Skip to content
@facebook

Meta

We are working to build community through open source technology. NB: members must have two-factor auth.

Pinned Loading

  1. react react Public

    The library for web and native user interfaces.

    JavaScript 242k 50.4k

  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 63.4k 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 26.4k 2.4k

  6. lexical lexical Public

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

    TypeScript 22.8k 2.1k

Repositories

Showing 10 of 160 repositories
  • buck2 Public

    Build system, successor to Buck

    facebook/buck2’s past year of commit activity
    Rust 4,223 Apache-2.0 322 274 53 Updated Jan 17, 2026
  • buck2-shims-meta Public

    Shims to convert Meta internal buck2 macros/targets for open source build compatibility.

    facebook/buck2-shims-meta’s past year of commit activity
    Starlark 4 Apache-2.0 7 0 1 Updated Jan 17, 2026
  • ocamlrep Public

    Sets of libraries and tools to write applications and libraries mixing OCaml and Rust. These libraries will help keeping your types and data structures synchronized, and enable seamless exchange between OCaml and Rust

    facebook/ocamlrep’s past year of commit activity
    Rust 140 MIT 24 0 5 Updated Jan 17, 2026
  • fresco Public

    An Android library for managing images and the memory they use.

    facebook/fresco’s past year of commit activity
    Java 17,149 MIT 3,755 244 (39 issues need help) 13 Updated Jan 17, 2026
  • pyrefly Public

    A fast type checker and language server for Python

    facebook/pyrefly’s past year of commit activity
    Rust 5,214 MIT 253 364 (25 issues need help) 48 Updated Jan 17, 2026
  • hhvm Public

    A virtual machine for executing programs written in Hack.

    facebook/hhvm’s past year of commit activity
    C++ 18,590 3,074 407 112 Updated Jan 17, 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-2.0 626 44 5 Updated Jan 17, 2026
  • mvfst Public

    An implementation of the QUIC transport protocol.

    facebook/mvfst’s past year of commit activity
    C++ 1,631 MIT 278 39 6 Updated Jan 17, 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++ 8,312 1,526 22 14 Updated Jan 17, 2026
  • CacheLib Public

    Pluggable in-process caching engine to build and scale high performance services

    facebook/CacheLib’s past year of commit activity
    C++ 1,489 Apache-2.0 314 15 24 Updated Jan 17, 2026