython
CVAT
Web
Computer Vision Data Annotation Platform for AI
2024
devopsdjangofrontendjavascriptkubernetes3 more
Casbin
Web
Authorization library that supports RBAC and ABAC
202220212020
frontendgojavascriptpythonreact5 more
Chromium
Operating systems
Fast, seamless, safe, and reliable web for all
20252024202320222021
c++gitjavajavascriptpython
Cilium
Infrastructure and cloud
eBPF-based Networking, Security, and Observability
2021
cdevopsebpfgokubernetes1 more
Clojure
Programming languages
Supporting the Clojure and ClojureScript ecosystem
2017
clojureclojurescriptfunctional programmingjavascriptjvm
Cockpit Project
Operating systems
Cockpit is an interactive server admin interface
2023
frontendjavascriptpythonreact
Conversations.im
Social and communication
An open source instant messaging client and ecosystem based on Jabber & XMPP
20182017
androidjavajavafxmobilepython3 more
Copyleft Games
Media
Game libraries, frameworks, and development toolkits
20172016
cgraphicsopenglpythonjavascript1 more
Data for the Common Good
Web
Connect. Share. Discover.
202620252024
devopsfrontendjavascriptkubernetespython2 more
DeepChem
Science and medicine
Democratize AI for drug discovery.
202620252024
data sciencedeep learninghuggingfacemachine learningnumpy2 more
DeepPavlov
Other
Open-source Conversational AI Stack
2021
deep learningdevopsdockermachine learningpython2 more
Discourse
Social and communication
Civilized discussion for your community.
20172016
devopsdockeremberjavascriptruby3 more
EROFS filesystem
Operating systems
Modern image-based kernel filesystem for everyone
2026
ContainerdandroidcgVisorkernel2 more
Earth Science Information Partners
Science and medicine
Supporting community development of visionary Earth science data technology.
20192018
daskdevopsjavascriptkubernetespython5 more
Elastic
Data
We are the creators of Elasticsearch, Kibana, Beats, and Logstash.
20202018
frontendgojavajavascriptjruby2 more
FrameNet Brasil (UFJF)
Data
Natural Language Understanding with structured computational semantics
202120202019
databasejavascriptmysqlphppython
Free UK Genealogy
Data
Human transcription of family history data
2018
cssdatabasehtmlmongodbmysql2 more
GCP Scanner
Security
Security scanning tool for Google Cloud
2023
google cloudpython
GDevelop
Programming languages
The cross-platform game engine designed for everyone.
2020
cc++frontendgame developmentjavascript2 more
GPAC
Media
C multimedia framework
20202016
c++dashjavascriptmp4mp4box3 more
GRR Rapid Response
Security
GRR Rapid Response is an incident response framework for remote live forensics.
2021
angularbackendfrontendjavascriptmaterialui2 more
German Center for Open Source AI
Data
Democratically governed AI for society
2026
deep learningmachine learningpythonpytorchscikit-learn
Google FHIR SDK
Science and medicine
This work is a partnership between Google, WHO, Ona and other health partners
2021
androiddatabasefhirkotlinmaterialui2 more
GraphQL Foundation
Data
GraphQL is a fast and efficient query language for APIs.
2020
apifrontendgraphqljavascriptnode.js1 more
Graphite
End user applications
Multimedia art/design editor and graphics engine
202620252024
aigraphicsmachine learningrustvulkan1 more
Green Navigation
Other
Energy efficient routing for electric vehicles
20172016
databaseelectromobilitygojavascriptpolymer8 more
Health Information Systems Programme
Web
Health information system which is being used by 47 countries across world.
2016
androidfrontendgradlejavajavascript2 more
Indic Project
End user applications
Improving Information Infrastructure and Access to Knowledge in Indian languages
2016
androidc++javascriptmobilepython1 more
InterMine
Science and medicine
Integrating biological data sources, making it easy to query and analyse data
20192018
clojuredatabasejavajavascriptpostgresql2 more
Internet Health Report
Science and medicine
Monitoring the Internet
2025202420232022
frontendjavascriptkafkapythonvue.js
Internet Systems Consortium
Other
We support the infrastructure of the Internet with Open Source
20192018
apicc++cassandradatabase6 more
Invesalius
Science and medicine
3D Medical visualization and neuronavigation tool
2026202520242023
Vtkcythondata sciencedicomnumpy1 more
Ivy (lets-unify.ai)
Data
All of AI, at your Fingertips.
2023
cythondeep learningjaxmachine learningpython2 more
JSON Schema
Data
We enable the reliable use of JSON data format.
202620252024
.netjavascriptjsonpythontypescript
Jenkins X
Infrastructure and cloud
Accelerate Your Continuous Delivery on Kubernetes
2022
devopsgitopsgokubernetes
Jina AI
Data
Multimodal AI from the community, for everyone
2023
data sciencemachine learningmicroservicespython
K-9 Mail
End user applications
K-9 Mail – Advanced Email for Android
2017
androidjavamobile
KNIME
Data
Open for Innovation
2019
deep learningjavajavascriptmachine learningtensorflow
Keploy
Programming languages
Unit, API test generation agent using AI & EBPF
202520242023
backenddatabaseepbfexpress.jsfrontend9 more
Keptn
Infrastructure and cloud
Event-driven orchestration of cloud-native apps
2022
Helmangulardevopsfrontendgo2 more
KolibriOS Project Team
Operating systems
A tiny and fast operating system in fasm
202620242016
assemblyfasmflat assembleri386i5864 more
Konflux
Infrastructure and cloud
Secure software pipelines, the K8s way
2026
devopsdockergokubernetespython1 more
Kornia
Programming languages
Advancing Computer Vision & Spatial AI, Openly
20262025
Spatial AIcudadata sciencedeep learningmachine learning2 more
LEAP Encryption Access Project
End user applications
Privacy should not be a priviledge
20222018
gnupgjavascriptopenvpnpythontwisted6 more
Learning Equality
End user applications
Building equity in education to transform lives
202620252024202320222021
djangofrontendjavascriptpythonvue.js
Libre Space Foundation
Science and medicine
Open-source software and hardware technologies for space
202120202019
arduinocc++djangopython5 more
LuaRocks
Programming languages
The Lua package manager and ecosystem
201920182017
lualuarocksclinuxunix1 more
MGGG Redistricting Lab
End user applications
MGGG researches applications in math and computer science for US redistricting
20212020
gisjavascriptjuliamappingpython1 more
MLLAM
Science and medicine
Research software for AI weather forecasting
2026
Zarrdata sciencedeep learningmachine learningnumpy3 more
MapAction
Other
MapAction works on maps and data analysis for the humanitarian sector
2021
apache airflowdata analysisgispythonvisualization
Mathesar
Data
Webapp providing a UX-first interface to databases
20232022
databasedjangojavascriptpostgresqlpython1 more
Mautic
End user applications
Free your Marketing with Open Source!
2024
databasemysqlphpsymfony
Mayor's Office of New Urban Mechanics
Data
Exploring new approaches to civic life.
