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 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 63.7k 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 26.6k 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
  • hhvm Public

    A virtual machine for executing programs written in Hack.

    facebook/hhvm’s past year of commit activity
    C++ 18,602 3,077 409 108 Updated Feb 9, 2026
  • stylex Public

    StyleX is the styling system for ambitious user interfaces.

    facebook/stylex’s past year of commit activity
    JavaScript 9,117 MIT 387 92 (12 issues need help) 23 Updated Feb 9, 2026
  • fboss Public

    Facebook Open Switching System Software for controlling network switches.

    facebook/fboss’s past year of commit activity
    C++ 951 378 25 128 Updated Feb 9, 2026
  • watchman Public

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

    facebook/watchman’s past year of commit activity
    C++ 13,495 MIT 1,050 210 29 Updated Feb 9, 2026
  • sapling Public

    A Scalable, User-Friendly Source Control System.

    facebook/sapling’s past year of commit activity
    Rust 6,723 GPL-2.0 340 234 (4 issues need help) 61 Updated Feb 9, 2026
  • lexical Public

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

    facebook/lexical’s past year of commit activity
    TypeScript 22,913 MIT 2,081 546 (16 issues need help) 43 Updated Feb 9, 2026
  • pyre-check Public

    Performant type-checking for python.

    facebook/pyre-check’s past year of commit activity
    OCaml 7,143 MIT 452 131 22 Updated Feb 9, 2026
  • pyrefly Public

    A fast type checker and language server for Python

    facebook/pyrefly’s past year of commit activity
    Rust 5,294 MIT 265 380 (33 issues need help) 70 Updated Feb 9, 2026
  • buck2 Public

    Build system, successor to Buck

    facebook/buck2’s past year of commit activity
    Rust 4,247 Apache-2.0 325 275 68 Updated Feb 8, 2026
  • facebook-for-woocommerce Public

    The official plugin from Meta. This repository is now officially maintained by Meta's engineering team. We welcome and encourage contributions from the community.

    facebook/facebook-for-woocommerce’s past year of commit activity
    PHP 249 GPL-2.0 179 82 (2 issues need help) 140 Updated Feb 9, 2026
View all repositories
Developer Program Member