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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
  • astryx Public

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

    facebook/astryx's past year of commit activity
    TypeScript 13,110 MIT 1,132 215 (2 issues need help) 199 Updated Sep 16, 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 5,880 326 152 Updated Sep 16, 2026
  • idb Public

    idb is a flexible command line interface for automating iOS simulators and devices

    facebook/idb's past year of commit activity
    Swift 5,332 MIT 503 170 (4 issues need help) 9 Updated Sep 16, 2026
  • pyrefly Public

    A fast type checker and language server for Python

    facebook/pyrefly's past year of commit activity
    Rust 6,969 MIT 518 547 (39 issues need help) 168 Updated Sep 16, 2026
  • fboss Public

    Facebook Open Switching System Software for controlling network switches.

    facebook/fboss's past year of commit activity
    C++ 989 409 25 181 Updated Sep 16, 2026
  • hhvm Public

    A virtual machine for executing programs written in Hack.

    facebook/hhvm's past year of commit activity
    C++ 18,661 3,070 410 135 Updated Sep 16, 2026
  • watchman Public

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

    facebook/watchman's past year of commit activity
    C++ 13,701 MIT 1,066 222 36 Updated Sep 16, 2026
  • sapling Public

    A Scalable, User-Friendly Source Control System.

    facebook/sapling's past year of commit activity
    Rust 7,010 GPL-2.0 398 240 (4 issues need help) 135 Updated Sep 16, 2026
  • rebalancer Public

    Rebalancer is a domain-specific language and tool for specifying and solving assignment problems (eg, putting balls in boxes with complex rules).

    facebook/rebalancer's past year of commit activity
    C++ 22 Apache-2.0 5 0 3 Updated Sep 16, 2026
  • openr Public

    Distributed platform for building autonomic network functions.

    facebook/openr's past year of commit activity
    C++ 938 MIT 254 11 10 Updated Sep 16, 2026
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