202320222021
javascriptpythondeep learningmachine learningruby1 more
Measurement Lab
Data
Providing Internet performance data since 2009.
2026
cssdatabasehtmljavascriptpython
Media Cloud
Other
Media Cloud is an open-source platform for media analysis.
2021
databasedevopsdockerfrontendjavascript3 more
MediaPipe
Media
Live ML anywhere
2021
androidc++iosjavascriptmobile1 more
Meshery
Infrastructure and cloud
the extensible, collaborative, Kubernetes manager
20262025
devopsgojavascriptkubernetesvisual design2 more
Metaflow
Infrastructure and cloud
A human centric machine learning framework
2026
devopsjavascriptkubernetespython
Micro Electronics Research Lab - UITU
Other
Accelerating Engineering Innovation
2025202420232022
HardwareProcessorRISCVmemorysystemonchip
Mobile Robot Programming Toolkit (MRPT)
Science and medicine
Empowering C++ development in robotics
201820172016
c++cmakecomputer visionmachine learningopencv8 more
Moira
Programming languages
Moira is a realtime alerting system based on Graphite data
20202019
gografanagraphitejavascripttypescript2 more
Monado
Media
Monado, the free and open source XR platform
2022
GraphicsXRgraphicsopenglopenxr1 more
Mono Project
Programming languages
Cross-platform C#/F#/.NET runtime and tools
2017
.netcc#f#
Named Data Networking Project
Web
A Content-Centric Future Internet architecture
2019
androidc#c++javajavascript1 more
Navidrome
Web
Modern music server and streamer compatible with Subsonic/Airsonic
2021
ffmpegfrontendgojavascriptreact
OSU Open Source Lab
Other
OSU Open Source Lab
2016
apijavascriptpythonrestruby
Open Data Kit
End user applications
Open Data Kit is used to collect data for social good in difficult environments.
201920182017
androidjavajavascriptmobilepython1 more
Open Detection
Other
Open Detection is a open source project for object detection and recognition.
20172016
cc++caffecmakecomputer vision3 more
Open HealthCare Network
Science and medicine
Reimagining Healthcare Delivery
202620252024
djangofrontendjavascriptnext.jspython2 more
Open Science Labs
Science and medicine
The community open to science and technology.
20262025
ASTc++devopsdockerjavascript2 more
Open States
Other
Open Source State Legislative Data
20182017
databasedjangojavascriptpostgresqlpython4 more
Open Transit Software Foundation
End user applications
Help make public transit better
202620252024
androiddevopsdockergoios2 more
Open3D team
Data
A Modern Library for 3D Data Processing
2022
c++cudadeep learningmachine learningparallel computing3 more
OpenAFS
Operating systems
An open source distributed filesystem.
202620252022
ansiblecdevopsfilesystemsgit4 more
OpenELIS Global
Science and medicine
Empowering labs to Ensure Quality Health Care
202620252024
backenddatabasefrontendjavajavascript3 more
OpenEMR
Science and medicine
OpenEMR is a leader in healthcare open-source software
2020
databasedevopsdockerhtmljavascript2 more
OpenHMD
Media
Multi-Platform Open Source driver for AR/VR/XR devices with stable ABI.
2020
c99computer visiongraphicslibusbmachine learning3 more
OpenKeychain (OpenPGP for Android)
Security
OpenKeychain: Easy PGP for Android
2016
androidmobileopenpgp
OpenMS
Science and medicine
OpenMS GSoC: Advancing Algorithms & AI for Biomedical Insights
2025
c++cythondeep learningmachine learningpython2 more
OpenMS Inc
Science and medicine
Advancing Algorithms & AI for Biomedical Insights
2026
Streamlitc++cythondeep learningmachine learning2 more
OpenMined
Programming languages
Lowering the barrier of entry to privacy preserving technology
20212020
deep learningdifferential privacyfederated learninghomomorphic encryptionmachine learning6 more
OpenSIPS
Social and communication
A multi-purpose Open Source SIP proxy/server for carriers, telecoms or ITSPs
2018
cdatabasemysqlpythonscripting
OpnTec
Social and communication
Developing Open Event Solutions for Everyone
2018
androidcloudemberjsjavascriptmobile1 more
Organic Maps
End user applications
Offline maps app for tourists, cyclers & hikers
2025202420232022
OpenStreetMapandroidc++iosjava1 more
Our World In Data
Science and medicine
Explaining the world's biggest problems with data
2022
d3data sciencedatabasemysqlpandas2 more
P2PSP.org
Media
Shaping the future Internet TV
201820172016
androidc++iosmobilepython5 more
PLASMA-UMass
Programming languages
PLASMA explores ways to make programming languages faster, safer, and easier.
2016
cc++gojavascriptscala
Percona
Data
Unbiased open source database experts.
20202019
databasejavascriptmysqlpostgresqlprometheus4 more
Pocket Science Lab
Science and medicine
Miniaturizing the Open Science Lab with Open Hardware and Open Source Software
2018
androidccadfirmwarejava1 more
Processing Foundation
Programming languages
To empower all people to learn to program
202620252023202220212020201920182017
androidgraphicsjavajavascriptmobile5 more
Qubes OS
Operating systems
A reasonably secure operating system
2026202120202017
clinuxpythonshellxen1 more
Quill.org
Web
Helping millions of learners become better writers and critical thinkers
2018
databasefrontendjavascriptpostgresqlreact2 more
RADAR-base
Science and medicine
Improve people's quality of life using patient generated data
2022
angulardevopsdockerfrontendjava3 more
Robolectric
Operating systems
Fast unit testing runtime for Android
20242022
androidasmjavajvmmobile
Rspamd
Security
Rspamd is an email framework and spam filter
202520182017
ccmakeluajavascriptmachine learning3 more
SQLancer
Data
Automatically testing database systems
20252023
databasejava
SW360
Web
Software supply chain management done right !
20262025
backendcouchdbfrontendjavajavascript3 more
Salesforce
Infrastructure and cloud
From the kernel to the browser, open source projects from Salesforce.
2019
frontendjavascriptnode.jsreactscala1 more
Scalable Parallel Computing Laboratory
Programming languages
High-performance computing for clusters and clouds
20242023
Serverlessawsc++cloudmpi1 more
SeaQL
Data
Building data intensive applications in Rust
2022
databasemysqlpostgresqlrustsqlite
Sigmah
End user applications
Java/GWT platform for humanitarian project management
20172016
gwtjavadatabasepostgresql
Society for Arts and Technology (SAT)
Media
Technological tools for creativity and industry
202520232022
c++graphicsjavascriptopenglpython3 more
Space @ Virginia Tech
Science and medicine
Space@VT is devoted to the investigation of the space environment.
2018
d3databasejavascriptmongodbmysql1 more
Stratosphere Laboratory, Czech Technical University in Prague
Data
Using machine learning and security to help others
20242023
backenddatabasedevopsdockerflask5 more
Streetmix
End user applications
Design, remix, and share your neighborhood street, all in your browser.
