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  1. react react Public

    The library for web and native user interfaces.

    JavaScript 243k 50.5k

  2. react-native react-native Public

    A framework for building native applications using React

    C++ 125k 25.1k

  3. docusaurus docusaurus Public

    Easy to maintain open source documentation websites.

    TypeScript 63.6k 9.7k

  4. hhvm hhvm Public

    A virtual machine for executing programs written in Hack.

    C++ 18.6k 3.1k

  5. zstd zstd Public

    Zstandard - Fast real-time compression algorithm

    C 26.5k 2.4k

  6. lexical lexical Public

    Lexical is an extensible text editor framework that provides excellent reliability, accessibility and performance.

    TypeScript 22.9k 2.1k

Repositories

Showing 10 of 161 repositories
  • buck2 Public

    Build system, successor to Buck

    facebook/buck2’s past year of commit activity
    Rust 4,242 Apache-2.0 324 274 66 Updated Feb 1, 2026
  • pyrefly Public

    A fast type checker and language server for Python

    facebook/pyrefly’s past year of commit activity
    Rust 5,267 MIT 262 376 (28 issues need help) 57 Updated Feb 1, 2026
  • fbthrift Public

    Facebook's branch of Apache Thrift, including a new C++ server.

    facebook/fbthrift’s past year of commit activity
    C++ 2,674 Apache-2.0 627 44 6 Updated Feb 1, 2026
  • openr Public

    Distributed platform for building autonomic network functions.

    facebook/openr’s past year of commit activity
    C++ 926 MIT 246 10 10 Updated Feb 2, 2026
  • mvfst Public

    An implementation of the QUIC transport protocol.

    facebook/mvfst’s past year of commit activity
    C++ 1,632 MIT 278 39 7 Updated Feb 2, 2026
  • sapling Public

    A Scalable, User-Friendly Source Control System.

    facebook/sapling’s past year of commit activity
    Rust 6,716 GPL-2.0 337 230 (4 issues need help) 62 Updated Feb 1, 2026
  • folly Public

    An open-source C++ library developed and used at Facebook.

    facebook/folly’s past year of commit activity
    C++ 30,243 Apache-2.0 5,843 310 132 Updated Feb 1, 2026
  • hhvm Public

    A virtual machine for executing programs written in Hack.

    facebook/hhvm’s past year of commit activity
    C++ 18,599 3,076 409 113 Updated Feb 1, 2026
  • proxygen Public

    A collection of C++ HTTP libraries including an easy to use HTTP server.

    facebook/proxygen’s past year of commit activity
    C++ 8,324 1,523 22 15 Updated Feb 1, 2026
  • watchman Public

    Watches files and records, or triggers actions, when they change.

    facebook/watchman’s past year of commit activity
    C++ 13,483 MIT 1,050 210 29 Updated Feb 1, 2026
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