DIRECTORY
Filter by stack, capacity and track record. Every number comes from Google's public archive.
We are an Australian not-for-profit charity, founded in 2016, that serves as an umbrella organization for open-source projects. We believe the open-source philosophy is a resource-efficient approach to transfer knowledge, educate and innovate.
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.
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.
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.
Computational thinking for all with free visual coding apps The Catrobat project develops useful frameworks to create games, animations, or apps easily within a short time. This set of mobile creativity tools for smartphones is inspired by the well-known Scratch framework by the Lifelong Kindergarten Group at the MIT Media Lab. The motivation behind the project is that programming is an important cultural technique on the same level as mathematics and physics, from a practical as well as from a philosophical point of view. Our aim thus is to popularize the skills needed to program from an early age in a fun and engaging way that will facilitate the spread of its adoption among young people all over the world.
Community of technologists, designers, writers and advocates who work to ensure freedom for all people through our software.
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.
The LLVM Project is a collection of modular and reusable compiler and toolchain technologies. Despite its name, LLVM has little to do with traditional virtual machines. The name "LLVM" itself is not an acronym; it is the full name of the project.
Machine Learning for Science (ML4SCI) is an umbrella organization for machine learning-related projects in science. ML4SCI brings together researchers from universities and scientific laboratories with motivated students to join existing scientific collaborations and contribute to cutting edge science projects across a wide variety of disciplines. Students work on existing problems to develop new machine learning-based approaches and produce open source code that directly contributes to solving these scientific challenges.
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.
OpenVINO is an open‑source toolkit designed to optimize and deploy deep learning models from cloud to edge. It accelerates inference for a wide range of use cases—including computer vision, generative AI, and agentic AI—supporting models from popular frameworks such as PyTorch, TensorFlow, ONNX, and more. With OpenVINO, you can convert and optimize models, then deploy them across diverse Intel hardware and environments, whether on-premises, at the edge, on AI PCs, or in the cloud.
As the world’s largest non-profit organization concerned with software security, OWASP:
Python is a programming language that lets you work more quickly and integrate your systems more effectively.
R provides a wide variety of statistical and graphical techniques, and is highly extensible. R is often the tool of choice for research in statistical methodology.
Open source team chat and communications platform
Sugar is an activity-focused, free/libre open-source software (FLOSS) learning platform for children. Collaboration, reflection, and discovery are integrated directly into the user interface. Through Sugar's clarity of design, children and teachers have the opportunity to use computers on their own terms. Students can reshape, reinvent, and reapply both software and content into powerful learning activities. Sugar's focus on sharing, constructive criticism, and exploration is grounded in the culture of free software and the ideals of learn-by-doing "Constructionism".
FreeBSD is an operating system renowned for its advanced networking capabilities, robust security features, and exceptional performance. It is used across a wide spectrum of computing environments, ranging from the most heavily trafficked websites to desktop computers and embedded devices. Our source code is the foundation for well-known products such as the Sony PlayStation, Junos (the operating system powering Juniper routers), and elements of Apple's macOS. Additionally, FreeBSD runs on servers at Netflix that stream terabits of video content every second.
The Julia Language is an open-source, high level, and dynamic language built to be easy to use like Python while having speed near C++. As an umbrella organization, we house projects related to core Julia (the language) as well as packages from the broader Julia ecosystem.
The Linux Foundation is a non-profit consortium dedicated to fostering the growth of Linux. Founded in 2007 as a merger of the former Free Standards Group (FSG) and the former Open Source Developer Lab (OSDL), the LF sponsors the work of Linux creator Linus Torvalds and is supported by leading Linux and open source companies and developers from around the world. The Linux Foundation promotes, protects and standardizes Linux by providing unified resources and services needed for open source to successfully compete with closed platforms. For more see our [About page](https://www.linuxfoundation.org/about/). All software produced by us is free software published under OSI-approved licenses. See project ideas page for the license used by each project.
We are a global 501(c)3 fintech non-profit leveraging the cloud, mobile & open source community to democratize financial services worldwide and digitally transform the world’s 3 billion poor and underbanked. Mifos has pioneered open source banking technology for the past fifteen years transforming the entire sector at each major stage of evolution from microfinance to financial inclusion to digital financial services and now embedded finance. Mifos guides the open source community, steers the roadmap, and stewards the vibrant ecosystem of organizations building solutions on its open platform. Our building blocks for banking, recognized as digital public goods, make core banking commoditized infrastructure, empowering any organization, anywhere to embed any financial service to any customer via any channel. These building blocks provide the common functionalities for creating customers, managing wallets, savings and loan accounts, orchestrating payments, and maintaining the financial ledger & reports. More than 65 million clients are reached by 500+ financial institutions across 70 countries using solutions powered by our APIs.
The UCSC Open Source Program Office (OSPO) and the UC OSPO Network supports open source work throughout the University of California system. Beginning in 2022, the UCSC OSPO took over the programmatic responsibilities of the UCSC Center for Research in Open Source Software (CROSS), including mentorship activities such as GSoC. The UCSC OSPO creates partnerships with stakeholders within and outside the UC system in order to help students learn from open source communities, support scientists in using open source to accelerate research efforts, and connect students and scientists with sponsors from industry, government, and foundations. The OSPO helps bridge the gap between academic research and successful open source projects by promoting innovative projects maintained by UC-affiliated scientists and researchers. We support the transfer of cutting-edge technology resulting from UC-originating research to industry via successful open source projects. Due to the multi-campus nature of our current efforts, the projects we support and promote cover a wide range of topics and technologies - including:
The VideoLAN project is led by and composed of a team of volunteers who believe in the power of open source to rock the multimedia world. We produce multimedia software notably the famous VLC media player as well as designated libraries and codecs.
Zulip is the only modern team chat app that is ideal for both live and asynchronous conversations. Zulip has a web app, a cross-platform mobile app for iOS and Android, cross-platform desktop and terminal apps, and over 100 native integrations. The entire Zulip codebase is 100% open source.
Contributor counts are accepted projects per cycle.
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