2018
databasefrontendjavascriptmongodbpostgresql2 more
SymbiFlow
Programming languages
A completely FOSS toolchain for FPGAs.
202120202019
fpgaverilogxilinxcc++1 more
Systers Community
Other
Helping women find their potential in code. You are not alone.
2018
androidiosjavascriptmobilepython1 more
TEAMMATES @ National University of Singapore
Web
An online feedback management system for education
201820172016
cssgoogle app enginehtmljavajavascript1 more
The P4 Language Consortium
Programming languages
Evolve the programmable data plane ecosystem!
202620252024
Z3c++ebpfllvmmlir2 more
The Perl Foundation
Programming languages
Devoted to the advancement of the Perl languages through discussion and code
2019
cperlperl5perl6regular expressions
The Postgres Operator
Data
A project to create an open-sourced managed Postgresql service for Kubernetes
2019
databasedevopsgokubernetesoperator2 more
The Qt Project
Programming languages
The Qt Project co-ordinates the development of the Qt software framework.
2018
c++graphicsopenglqmlqt
The Vega Project at the University of Washington
Web
Declarative formats & Applications for Creating, Saving & Sharing Visualizations
20192018
d3frontendjavascriptreacttypescript2 more
Tiled
End user applications
A flexible level editor for everyone!
20262017
c++gitgithubqt
Tungsten Fabric
Infrastructure and cloud
Secure software defined networking for any cloud, anywhere.
2019
cc++devopskuberneteslinux2 more
Uramaki LAB
End user applications
The User Experience LAB based on IA
202620252024
cloudcssfirebasehtmljavascript1 more
ViSP
Media
Visual tracking and visual servoing library
20182017
c++visionc
WorldBrain.io - Verifying the Internet
End user applications
Bookmarking extension that works like your brain - full-text search everything.
20182017
frontendjavascriptreactbrowser extensiondatproject
Xen Project
Infrastructure and cloud
Bringing the power of virtualization everywhere
2017
asm/c/c++free/netbsdlinuxocamlqemu
Xfce
Operating systems
Lightweight and flexible linux desktop environment
20222021
cgtkjavascriptpythonvala
Zendalona
End user applications
FOSS accessibility solutions for visually impaired
20252024
androidgtkjavascriptmobilepython1 more
Zenodo
Science and medicine
A free and open digital archive for the long-tail of science.
2017
angularbackenddatabaseelasticsearchflask5 more
dora-rs
End user applications
Simplify robotic apps with AI
20262025
Autonomous drivec++pythonrosrust
eunomia-bpf
Operating systems
Unleash eBPF Potential with our tools and runtimes
2024
ebpflinuxllvmwebassembly
languagetool.org
End user applications
Style and grammar checker
2018
aideep learningjavajavascriptmachine learning1 more
lowRISC
Other
Open to the core - collaborative engineering for open source silicon and tools
202020172016
c++chiselfpgalinuxverilog3 more
moja global
Data
Collaboration for change
2022
c++data sciencedevopsdockerjavascript1 more
oVirt
End user applications
Open virtual datacenter management for all
2017
javakvmpython
ownCloud
Infrastructure and cloud
A safe home for all your data
20172016
cssdatabasehtmljavascriptphp4 more
phpBB Forum Software
Social and communication
phpBB is the most widely used free and open-source forum solution.
20182017
cssdatabasejavascriptmysqlphp2 more
phpMyAdmin
Data
A web interface for MySQL written in PHP
201920182017
cakephpdatabasejavascriptjquerymysql4 more
vitrivr
Data
The multimedia search engine
202120182016
computer visiondatabasejavamachine learningweb10 more
wxWidgets
Programming languages
Library for creating portable native GUIs in C++
2017
c++cocoagtk+win32
xrdesktop
Media
XR for the Linux Desktop
2021
cglibgraphicsopenxrvulkan1 more
52°North Spatial Information Research GmbH
Science and medicine
Innovative ideas & technologies in geoinformatics
20262025202420232022202120202019201820172016
androidjavajavascriptmobileogc standards1 more
AFLplusplus
Security
State of the art fuzzing for better security
2026202520242023202220212020
fuzzingllvmqemurust
AOSSIE
End user applications
Australian Umbrella Org for Open-Source Projects
2026202520242023202220212020201920182017
androidblockchainflutterjavascriptmobile2 more
AboutCode
Security
Scan code for origin, license and vulnerabilities
202620252024202320222021202020192017
cdatabasedjangogojavascript3 more
Accord Project
Programming languages
Open source software for smart legal contracts
20262025202420212020
aifrontendjavascriptjsonmachine learning2 more
Amahi
Operating systems
Making Home Networking and Storage Simple
2020201920182017
androidgojavascriptmobileruby on rails3 more
AnkiDroid
End user applications
AnkiDroid makes remembering things easy
20262025202420222021
androidkotlinmobilerust
Apertium
Science and medicine
A free/open-source machine translation platform
20242023202120202019201820172016
bashc++javascriptpythonxml
ArduPilot
Science and medicine
World's most advanced autonomous vehicle software
2026202520242023202220212020201920182017
c++luapixhawkpython
BRL-CAD
Media
3D CAD & other computer-aided tech (CAx)
20262025202420232022202120202019201820172016
cc++graphicsopenclopengl2 more
Berkman Klein Center for Internet and Society
Other
Exploring cyberspace, sharing in its study, & helping to pioneer its development
2019201820172016
d3databaseelasticsearchjavascriptmeteor.js4 more
Blender Foundation
End user applications
The Freedom to Create
20262025202420232022202120202019201820172016
cc++graphicsopenglpython1 more
Boost C++ Libraries
Programming languages
Boost provides free peer-reviewed portable C++ source libraries
20212020201920182017
c++
CGAL Project
Science and medicine
C++ library of computational geometry
2026202520242023202220212020201920182017
c++qt
CNCF
Data
Building sustainable ecosystems for cloud native
2026202520242023202220212020201920182017
OpenTelemetrydevopsenvoykubernetesprometheus
CRIU
Operating systems
Chekpoint/Restore for Linux tasks and containers
20262025202420232022202120202019
cgolinuxpython
Center for Research in Open Source Software (CROSS)
Science and medicine
Amplifying Research Imapct through Open Source
2022202120192018
cc++javascriptpythonverilog5 more
Ceph Foundation
Data
The Future of Storage
202620252024202320222021202020172016
c++javascriptpython
CircuitVerse.org
Science and medicine
Build and learn logic circuits in the cloud!
20262025202420232022202120202019
frontendhtmljavascriptruby on railsvue.js1 more
CiviCRM
End user applications
Growing and sustaining relationships
20212020201920182016
angulardatabasefrontendjavascriptmysql1 more
CloudCV
Web
Building platforms for reproducible AI Research
202520242023202120202019201820172016
angularawsclouddevopsdjango4 more
Computational Biology @ University of Nebraska-Lincoln
Science and medicine
Tool development in bioinformatics, computational biology, data visualization
2019201820172016
databasefrontendjavajavascriptmysql7 more
Creative Commons
Web
Nonprofit building a global digital commons.
