522 organizations since 2016

• 

  Beam Community

  Programming languages

  From distributed systems, to robust servers and language design on the Erlang VM

  2026

  –

  Cycles

  3

  Projects

  19

  Trend

  XmppErlangElixirBeam+2
• 

  caMicroscope

  Science and medicine

  Toolkit for cancer imaging research

  2026

  –

  Cycles

  4

  Projects

  13

  Trend

  PythonJavaScriptJavaTensorFlow+4
• 

  Casbin

  Web

  Authorization library that supports RBAC and ABAC

  2026

  –

  Cycles

  3

  Projects

  22

  Trend

  PythonJavaScriptGoReact+6
• 

  Ceph Foundation

  Data

  An open-source storage platform that implements storage on a single distributed computer cluster and provides a 3-in-1 interface for object-, block- and file-level storage.

  2026

  3

  Cycles

  9

  Projects

  34

  Trend

  PythonCC++Object-storage+5
• 

  CNCF

  Data

  Cloud Native Computing Foundation (CNCF) serves as the vendor-neutral home for many of the fastest-growing open source projects, including Kubernetes, Prometheus, and Envoy.

  2026

  5

  Cycles

  10

  Projects

  118

  Trend

  PrometheusGoKubernetesFluentd+8
• 

  Continuous Delivery Foundation

  Programming languages

  Open-source community seeking to deliver software with security & speed

  2026

  –

  Cycles

  2

  Projects

  9

  Trend

  TektonSpinnakerCI/CDScrewdriver+3
• 

  CRIU

  Operating systems

  CRIU (stands for Checkpoint/Restore In Userspace), is a Linux software. It can freeze a running container (or an individual application) and checkpoint its state to disk. The data saved can be used to restore the application and run it exactly as it was during the time of the freeze. Using this functionality, application or container live migration, snapshots, remote debugging, and many other things are now possible. CRIU is packaged for all leading Linux distributions and it is integrated wit lots of popular projects such as Docker, Podman, LXC/LXD, OpenVZ, runc, open-mpi and others

  2026

  4

  Cycles

  8

  Projects

  22

  Trend

  LinuxDockerContainersKernel+5
• 

  Debian

  Operating systems

  The Debian Project is an association of Free Software developers who volunteer their time and effort in order to produce and maintain a completely free operating system Debian. Since its launch, the Debian project has grown to comprise more than 1,000 members with official developer status, alongside many more volunteers and contributors. Today, Debian encompasses over 50,000 packages of free, open source applications and documentation.

  2026

  7

  Cycles

  9

  Projects

  85

  Trend

  CPythonDjangoRuby+7
• 

  Department of Biomedical Informatics, Emory University

  Security

  Biomedical research to advance healthcare

  2026

  –

  Cycles

  5

  Projects

  27

  Trend

  PythonJavaTensorFlowMedical Imaging+6
• 

  Drupal Association

  Web

  Drupal is a powerful Content Management System (CMS) and framework built on PHP, used globally by governments, universities, and businesses to build complex websites and applications, offering unmatched flexibility, security, and scalability through its modular architecture (modules and themes) and community-driven development.

  2026

  6

  Cycles

  10

  Projects

  45

  Trend

  JavaScriptHTML5SQLPHP+9
• 

  Eclipse Foundation

  Programming languages

  The Eclipse Foundation provides our global community of individuals & organizations with a mature, scalable, and business-friendly environment for OSS collaboration and innovation.

  2026

  6

  Cycles

  10

  Projects

  74

  Trend

  CC++JavaGeospatial+15
• 

  FOSSASIA

  End user applications

  FOSSASIA is an organization developing Open Source software applications and Open Hardware together with a global community from its base in Asia. It is our goal to provide access to open technologies, science applications and knowledge that improve people's lives. We want to enable people to adapt and change technology according to their own ideas and needs and validate science and knowledge through an Open Access approach. FOSSASIA was established 2009 by Hong Phuc Dang and Mario Behling. We organize and participate in conferences, meetups and code camps. The annual FOSSASIA Summit is one of the top tech events in Asia. Other summits take place in Vietnam, Cambodia, Thailand and India. FOSSASIA also runs a number of coding programs such as Codeheat. Please join us and start contributing to our projects, participate as a coder, designer, hardware developer or event organizer.

  2026

  24

  Cycles

  7

  Projects

  164

  Trend

  PythonJavaScriptAndroidJava+6
• 

  Genome Assembly and Annotation

  Science and medicine

  EMBL-EBI is a global centre for biological data, developing and maintaining open data resources and open-source software that support life science research worldwide. Our services are used daily by researchers across academia, healthcare, and industry, and span genomics, transcriptomics, metagenomics, molecular interactions, chemistry, and functional annotation.

  2026

  7

  Cycles

  4

  Projects

  21

  Trend

  PythonMySQLJavaScriptRust+3
• 

  GitLab

  Infrastructure and cloud

  Everyone can contribute

  2026

  –

  Cycles

  4

  Projects

  15

  Trend

  RubyGoGitCI+5
• 

  Global Alliance for Genomics and Health

  Science and medicine

  The Global Alliance for Genomics and Health (GA4GH) was formed to help accelerate the potential of genomic medicine to advance human health. It brings together over 400 leading genome institutes and centers with IT industry leaders to create global standards and tools for the secure, privacy respecting and interoperable sharing of Genomic data.

  2026

  4

  Cycles

  10

  Projects

  49

  Trend

  PythonJavaSQLProtobuf+10
• 

  JBoss Community

  Web

  JBoss Community is a community of open source projects. The community hosts a diverse set of projects that are written in various programming languages. The primary language is Java, however there are also projects that are written in Go, Rust, Ruby, PHP, Node and other languages.

