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  1. docusaurus docusaurus Public

    Easy to maintain open source documentation websites.

    TypeScript 66.5k 10.1k

  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 28k 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 181 repositories
  • sapling Public

    A Scalable, User-Friendly Source Control System.

    facebook/sapling's past year of commit activity
    Rust 7,032 GPL-2.0 407 243 (4 issues need help) 136 Updated Oct 13, 2026
  • folly Public

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

    facebook/folly's past year of commit activity
    C++ 30,549 Apache-2.0 5,880 331 152 Updated Oct 13, 2026
  • buck2 Public

    Build system, successor to Buck

    facebook/buck2's past year of commit activity
    Rust 4,465 Apache-2.0 407 300 119 Updated Oct 12, 2026
  • pyrefly Public

    A fast type checker and language server for Python

    facebook/pyrefly's past year of commit activity
    Rust 7,082 MIT 548 569 (38 issues need help) 157 Updated Oct 12, 2026
  • astryx Public

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

    facebook/astryx's past year of commit activity
    TypeScript 13,617 MIT 1,173 262 (1 issue needs help) 267 Updated Oct 12, 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 Oct 12, 2026
  • rocksdb Public

    A library that provides an embeddable, persistent key-value store for fast storage.

    facebook/rocksdb's past year of commit activity
    C++ 32,192 GPL-2.0 6,956 953 774 Updated Oct 12, 2026
  • meta-ray-ban-display-ui-toolkit-web Public

    UI Toolkit brings the Meta Ray-Ban Display design system to React. Use its components, semantic tokens, materials, motion, accessibility behavior, and directional focus navigation to build interfaces that stay consistent across applications.

    facebook/meta-ray-ban-display-ui-toolkit-web's past year of commit activity
    TypeScript 19 Apache-2.0 0 1 1 Updated Oct 12, 2026
  • relay Public

    Relay is a JavaScript framework for building data-driven React applications.

    facebook/relay's past year of commit activity
    Rust 18,959 MIT 1,893 639 (11 issues need help) 227 Updated Oct 12, 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 147 MIT 29 0 7 Updated Oct 12, 2026
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