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.
Checkstyle is a development tool to help programmers write Java code that is easy to read and adheres to a coding standard. Our utility automates the process of checking Java code to spare humans of this boring (but important) task. This makes it ideal for projects that want to enforce a coding standard. Each and every check also forces our users who are not familiar with these standards to read them and makes them think about why these standards exist.
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.
FreeCAD is a general-purpose parametric 3D computer-aided design (CAD) modeler and a building information modeling (BIM) software application with finite element method (FEM) support. It is intended for mechanical engineering product design but also expands to a wider range of uses around engineering, such as architecture or electrical engineering. FreeCAD is free and open-source, under the LGPL-2.0-or-later license, and available for Linux, macOS, and Windows operating systems. Users can extend the functionality of the software using the Python programming language.
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.
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.
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.
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.
The Metasploit Framework is both a penetration testing system and a development platform for creating security tools and exploits. The framework is used by network security professionals to perform penetration tests, system administrators to verify patch installations, product vendors to perform regression testing, and security researchers world-wide. The framework is written in the Ruby programming language and includes components written in C, many flavors of Assembly, Python, Powershell, PHP, and other languages.
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.
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.
The Rizin project is a fork of the famous Radare2 project that started in 2006. Since then the codebase has been rewritten multiple times, modularized and extended to support many new features. The Rizin project aims to provide stability, focus on the most important features, and provide a user friendly interface. Along with Cutter - a Qt-based GUI and the RzGhidra decompiler it makes the effective tool for everyday reversing tasks.
2026
4
Cycles
6
Projects
14
Trend
CPythonC++Qt+1
Contributor counts are accepted projects per cycle.