  2026

  8

  Cycles

  8

  Projects

  60

  Trend

  AndroidJavaIDEAsciidoctor+11
• 

  LibreOffice

  End user applications

  LibreOffice is a modern Free & Open Source Office suite, one of the largest open source projects, and used by millions of users worldwide. LibreOffice is compatible with many file formats like Microsoft® Word, Excel, PowerPoint and Publisher. At its heart though, LibreOffice is built around an open standard, the OpenDocument Format, as its native file format. LibreOffice is developed by users who, just like you, believe in the principles of Free Software and in sharing their work with the world in non-restrictive ways. The development of LibreOffice is supported by The Document Foundation which provides the infrastructure for the project. We believe that users should have the freedom to run, copy, distribute, study, change and improve the software that we distribute. While we do offer no-cost downloads of the LibreOffice suite of programs, Free Software is first and foremost a matter of liberty, not price. We campaign for these freedoms because we believe that everyone deserves them. Though the members of our community hail from many different backgrounds, we all value personal choice and transparency, which translates practically into wider compatibility, more utility, and no end-user lock-in to a single product. We believe that Free Software can provide better-quality, higher-reliability, increased-security, and greater-flexibility than proprietary alternatives. LibreOffice is a large project (approx. 6MLOC), which makes it interestingly complex, but at the same time, provides a place for all sorts of contribution & skills. The community behind LibreOffice is the heart of the project, without which we would not have the resources to continue developing our software. The passion and drive that every individual brings to the community results in collaborative development that often exceeds our own expectations. With tons of different roles in the project, we invite everyone to join us in our work and help us to make LibreOffice known, prosper, and accessible to all.

  2026

  3

  Cycles

  11

  Projects

  68

  Trend

  PythonAndroidJavaOpenGL+1
• 

  libvirt

  End user applications

  Virtualization abstraction library

  2026

  –

  Cycles

  8

  Projects

  19

  Trend

  CXenQemuContainers+5
• 

  MariaDB

  Data

  MariaDB Foundation is the non-profit organization behind MariaDB Server, the fastest growing open source databases. MariaDB Foundation's mission is to ensure the continuity of the MariaDB Server code as well as foster and facilitated collaboration within the MariaDB ecosystem. As part of GSoC, MariaDB Foundation seeks to bring more developers into the MariaDB Server (and related projects) code base.

  2026

  8

  Cycles

  11

  Projects

  47

  Trend

  CMySQLMariaDBPerl+6
• 

  MetaCall

  Programming languages

  When working with different technologies and developers of different programming languages, the productivity of the entire team worsens due to the lack of interoperability and communication between them. If the developers need two technologies which are written in different programming languages, for instance, a C/C++ library called from NodeJS, the team usually needs to port to one of the two languages or write a wrapper around them. Maintaining a port of a library or the plumbing code is frequently error-prone, time-consuming, and does not add any value to the final product.

  2026

  6

  Cycles

  5

  Projects

  25

  Trend

  PythonJavaScriptCC+++6
• 

  Open Data Kit

  End user applications

  Open Data Kit is used to collect data for social good in difficult environments.

  2026

  –

  Cycles

  3

  Projects

  5

  Trend

  PythonJavaScriptAndroidJava+1
• 

  Open Genome Informatics

  Science and medicine

  The Open Genome Informatics group represents an umbrella organization consisting of several open source and open access genomics and bioinformatics projects worldwide. Our goals are to develop and maintain a collection of sustainable software tools for managing, analyzing, visualizing, storing, and disseminating genomic data.

  2026

  3

  Cycles

  7

  Projects

  31

  Trend

  PythonJavaNode.jsGwt+8
• 

  Open Technologies Alliance - GFOSS

  Science and medicine

  Open Technologies Alliance (GFOSS) is a non-profit organization, with 37 Universities and Research Centers as its shareholders. Our main goal is to promote Openness. GFOSS – Open Technologies Alliance is a platform for Open Standards, Free Software, Open Content, Open Data & Open Hardware in Greece. The major Greek Universities and Research Centers participate in GFOSS – Open Technologies Alliance, while leading members of the Greek community of developers play a key role in the implementation of our policies. Through our initiatives we aspire to contribute and coordinate the efforts of groups of volunteers, public servants, university researchers and students enabling them to form the backbone of Greek FOSS development and implementation. GFOSS is one of the strategic actors for the promotion of OSS throughout Greece (see https://joinup.ec.europa.eu/sites/default/files/inline-files/OSS%20Country%20Intelligence%20Report_GR.pdf ). Many public administrations and academic institutions collaborate with GFOSS to implement open source projects and through Google Summer of Code we give the opportunity to students to actively engage in the production and the actual implementation of an open source project. GFOSS also contributes and advises on the development of various open source projects related to e-government and digital transformation in Greece (e.g. https://howto.gov.gr/ - https://forma.gov.gr/) and actively promotes the use of Open Source software and hardware in the Greek primary and secondary education through the Open Educational Technologies Competition (https://openedtech.ellak.gr/ )

  2026

  7

  Cycles

  9

  Projects

  77

  Trend

  PythonMySQLJavaPHP+16
• 

  OWASP Foundation

  Security

  As the world’s largest non-profit organization concerned with software security, OWASP:

  2026

  26

  Cycles

  10

  Projects

  128

  Trend

  PythonJavaScriptJavaHTML+10

Contributor counts are accepted projects per cycle.