2024202320202019
djangofrontendjavascriptpythonvue.js3 more
D Language Foundation
Programming languages
Write fast, read fast, and run fast.
2026202520192016
bsddlanglinuxmacoswindows4 more
DBpedia
Data
Global and Unified Access to Knowledge Graphs.
20262025202420232022202120202019201820172016
javajavascriptpythonrdfscala
Dart
Programming languages
Dart is a client language for apps on any platform
2026202520242023202220212020
dartfluttermobile
Debian
Operating systems
The Universal Operating System
202620252024202220212020201920182016
c++javaperlpythonrust
FFmpeg
Media
Record, convert and stream audio & video
20262025202420232022202120202019201820172016
asmcgit
FOSSASIA
End user applications
Free and Open Source Software in Asia
2026202520242019201820172016
androidcdjangojavascriptmobile1 more
FOSSology
Web
Open Source License Compliance by OSS
202620252024202320222021202020192018
cc++databasegophp2 more
Fortran-lang
Programming languages
High-performance parallel programming language
202620252024202320222021
c++fortranpython
Free and Open Source Silicon Foundation
Other
Working together for Free and Open Source Silicon
20262025202420232022202120202019201820172016
compilerrisc-vverilogwebvhdl
FreeCAD
End user applications
Cross-platform 3D parametric modeler
2026202520242023
OpenCASCADEOpenInventorc++pythonqt
FreeType
Programming languages
FreeType is a software library to render fonts.
20242023202220212020201920182017
autotoolscmeson
GNOME Foundation
Operating systems
A diverse and sustainable free software desktop.
20262025202420232022202120202019201820172016
Flatpakcgtklinuxrust
GNSS-SDR
Science and medicine
An open source GNSS software-defined receiver
202520242022202120202019201820172016
cc++sdr
GNU Compiler Collection (GCC)
Programming languages
GNU compilers
202620252024202320222021202020192018
autotoolscc++gnu make
GNU Mailman Project
Social and communication
GNU Mailman manages your mailing lists.
2026202120192016
apidjangoemailpythonrest2 more
GNU Project
Operating systems
Development of the GNU Operating System
20262024202320202019201820172016
autotoolscc++gccGNU
GNU Radio
Science and medicine
The free & open software radio ecosystem
20262025202420232022202120202019201820172016
c++pythonqtsimd
Gentoo Foundation
Operating systems
A flexible, source-based Linux distribution.
20232022202120202019201820172016
bashcc++linuxpython1 more
GeomScale
Science and medicine
Scalable geometric and statistical software
2026202520242023202220212020
c++github-actionsjupyterpythonr
Git
Programming languages
Fast,Scalable,Distributed revision control system
20262025202420232022202120202019201820172016
cgitshell
GitLab
Infrastructure and cloud
Everyone can contribute
2025202320222021
frontendgojavascriptrubyruby on rails1 more
Godot Engine
End user applications
Multi-platform 2D and 3D game engine
20222021202020192018
cc++graphicsopenglvulkan2 more
Haiku
Operating systems
Operating system that targets personal computing.
202620242023202220212020201920182017
c++posixunix
Haskell.org
Programming languages
Purely functional programming language
20262025202420222021202020192018
ghchaskell
Hydra Ecosystem
Web
Automate REST APIs. Build next generation API clients.
2021202020192018
backenddatabaseflaskjavascriptpython8 more
IOOS
Science and medicine
Our eyes on the ocean, coasts, and Great Lakes
20262025202420222021
NetCDFZarrjavapythonr
Inkscape
End user applications
Draw freely!
2025202420232022202120202019201820172016
c++pythonsvg
Intel Video and Audio for Linux
Media
We enable Linux Audio and Video for Intel
202220212020201920182017
ffmpeggstreamerlibxcamsound open firmwarevaapi7 more
International Catrobat Association
Programming languages
Free visual coding apps for computational thinking
20262025202420232022202120202019201820172016
flutterjavascriptkotlinmobilephp2 more
Internet Archive
Science and medicine
Universal Access to All Knowledge
202620252024202320212020201920182017
databaseelasticsearchgohadoopjavascript1 more
JSK Robotics Laboratory / The University of Tokyo
Science and medicine
JSK is focusing on the fundamental functions & systems for intelligent robots
2019201820172016
lispopenhrpopenrtmprologros
JabRef e.V.
Science and medicine
Stay on top of your Literature
202620252024202220212019
aibibtexjavajavafxmachine learning
JdeRobot
Other
Toolkit for developing Robotics applications
2026202520242023202220212020201920182017
computer visiondeep learninggazebomachine learningopencv3 more
Jenkins
Programming languages
Jenkins, build great things at any scale
202620252024202320222020201920182016
devopsdockergojavajavascript1 more
Jitsi
Media
State-of-the-art video conferencing
202620252024202220182017
frontendjavajavascriptkotlinreact1 more
Joomla!
End user applications
The flexible platform empowering website creators.
20262025202220212019201820172016
cssdatabasehtmljavascriptmysql3 more
KDE Community
End user applications
Control your digital life
20262025202420232022202120202019201820172016
c++data structuresqmlqt
Kiwix
End user applications
Internet content available offline.
20262025202420232021202020192018
c++frontendjavascriptkotlinnode.js2 more
LLVM Compiler Infrastructure
Programming languages
LLVM Compiler Infrastructure
20262025202420232022202120202019201820172016
c++clangllvmmlir
LabLua
Operating systems
Programming Language Research with emphasis on Lua
202620252024202120202019201820172016
kernellualuarockslunatikpallene
LibreCube Initiative
Science and medicine
Open Source Space Exploration
2026202420222021
apidatabasemicropythonmongodbpython5 more
LibreHealth
Science and medicine
Healthcare for Humanity
20262023202220212020201920182017
androiddartflutterjavajavascript2 more
LibreOffice
End user applications
LibreOffice is a free and open source office suite
20262025202420232022202120202019201820172016
c++javapython
MDAnalysis
Science and medicine
Analysis of molecular simulations data with Python
2026202520242023202220212020
cc++cythonpython
MIT App Inventor
Development tools
Anyone can build apps with global impact
2026202520242023202220212020201920172016
gwtjavajavascriptswift
MacPorts
End user applications
Open Source package manager for macOS.
