522 organizations since 2016

• 

  Apache DataFusion

  Data

  Foundational library for DBs and compute engines

  2026

  –

  Cycles

  1

  Projects

  2

  Trend

  PythonRustSQLArrow
• 

  Apache Software Foundation

  WebNew in 2026

  The Foundation provides an established framework for intellectual property and financial contributions that simultaneously limits contributors potential legal exposure. Through a collaborative and meritocratic development process, Apache projects deliver enterprise-grade, freely available software products that attract large communities of users. The pragmatic Apache License makes it easy for all users, commercial and individual, to deploy Apache products.

  2026

  34

  Cycles

  1

  Projects

  34

  Trend

  CJavaC++
• 

  cBioPortal for Cancer Genomics

  Science and medicine

  The cBioPortal for Cancer Genomics is a resource designed to provide broad community access to cancer genomic data. It provides a unique user­-friendly and "biology­-centric computational user interface", with the goal of making genomic data more easily accessible to translational scientists, biologists, and clinicians. The interface was explicitly built and continues to evolve with careful usability studies involving multiple biological and clinical users, and an active and engaged user base.

  2026

  5

  Cycles

  8

  Projects

  43

  Trend

  JavaScriptJavaWebHTML+8
• 

  Center for Research in Open Source Software (CROSS)

  Science and medicine

  Amplifying Research Imapct through Open Source

  2026

  –

  Cycles

  4

  Projects

  20

  Trend

  PythonJavaScriptC++Hadoop+8
• 

  CERN-HSF

  Science and medicine

  CERN-HSF (High-Energy Physics Software Foundation) is the umbrella organization for high-energy physics-related projects in GSoC. The HEP Software Foundation (http://hepsoftwarefoundation.org/) facilitates the coordination of common international efforts in high-energy physics software and computing.

  2026

  26

  Cycles

  10

  Projects

  240

  Trend

  PythonCC++Machine learning+7
• 

  Cuneiform Digital Library Initiative (CDLI)

  Science and medicine

  The Cuneiform Digital Library Initiative (CDLI) is a global collaboration of Assyriologists, museum curators, and historians working together to make the world’s earliest written records accessible online. CDLI focuses on cuneiform inscriptions dating back to the very beginning of writing around 3350 BC. Today, more than 500,000 such artifacts are held in museums and private collections worldwide, and CDLI has already digitally catalogued over 350,000 of them, helping researchers and the public explore humanity’s oldest written heritage.

  2026

  4

  Cycles

  6

  Projects

  34

  Trend

  PythonMariaDBRDFPHP+9
• 

  CVAT

  Web

  Computer Vision Data Annotation Platform for AI

  2026

  –

  Cycles

  1

  Projects

  2

  Trend

  PythonDjangoReactKubernetes+1
• 

  Data for the Common Good

  Web

  Data for the Common Good is dedicated to building communities, platforms, and ecosystems that maximize the potential of data to drive discovery and improve human health. Headquartered in the Department of Pediatrics at the University of Chicago, our team of experts works with collaborators all over the world to connect and share useful, high-quality data between institutions, groups, and countries to increase opportunities for discovery.

  2026

  5

  Cycles

  3

  Projects

  13

  Trend

  PythonJavaScriptKubernetesReactjs+1
• 

  DBpedia

  Data

  DBpedia is a crowd-sourced community effort to extract structured information from Wikipedia and make this information available on the Web. It allows for a global and unified access to Knowledge Graphs.

  2026

  5

  Cycles

  11

  Projects

  66

  Trend

  PythonJavaScalaRDF+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
• 

  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
• 

  INCF

  Science and medicine

  The International Neuroinformatics Coordinating Facility (INCF; www.incf.org) is an international organization launched in 2005, following a proposal from the Global Science Forum of the OECD.

