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. 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 13,338 MIT 1,151 235 (1 issue needs help) 200 Updated Sep 24, 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++ 40 Apache-2.0 5 0 3 Updated Sep 24, 2026
  • OpenBIC Public

    BICs (Bridge IC) are standalone devices deployed within a Data Center that enable monitoring a multi-host system using a single BMC device.

    facebook/OpenBIC's past year of commit activity
    C 70 Apache-2.0 66 5 5 Updated Sep 24, 2026
  • pyrefly Public

    A fast type checker and language server for Python

    facebook/pyrefly's past year of commit activity
    Rust 7,002 MIT 520 547 (38 issues need help) 150 Updated Sep 24, 2026
  • redex Public

    A bytecode optimizer for Android apps

    facebook/redex's past year of commit activity
    C++ 6,301 MIT 682 56 (2 issues need help) 18 Updated Sep 24, 2026
  • stylex Public

    StyleX is the styling system for ambitious user interfaces.

    facebook/stylex's past year of commit activity
    JavaScript 10,354 MIT 486 115 (11 issues need help) 84 Updated Sep 24, 2026
  • buck2 Public

    Build system, successor to Buck

    facebook/buck2's past year of commit activity
    Rust 4,438 Apache-2.0 397 297 105 Updated Sep 24, 2026
  • folly Public

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

    facebook/folly's past year of commit activity
    C++ 30,544 Apache-2.0 5,882 329 150 Updated Sep 24, 2026
  • fboss Public

    Facebook Open Switching System Software for controlling network switches.

    facebook/fboss's past year of commit activity
    C++ 991 409 26 149 Updated Sep 24, 2026
  • buck2-prelude Public

    Prelude for the Buck2 project

    facebook/buck2-prelude's past year of commit activity
    Starlark 73 Apache-2.0 69 1 1 Updated Sep 24, 2026