2020201920182017
frontendhtmljavascriptreacttcl6 more
Machine Learning for Science (ML4SCI)
Science and medicine
Machine learning applications in science
202620252024202320222021
aic++data analysismachine learningpython
MariaDB
Data
The fastest growing Open Source Database
20262025202420232022202120202019201820172016
cc++databasejavascriptperl1 more
Matrix.org
End user applications
Open, secure, decentralised communication
2022202120202019201820172016
frontendgojavascriptpythonreact3 more
MetaBrainz Foundation Inc
Data
Open music / book metadata, music recommendations
20262025202420232022202120202019201820172016
databasemachine learningperlpostgresqlpython1 more
MetaCall
Programming languages
Simplifying the embedding of programming languages
20262024202320222021
c++devopsdockernode.jspython1 more
Metasploit
Security
World’s most used penetration testing framework
2026202320222021202020182017
assemblycdatabasepostgresqlpython1 more
Mixxx
End user applications
DJ Mixing App With Powerful Features For All DJs
20262025202420222020201820172016
c++deep learningjavascriptmachine learningonnx2 more
Moodle
Social and communication
Empowering educators to improve our world
2019201820172016
databasejavascriptjquerymysqlphp4 more
MoveIt
Science and medicine
Moving robots into the future
20242023202220212020
c++rospythonrust
Mozilla
Web
Keeping the Internet open and accessible to all.
20202019201820172016
c++cssjavascriptpythonrust4 more
MuseScore
End user applications
The World’s Most Popular Music Notation Software
202420232022202120202019201820172016
c++cmakeqmlqt
Neovim
End user applications
hyperextensible Vim-based text editor
20262025202020192018
cluarpc
Netfilter project
Operating systems
Firewalling, NAT and packet mangling for Linux
2019201820172016
ckernellinux
OSGeo (Open Source Geospatial Foundation)
End user applications
The Open Source Geospatial Foundation
20262025202420232022202120202019201820172016
cc++javajavascriptpython
OWASP Foundation
Security
No more insecure software.
2026202520242023202220212020201920182016
Juice ShopZAPjavajavascriptpython
Open Bioinformatics Foundation (OBF)
Science and medicine
Open Source & Open Science in biological research
2022202120202019201820172016
cc++javascriptpythonfrontend5 more
Open Chemistry
Science and medicine
Advancing Open Source & Open Science for Chemistry
202420232022202120202019201820172016
c++graphicsjavascriptopenglpython
Open Food Facts
Science and medicine
Better food choices for your health & the planet
2026202520222018
deep learningfluttermachine learningmobileperl3 more
Open Genome Informatics
Science and medicine
Open access genomics and bioinformatics projects
2026202320222021202020172016
databasefrontendgraphjavascriptmysql4 more
Open Roberta
Programming languages
Open Roberta® Lab is an online IDE introducing kids to program robots with NEPO®
2021202020192018
javajavascriptc++gopython1 more
Open Robotics
End user applications
Open source robotics and a whole lot more!
2026202520242023202220212020201920182016
Open-RMFgazeboignitionrosc++2 more
Open Technologies Alliance - GFOSS
Science and medicine
Promote Open Standards and Open Source
202620252024202320222021201920182017
cc++javascriptmachine learningnode.js1 more
OpenCV
Media
++ beneficial uses of computer vision in society
202520242023202220212020201920172016
aic++deep learningmachine learningpython
OpenMRS
Science and medicine
Write Code, Save Lives.
20262025202420232022202120202019201820172016
databasefhirfrontendjavajavascript2 more
OpenStreetMap
Data
Create and distribute free geodata for the world
20262025202420232022202120202019201820172016
c++javajavascriptpythonrust3 more
OpenVINO Toolkit
Development tools
Make AI inference faster and easier to deploy!
20262025202420232022
armc++pythonx86
OpenWISP
End user applications
The Hackable Network Management System
2026202520242023202220212020201920182017
djangojavascriptluaopenwrtpython
Oppia Foundation
End user applications
Free platform for interactive, tutor-like lessons
20262025202420232022202120202019201820172016
angularapache beamfrontendgoogle app enginejavascript2 more
PEcAn Project
Science and medicine
Develop and promote tools for ecosystem modeling
2026202520242023202220212020201920182017
apidevopsdockergeospatialr
Performance Co-Pilot
Operating systems
System performance analysis
202220202019201820172016
cdatabasejavascriptlinuxpython7 more
Pharo Consortium
Programming languages
Modern and immersive programming language
202620252023202120192017
SUnitgitpharoroassalsmalltalk1 more
Plone Foundation
Web
Python-based CMS, with React front-end.
2025202420232022201820172016
frontendjavascriptpythonreact
PostgreSQL
Data
The Most Advanced Open Source Relational Database
2026202520242023202220212020201920182017
cdatabasegojavascriptpostgresql1 more
Public Lab
Science and medicine
Tools for communities to measure pollution
202220212019201820172016
javascriptnode.jsraspberry piruby on rails
Python Software Foundation
End user applications
A programming language used for science & more
20262025202420232022202120202019201820172016
javascriptpython
QEMU
Infrastructure and cloud
Open source machine emulator and virtualizer
2026202520232022202120202019201820172016
clinuxpythonrust
R project for statistical computing
Science and medicine
R software for statistical computing & graphics
20262025202420232022202120202019201820172016
cc++fortranjavascriptr
RTEMS Project
Operating systems
A real-time operating system for Earth & Space
20262025202420232022202120202019201820172016
assemblycc++posixpython
Radare
Security
Radare2 - Reverse Engineering Framework and Toolset
2020201820172016
cnode.jspythonrustc++2 more
ReactOS Foundation
Operating systems
Open your windows to freedom!
2022202120202019201820172016
cc++ntwin32
Red Hen Lab
Data
Research on Multimodal Communication
202420232022202120202019201820172016
computer visiondata sciencemachine learningnlppython1 more
Rizin
Security
Rizin reverse engineering framework and toolset
202620252024202320222021
cc++gopythonqt
RoboComp
Other
Open-source framework to develop robot components
2022202120202019201820172016
c++component-based developmentcomputer visionmachine learningopencv4 more
Ruby
Programming languages
Ruby is an object-oriented programming language
20262023202220212020201920182016
bundlerrubyruby on railsrubygemsc1 more
Ruby Science Foundation
Science and medicine
Tools for scientific computation in Ruby
2019201820172016
datagpurubyscienceweb6 more
SCoRe Lab
End user applications
SCoRe Lab develops FOSS softwares for everyone!!!
20232022202120202019201820172016
androidgomobilenode.jspython4 more
SPDX
Other
An open ISO standard for SBOMs
2023202220212020201920182017
gojavajsonpythonrdf
SageMath
Science and medicine
Open-source mathematics software system
20262025202420232022202120202019201820172016
cythonpython
Samba
Other
Opening windows to a wider world
2021202020192017
csmbcifspython
Scala Center
Programming languages
Guide and support the Scala community
20252024202320222021201820172016
scalascala nativescala.jsfunctional programmingjvm
ScummVM
End user applications
Adventure and RPG preservation project
20262025202420232022202120202019201820172016
assemblyc++graphicsopenglphp2 more
Software and Computational Systems Lab at LMU Munich
Programming languages
Algorithms and Tooling for Software Verification
20252024202320192018
javapythonQuarkusapigrpc1 more
Ste||ar group
Science and medicine
Shaping a Scalable Future
2026202520242023202220212020201820172016
c++hpc
Submitty
End user applications
Homework Autograding and Course Management Tools
2026202420232022202020192018
c++databasejavascriptphppostgresql1 more
Sugar Labs
End user applications
Learning software for children
20262025202420232022202120202019201820172016
gtkjavascriptllmpythontypescript
Swift
Programming languages
Fast, safe, and expressive programming language
202620252024202320222021202020192018
c++cmakeswift
SymPy
Science and medicine
SymPy is a Python library for symbolic mathematics
20262025202420232022202120202019201820172016
data sciencejupyternumpypython
Synfig
Media
Open-source 2D animation software
20262025202420232022202120202019
c++gtkgtkmmpython
TensorFlow
Data
TensorFlow is a ML framework for everyone.
