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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 7,060 GPL-2.0 408 243 (4 issues need help) 136 Updated Oct 14, 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 5,370 MIT 509 173 (4 issues need help) 15 Updated Oct 14, 2026
  • folly Public

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

    facebook/folly's past year of commit activity
    C++ 30,554 Apache-2.0 5,880 331 152 Updated Oct 14, 2026
  • buck2 Public

    Build system, successor to Buck

    facebook/buck2's past year of commit activity
    Rust 4,473 Apache-2.0 408 303 122 Updated Oct 14, 2026
  • flow Public

    Adds static typing to JavaScript to improve developer productivity and code quality.

    facebook/flow's past year of commit activity
    Rust 22,298 MIT 1,893 507 (1 issue needs help) 6 Updated Oct 14, 2026
  • astryx Public

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

    facebook/astryx's past year of commit activity
    TypeScript 13,639 MIT 1,174 262 (1 issue needs help) 263 Updated Oct 14, 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 14, 2026
  • fbthrift Public

    Meta's Thrift implementation: cross-language serialization and high-performance async RPC

    facebook/fbthrift's past year of commit activity
    C++ 2,698 Apache-2.0 646 45 5 Updated Oct 14, 2026
  • pyrefly Public

    A fast type checker and language server for Python

    facebook/pyrefly's past year of commit activity
    Rust 7,091 MIT 553 560 (36 issues need help) 151 Updated Oct 14, 2026
  • pyrefly-pre-commit Public

    A pre-commit hook for Pyrefly.

    facebook/pyrefly-pre-commit's past year of commit activity
    Python 38 MIT 5 0 0 Updated Oct 14, 2026
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