Home | Meta Open Source Meta Embraces Open Source Meta is committed to the notion that open source not only provides great technology for developers, but also brings the best out in people. Meta believes in the following tenets: Collaboration Open source allows developers from around the world to proactively work together to achieve common goals. Community Open source provides opportunities for the creation of diverse communities in support of the betterment of everyone. Technology Open source has produced historic technologies, including operating systems, frameworks and programming languages. Featured Media Open-sourcing Pyrefly: A faster Python type checker written in Rust May 15, 2025 Meta Open Source: 2024 by the numbers Apr 2, 2025 Introducing Aria Gen 2 Feb 27, 2025 See all media Popular Projects DocumentationDocusaurus Setup a website for your documentation quickly and easily. View Project FrameworksReact A JavaScript framework for building awesome user interfaces. View Project FrameworksPyTorch A Python-based machine learning framework for dynamic neural networks. View Project See more projects ShowcaseGlobally trusted Open source is used by teams of all shapes and sizes to create, iterate, and grow. See Showcase