20232022202120202019
cc++deep learningjavascriptmachine learning5 more
The Center for Connected Learning and Computer-Based Modeling
Programming languages
NetLogo: A language and IDE for programming and scientific simulations
2019201820172016
htmljavascriptscalacss
The ENIGMA Team
Programming languages
A free rapid game development environment.
2024202320222021
c++graphicsopenglqtrecursive-descent
The FreeBSD Project
Operating systems
An OS for servers to embedded devices
20262025202420232022202120202019201820172016
POSIX shellassemblycgnu makellvm
The Honeynet Project
Security
Honeypots and Threat Intelligence R&D
20262025202420232022202120202019201820172016
devopsdjangodockergojavascript1 more
The JPF team
Programming languages
JPF is a Java VM used to verify and debug software
20262025202420232022202120202019201820172016
androiddistributed systemsjavajvmmobile
The Julia Language
Science and medicine
A fresh approach to technical computing
2026202520242023202220212020201920172016
compilersdata sciencegarbage-collectionjuliamachine learning
The Libreswan Project
Security
Encrypting the Internet with IKE / IPsec VPN
2026202220212020201920182017
ckvmnamespacespythonRFCs4 more
The Linux Foundation
Operating systems
Non-profit consortium fostering growth of Linux
20262025202420232022202120202019201820172016
aiccupsfuzz-testinglinux1 more
The Mifos Initiative
End user applications
End Poverty One Line of Code at a Time
2026202520242023202220202019201820172016
androidangularbackendfrontendjava4 more
The NetBSD Foundation
Operating systems
Of course it runs NetBSD
20262025202420232022202120202019201820172016
bsdcgnu makeshellunix
The Palisadoes Foundation
Social and communication
Social media and member management for non-profits
20252024202320222021
apidatabasefluttergraphqlmobile4 more
The Terasology Foundation
End user applications
Voxel world game/engine with a large focus on extensibility and developer tools
202120202019201820172016
blendergradlegraphicsjavalwjgl3 more
The Tor Project
Web
Defend yourself against tracking and surveillance.
20252023202220172016
cpythonrustweb
The Wine Project
Other
Wine runs Windows applications on Linux, BSD, Solaris, macOS and Android.
20202019201820172016
cdirectxgraphicsopenglwin322 more
The ns-3 Network Simulator Project
Science and medicine
ns-3 is a simulation tool for computer networks.
2026202520242023202220212020201920182017
c++djangopython
Unikraft
Operating systems
A Fast and Secure Unikernel SDK
20262025202420232022
assembly languagecgokvmxen
Wikimedia Foundation
Web
Bringing free educational content to the world
2026202420232022202120202019201820172016
csshtmljavascriptphppython
X.Org Foundation
Media
X Window System and related projects (Mesa, DRI, Wayland, etc.)
2023202220202019201820172016
graphicsopenclopenglvulkanwayland2 more
XMPP Standards Foundation
End user applications
XSF develops an open-standard messaging protocol
202420232022202020192017
gojavajavascriptvalaxmpp5 more
XWiki
Web
The Advanced Open Source Enterprise Wiki
20232022202120202019201820172016
csshtmljavajavascriptvelocity
Xapian Search Engine Library
Data
Fast, scalable and flexible search
20202019201820172016
c++golinuxswigunicode
Zulip
End user applications
Organized chat for distributed teams
20262025202420232022202120202019201820172016
cssdjangofluttermobilepython1 more
aimacode
Programming languages
Code for the book "Artificial Intelligence: A Modern Approach"
2019201820172016
aijavajavascriptmachine learningpython1 more
appleseed
Media
A modern open source rendering engine for animation and visual effects
2020201920182017
cc++qtgraphicsopengl1 more
caMicroscope
Science and medicine
Toolkit for cancer imaging research
2024202320212020
databasedeep learningjavascriptmachine learningmedical imaging6 more
checkstyle
Programming languages
Helps to adheres of Java coding standard
20262025202420232022202120202017
aiantlrjavamachine learning
coala
Programming languages
Linting and Fixing Code for All Languages
2021201920182017
antlrdjangoemberjsfrontendjavascript7 more
coreboot
Operating systems
Fast, secure and flexible BIOS firmware
20232022202020192016
armassemblycx86
freifunk
Operating systems
Free and open wireless networks
202520242023202220212019201820172016
cjavascriptlinuxopenwrtpython1 more
gprMax
Science and medicine
Simulating electromagnetic wave propagation
202620252024202320212019
cudampiopenclopenmpparallel computing1 more
libssh
Programming languages
The SSH library
20262025202420232022
ccigitsftpssh
libvirt
End user applications
Virtualization abstraction library
20242022202120202019201820172016
hypervisorkvmxenlxcqemu
mlpack
Science and medicine
a fast, flexible machine learning library
202420232022202120202019201820172016
c++
omegaUp
End user applications
Open CS Education as a catalyst for social change
202620252024202320222018
databasefrontendjavascriptmysqlphp3 more
openSUSE Project
Operating systems
Makers' choice for sysadmins, developers & users
2026202520242023202220212020201820172016
cc++frontendgojavascript3 more
rocket.chat
Social and communication
Open source communications platform for the AI age
2026202520242023202220212020201920182017
aijavascriptllmmachine learningnode.js1 more
strace
Development tools
Linux syscall tracer
2022202120202019201820172016
awkcgnu makelinuxshell3 more
syslog-ng
Data
Enhanced log daemon, w/ wide range of I/O methods
202220212020201920182016
cdatabaseelasticsearchkafkapython
AerospaceResearch.net
Science and medicine
making space together
20212020201920182017
boinccc++javapython6 more
Alaska
Science and medicine
Many Traditions, One Alaska
202620252024
databasedicomjavamatlabmysql1 more
Apache DataFusion
Data
Foundational library for DBs and compute engines
2025
arrowdatabasepythonrust
Apertus Association
Science and medicine
open source cinema
202220212020201920182017
cc++embeddedfpgalinux4 more
Audacity
End user applications
Free, open source, cross-platform audio software
20222021
c++VSTcmakeqtwxwidgets
BeagleBoard.org
Science and medicine
Open hardware computing for educators and makers
2025202420232022202120202019201820172016
Zephyr RTOSdspfpgalinuxrisc-v
Beam Community
Programming languages
From distributed systems, to robust servers and language design on the Erlang VM
201820172016
beamelixirerlangmqttxmpp1 more
BioJS
Science and medicine
BioJS is an open source project that visualizes biological data using JavaScript
2016
javascriptpython
Buildroot
Programming languages
Making Embedded Linux easy
2019
gnu makekconfigpythonshell
CCExtractor Development
End user applications
TV, Rust, Flutter, Linux, VR and C. In any order.
