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  1. docusaurus docusaurus Public

    Easy to maintain open source documentation websites.

    TypeScript 66.3k 10k

  2. hhvm hhvm Public

    A virtual machine for executing programs written in Hack.

    C++ 18.7k 3.1k

  3. zstd zstd Public

    Zstandard - Fast real-time compression algorithm

    C 27.9k 2.6k

  4. lexical lexical Public

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

    TypeScript 23.9k 2.2k

Repositories

Showing 10 of 177 repositories
  • facebook-for-woocommerce Public

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

    facebook/facebook-for-woocommerce's past year of commit activity
    PHP 264 GPL-2.0 195 104 (2 issues need help) 140 Updated Sep 19, 2026
  • pyrefly Public

    A fast type checker and language server for Python

    facebook/pyrefly's past year of commit activity
    Rust 6,978 MIT 520 545 (39 issues need help) 166 Updated Sep 19, 2026
  • buck2 Public

    Build system, successor to Buck

    facebook/buck2's past year of commit activity
    Rust 4,427 Apache-2.0 397 299 101 Updated Sep 19, 2026
  • GoogleTagManager-WebTemplate-For-FacebookPixel Public

    Facebook Pixel - Custom Tag Template for Google Tag Manager.

    facebook/GoogleTagManager-WebTemplate-For-FacebookPixel's past year of commit activity
    Smarty 54 Apache-2.0 34 24 2 Updated Sep 19, 2026
  • capi-param-builder Public

    Conversions API parameter builder to help enhance the parameter qualities for Conversions API events

    facebook/capi-param-builder's past year of commit activity
    JavaScript 33 9 1 0 Updated Sep 19, 2026
  • sapling Public

    A Scalable, User-Friendly Source Control System.

    facebook/sapling's past year of commit activity
    Rust 7,014 GPL-2.0 400 240 (4 issues need help) 135 Updated Sep 18, 2026
  • fboss Public

    Facebook Open Switching System Software for controlling network switches.

    facebook/fboss's past year of commit activity
    C++ 989 409 26 145 Updated Sep 18, 2026
  • astryx Public

    An open source design system that's fully customizable and agent ready

    facebook/astryx's past year of commit activity
    TypeScript 13,221 MIT 1,139 220 (2 issues need help) 207 Updated Sep 18, 2026
  • hermes Public

    A JavaScript engine optimized for running React Native.

    facebook/hermes's past year of commit activity
    JavaScript 11,311 MIT 865 140 112 Updated Sep 18, 2026
  • folly Public

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

    facebook/folly's past year of commit activity
    C++ 30,541 Apache-2.0 5,882 328 151 Updated Sep 18, 2026
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