  2026

  23

  Cycles

  11

  Projects

  234

  Trend

  PythonJavaScriptJavaC+++6
• 

  Kart Project

  Data

  Distributed version-control for geospatial data

  2026

  –

  Cycles

  1

  Projects

  1

  Trend

  PythonC++GitGIS
• 

  Liquid Galaxy project

  Data

  Liquid Galaxy is a remarkable panoramic system that is tremendously compelling. It started off as a Google 20% project to run Google Earth across a small cluster of PC's and it has grown from there! Liquid Galaxy hardware consists of one or more computers driving multiple displays. Liquid Galaxy applications have been developed using a master/slave architecture. The view orientation of each slave display is configured in reference to the view of the master display. Navigation on the system is done from the master instance and the location on the master is broadcast to the slaves over UDP. The slave instances, knowing their own locations in reference to the master, then change their views accordingly. The Liquid Galaxy Project, while making use of Google Earth software, does not develop the Google Earth code-base itself. Google Earth is not open-source software, although it is free (as in beer). Instead, the Liquid Galaxy Project works on extending the Liquid Galaxy system with open-source software both improving its administration and enabling open-source applications, so that content of various types can be displayed in the immersive panoramic environment. Artificial Intelligence focus: 2026 is the year when AI is going to change the coding industry, and GSoC and the open-source projects on it, have to jump on. At the Liquid Galaxy community, we’ve been using AI for years to obtain data to be shown on Google Earth for our projects, using many models and technologies. This 2026, all the projects will have an Artificial Intelligence voice, and most of them will use of diferent AI models to handle queries and arrange data, starting from Google's Gemini and Gemma.

  2026

  11

  Cycles

  10

  Projects

  86

  Trend

  JavaScriptROSGISCesium+14
• 

  MalariaGEN

  Science and medicineNew in 2026

  MalariaGEN is a global network of global partners who share and integrate data relevant to inform malaria surveillance, our mission is to generate insights and tools that bridge the gaps for analysts in malaria endemic settings to use their data meaningfully to inform public health efforts. We build and optimise data resources and analytical tools to run directly in the cloud. Our flagship project is the Vector Observatory, which includes whole-genome sequence data for over 30,000 mosquitoes, integrating data from 70 partners across the globe from over 17 different mosquito species -- this is the largest resource on genetic variation data for any multicellular organism (other than humans!). Our goal is to enable analysts, scientists, students and public health practitioners to access these data without the need for any dedicated compute infrastructure, by optimising our resources to run within free compute environments (a big shout to Google Colab!) and by developing training resources that support partners to get confident with using cloud-native data and resources for their analysis.

  2026

  2

  Cycles

  1

  Projects

  2

  Trend

  PythonGcs
• 

  Mathesar

  Data

  Webapp providing a UX-first interface to databases

  2026

  –

  Cycles

  2

  Projects

  5

  Trend

  PythonPostgreSQLJavaScriptDjango+1
• 

  MetaBrainz Foundation Inc

  Data

  The MetaBrainz Foundation is a non-profit that believes in free, open access to data. It has been set up to build community maintained databases and make them available in the public domain or under Creative Commons licenses.

  2026

  7

  Cycles

  11

  Projects

  67

  Trend

  PythonPostgreSQLJavaScriptPerl+7
• 

  NumFOCUS

  Science and medicine

  NumFOCUS supports and promotes world-class, innovative, open source scientific software. Most individual projects, even the wildly successful ones, find the overhead of a non-profit to be too large for their community to bear. NumFOCUS provides a critical service as an umbrella organization for this projects.

  2026

  27

  Cycles

  11

  Projects

  304

  Trend

  PythonJavaScriptRJulia+2
• 

  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
• 

  Polypheny

  Data

  The Most Versatile Data Management Platform

  2026

  –

  Cycles

  3

  Projects

  9

  Trend

  JavaScriptJavaSQLAngular
• 

  PostgreSQL

  Data

  PostgreSQL is a powerful, open source object-relational database system with over 30 years of active development that has earned it a strong reputation for reliability, feature robustness, and performance.

  2026

  7

  Cycles

  10

  Projects

  58

  Trend

  CPostgreSQLPerlSQL+7
• 

  Postman

  Data

  The Future is API-First

  2026

  –

  Cycles

  4

  Projects

  19

  Trend

  JavaScriptNode.jsGraphQLOpenapi+4
• 

  Red Hen Lab

  Data

  Research on Multimodal Communication

  2026

  –

  Cycles

  9

  Projects

  88

  Trend

  Machine learningOpenCVHigh Performance ComputingAudio Procesing+14
• 

  Software Heritage

  Data

  The universal source code archive

  2026

  –

  Cycles

  3

  Projects

  6

  Trend

  PythonJavaScriptDjangoGit+3

Contributor counts are accepted projects per cycle.