20262025202420232022202120202019201820172016
cflutterlinuxmobilerust
CERN-HSF
Science and medicine
Umbrella for Particle Physics-related projects
2026202520242023202220212020201920182017
aicc++container orchestrationdata analysis2 more
CHAOSS
Data
Community Health Analytics Open Source Software
202520222021202020192018
elkfossologyfrontendjavascriptnltk7 more
Canadian Centre for Computational Genomics
Science and medicine
Analytical solutions for Next-Generation Sequencing data
2020201920182016
awkbashperlpythonr4 more
Center for Translational Data Science
Science and medicine
Develop translational data science.
20252022
awscloudpythondatabasedevops5 more
Chapel
Programming languages
A Productive Parallel Programming Language
20212020201920172016
cc++chapelhigh performance computingpython
Checker Framework
Security
Prevent programming errors via simple verification
20252020201920182017
javacompilersformal methodstype systems
Computational Science and Engineering at TU Wien
Science and medicine
We bundle TU Wien's open source efforts in the area of science and engineering
2016
c++csshtmljavajavascript
Continuous Delivery Foundation
Programming languages
Open-source community seeking to deliver software with security & speed
20212020
cdcidevopsscrewdriverspinnaker4 more
Cuneiform Digital Library Initiative (CDLI)
Science and medicine
Curating humanity’s earliest written history
202620222021202020192018
databasejavajavascriptmysqlphp5 more
DatenLord
Data
High-performance AI+Cloud infrastructure provider.
2024
Distributed key-value storeMetadata managementdevopskubernetesrust
Department of Biomedical Informatics, Emory University
Security
Biomedical research to advance healthcare
20252024202320222021
dicomjavajavascriptpythonbash1 more
Digital Impact Alliance (DIAL) at UN Foundation
Other
Open source projects for humanitarian work, international development, and peace
2021202020192018
androidjavajavascriptmobilephp3 more
Distributed and Unified Numerics Environment (DUNE)
Science and medicine
DUNE is a modular toolbox for solving PDEs with grid-based methods.
2016
c++cmakepython
Django Software Foundation
Web
Web framework for perfectionists with deadlines
20262025202420232022202120202019201820172016
djangopython
Drupal Association
Web
Build Bold Digital Experiences on Best Open Source
2026202520242023202220202019201820172016
databasehtmljavascriptmysqlphp1 more
Eclipse Foundation
Programming languages
The Global Open Source Foundation
2026202520242023202220202019201820172016
eclipsejavaidejakartaeejavartossoftwaredefinedvehicles
Eclipse Vert.x
Programming languages
Eclipse Vert.x is a tool-kit for building reactive applications on the JVM
20172016
groovyjavajavascriptmicro-servicesreactive4 more
Electron
End user applications
Cross-platform desktop apps with web technologies
202520242022
c++chromiumjavascriptnode.jstypescript
FOSDEM
Programming languages
The organization that handles all aspects of the FOSDEM conference
201920172016
databasegitpostgresqlruby on railscss5 more
FRRouting
Other
Routing suite including BGP, IS-IS, LDP, OSPF, PIM
202220212020
ckernellinuxluanetworking1 more
Fedora Project
Operating systems
Freedom, Friends, Features, and First.
202520202019201820172016
angularapicssfrontendgo10 more
Forschungszentrum Jülich
Science and medicine
Shaping change: open source for Big Science
2022
deep learninggpuhigh performance computingmachine learningmpi2 more
GENIVI Alliance
Other
Developing open software for IVI and the connected car.
201920182017
cc++linuxqtyocto4 more
GNU Octave
Science and medicine
Free Your Numbers
20262025202420232022202120202019201820172016
c++hg
GRAME
Programming languages
Domain specific language for audio
20262025202420232022
cc++javascriptrusttypescript
Genes, Genomes and Variation
Science and medicine
Authoritative databases of genome sequences and their function
2019201820172016
databasejavascriptmysqlperlapi2 more
Genome Assembly and Annotation
Science and medicine
Unleashing the potential of big data in biology
2026202320222021
databasedeep learningdevopsdockermachine learning4 more
Global Alliance for Genomics and Health
Science and medicine
We develop genomics tools to benefit human health
2026202420232022202120202019201820172016
databasefrontendjavajavascriptpostgresql3 more
Google DeepMind
Artificial Intelligence
Google DeepMind's open-source projects
2025
Gemmadeep learningjavascriptjaxmachine learning2 more
Homebrew
Programming languages
The Missing Package Manager for macOS (or Linux)
20222020201820172016
bashgitmacosrspecruby1 more
INCF
Science and medicine
An open & FAIR neuroscience standards organization
20262025202420232022202120202019201820172016
c++gpujavajavascriptpython
Inria Foundation
Science and medicine
SOFA is an efficient simulation engine for research in medical simulation.
2018
asmcc++communication protocolqt1 more
JBoss Community
Web
Community of projects around JBoss Middleware
20262022202120202019201820172016
devopsgojavakubernetesnode.js5 more
Joplin
End user applications
The secure note taking application
20262024202220212020
electronfrontendjavascriptmobilereact2 more
Kapitan
Programming languages
Templated configuration management for Kubernetes, Terraform and other things
20202019
devopsjinja2jsonnetkubernetespython1 more
Kodi
End user applications
The ultimate entertainment center
202220212020201920182017
c++databaseffmpegmysqlpython3 more
KubeVirt
Infrastructure and cloud
Building a virtualization API for Kubernetes
2026202520242023
apigogrpc
Kubeflow
Infrastructure and cloud
The Machine Learning Toolkit for Kubernetes (AI)
2026202520242020
YAMLdevopsgokubernetespython1 more
Linkerd
Infrastructure and cloud
Linkerd is the ultralight service mesh for Kubernetes and beyond
20202019
devopsfrontendgojavascriptkubernetes4 more
Liquid Galaxy project
Data
We code immersive and interactive apps with GEarth
2026202520242023202220212020201920172016
androidflutterlinuxmobilenode.js
MBDyn
Science and medicine
Open Source Multibody Simulation
20252024202220212020201920172016
c++python
MalariaGEN
Science and medicine
The Malaria Genomic Epidemiology Network
2026
GCSpython
McGill Space Institute
Science and medicine
Center bringing together scientists doing space-related research at McGill
2016
big datadatabasepython
National Resource for Network Biology (NRNB)
Science and medicine
Developing open source tools for network biology
20262025202420232022202120202019201820172016
csshtmljavascriptjsonpython1 more
Neuroinformatics Unit
Science and medicine
Open-source tools for neuroscience and ML
20262025
data sciencedeep learningmachine learningnaparinumpy3 more
Nmap Security Scanner
Security
Swiss Army knife of network discovery and security auditing
20172016
cc++luapython
NumFOCUS
Science and medicine
NumFOCUS promotes open source scientific software.
20262025202420232022202120202019201820172016
c++juliapythonr
Open Chromosome Collective
Science and medicine
Open-Source Tools for 3D Genomics Research
2024
HDF5data sciencemachine learningnumpypandas2 more
Open Climate Fix
Science and medicine
Using Computers to Fix Climate Change
20252024
deep learningmachine learningpythonpytorch
Open Ephys
Science and medicine
Open-source electrophysiology
2016
c++juce
Open Science Initiative for Perfusion Imaging
Science and medicine
Open access resources for perfusion imaging
202620252024
gitgithubpython
OpenAstronomy
Science and medicine
Look at the Universe with the power of Open Source
20262025202420232022202120202019201820172016
cc++juliapython
Orange – Data Mining Fruitful & Fun
Science and medicine
A cross-platform, visual-programming tool for data mining and visualization.
2016
cythonmachine learningpythonqt
Orcasound
Science and medicine
Humans & AI listening together to save the whales.
202220212020
elixirfrontendjavascriptpythonraspberry pi2 more
Physical Web Project
Other
Physical Web GSoC project based on the Physical Web
20172016
arduinobeaconsinternet of thingspythonbeacon3 more
Pidgin Instant Messenger
Social and communication
A universal chat client.
2021
cgstreamergtk
Point Cloud Library
Science and medicine
Standalone, large scale, open project for 2D/3D image and point cloud processing
20212020
c++cmakedevopscomputer visioncuda3 more
Polypheny
Data
The Most Versatile Data Management Platform
202420222021
angulardatabasefrontendjavajavascript
Postman
Data
The Future is API-First
2024202320212020
apigraphqljavascriptnode.jsopenapi3 more
Probot
Programming languages
Automate and improve GitHub workflows
2018
gitgithubjavascriptnode.js
Project PANOPTES
Science and medicine
Discover New Worlds
2019
arduinocloudpython
Prometheus-Operator
Infrastructure and cloud
Managing Prometheus atop Kubernetes
20252024
devopsgokubernetesprometheus
Purr Data
End user applications
Realtime Audio/Visual Programming Environment
2024202320222021202020192018
Emscriptenchtmljavascript
QC-Devs
Science and medicine
Sustainable software for quantum chemistry & more
202620252024
c++gitgithubjuliajupyter1 more
React Native Elements
Programming languages
Cross Platform React Native UI Toolkit
2021
frontendjavascriptmobilereactreact native
Read the Docs
Programming languages
Documentation Simplified
20192018
databasedjangoelasticsearchjavascriptpython1 more
Responsible AI and Human Centred Technology
Science and medicine
Human-centered and responsible AI for all
2022
javascriptpython
Scilab
End user applications
Cross-platform numerical computational package and programming language.
201820172016
cc++fortranjavascilab3 more
Shaka Player
Media
An open-source JavaScript library to play adaptive media.
2021
javascriptpythonui/uxvideo codecsweb
Shogun
Science and medicine
Unified and efficient Machine Learning
2020201920172016
cc++cmakemachine learningpython3 more
Software Heritage
Data
The universal source code archive
202220212019
databasedjangogitjavascriptpostgresql2 more
Soletta Project
Programming languages
Soletta Project is an open source framework for making IoT applications
2016
cjavascriptmachine learningnetworkingpython
St. Jude Children's Research Hospital
Science and medicine
Find cures. Saving children.
20262025
WDLrustpythonsimd
Stemformatics
Science and medicine
Stemformatics is a web-based pocket dictionary for stem cell scientists.
2018
databasejavascriptpostgresqlpython
Stony Brook University Biomedical Informatics
Science and medicine
Advance biomedical knowledge through innovative data science research
201820172016
big databioinformaticshadoopmedical imagingc++4 more
Systers, an Anita Borg Institute community
Other
Helping women find their potential in code.
20172016
androiddatabaseiosmobilemysql4 more
TARDIS RT Collaboration
Science and medicine
Exploring supernovae made easy
20262025202420232022
data sciencejupyternumbanumpypandas1 more
TARDIS SN
Science and medicine
Exploring supernovae made easy
202120202016
ccythonpythondata sciencejupyter3 more
Tarantool
Data
Lighting fast in-memory DBMS with JIT onboard
20222021
cdatabaseluac++python
The Apache Software Foundation
Web
Open source software to the public free of charge
20262025202420232022202120202019201820172016
cc++java
TimVideos.us
Media
Software & hardware for recording + streaming conferences, meetings, user groups
2019201820172016
cfpgapythonverilogvhdl
Timelab Technologies Ltd.
End user applications
We help scientists understanding information in time-series
2016
javascriptpython
UC OSPO
Science and medicine
Amplifying Research Impact through Open Source
2026202520242023
VLSIcc++javascriptmachine learning3 more
UCSC Xena
Science and medicine
Helping biologists see the bigger picture in diverse cancer genomics data
201920182017
clojured3frontendjavascriptpython2 more
VideoLAN
End user applications
Open Source Multimedia for everyone!
20262025202420232022202120202019201820172016
assemblycc++qtvideo
WSO2
Other
Comprehensive and open source middleware platform that spans the breadth of SOA
20172016
distributed computingjavamiddlewaresoaweb
Wayland
Media
Wayland is a protocol for windowing systems on both desktops and embedded
2016
cgraphicskmsopenglwayland1 more
Wellcome Sanger Tree of Life
Science and medicine
Genome analysis for all species
202520242022
javascriptnextflowpythonrustcloud2 more
ZynAddSubFX
Media
An open source musical software synthesizer with a wide range of possibilities
2019
cc++graphicsmidiopen-sound-control2 more
cBioPortal for Cancer Genomics
Science and medicine
Aid discovery in complex cancer genomics data
20262025202420232022201920172016
databasefrontendjavajavascriptmysql2 more
gRPC
Infrastructure and cloud
A high performance, open-source universal RPC framework
20182016
distributed systemshttp/2micro-servicesnetworkingscalability4 more
kro | Kube Resource Orchestrator
Infrastructure and cloud
Simplify Kubernetes API and resource management.
2025
CELcontroller-runtimedevopsgokubernetes1 more
preCICE
Science and medicine
The coupling library for multi-physics simulations
2026
cc++pythonshell
sktime
Data
A unified framework for ML with time series
20242022
gitgithubmachine learningpythonscikit-learn1 more
stdlib
Science and medicine
The fundamental numerical library for JavaScript
202620252024
cjavascriptnode.jstypescriptwebassembly
webpack
Web
webpack is the module bundler for web projects
202620252024202020192018
javascriptnode.jstypescript
xpra
Media
screen for X11, remote access for MS Windows and Mac OS
20192018
compressioncythonjavascriptpythonremote access1 more