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    159 repositories

    • jemalloc

      Public
      Meta fork of the OG Jemalloc project
      C
      •
      Other
      •1.6k•213•0•4•Updated Dec 24, 2025Dec 24, 2025

    • sapling

      Public
      A Scalable, User-Friendly Source Control System.
      Rust
      •
      GNU General Public License v2.0
      •329•6.7k•227•54•Updated Dec 24, 2025Dec 24, 2025

    • pyrefly

      Public
      A fast type checker and language server for Python
      pythonrusttypecheckertypeslanguage-serveridetypingcode-qualityhacktoberfesttypecheck
      Rust
      •
      MIT License
      •231•5.1k•392•42•Updated Dec 24, 2025Dec 24, 2025

    • facebook-for-woocommerce

      Public
      The official plugin from Meta. This repository is now officially maintained by Meta's engineering team. We welcome and encourage contributions from the community.
      PHP
      •
      GNU General Public License v2.0
      •179•243•73•124•Updated Dec 24, 2025Dec 24, 2025

    • fboss

      Public
      Facebook Open Switching System Software for controlling network switches.
      C++
      •
      Other
      •366•938•25•82•Updated Dec 24, 2025Dec 24, 2025

    • react-native

      Public
      A framework for building native applications using React
      reactandroidiosmobilereact-nativecross-platformapp-frameworkmobile-development
      C++
      •
      MIT License
      •25k•125k•714•403•Updated Dec 24, 2025Dec 24, 2025

    • Ax

      Public
      Adaptive Experimentation Platform
      Python
      •
      MIT License
      •357•2.7k•32•107•Updated Dec 24, 2025Dec 24, 2025

    • stylex

      Public
      StyleX is the styling system for ambitious user interfaces.
      JavaScript
      •
      MIT License
      •366•9k•85•22•Updated Dec 24, 2025Dec 24, 2025

    • openzl

      Public
      A novel data compression framework
      C
      •
      Other
      •122•2.9k•33•25•Updated Dec 24, 2025Dec 24, 2025

    • fbthrift

      Public
      Facebook's branch of Apache Thrift, including a new C++ server.
      C++
      •
      Apache License 2.0
      •626•2.7k•44•5•Updated Dec 24, 2025Dec 24, 2025

    • hhvm

      Public
      A virtual machine for executing programs written in Hack.
      phphackhhvmhacklang
      C++
      •
      Other
      •3.1k•19k•407•119•Updated Dec 24, 2025Dec 24, 2025

    • folly

      Public
      An open-source C++ library developed and used at Facebook.
      C++
      •
      Apache License 2.0
      •5.8k•30k•306•118•Updated Dec 24, 2025Dec 24, 2025

    • react-native-website

      Public
      The React Native website and docs
      reactreact-nativedocusaurus
      TypeScript
      •
      MIT License
      •5.6k•2.1k•14•97•Updated Dec 23, 2025Dec 23, 2025

    • buck2

      Public
      Build system, successor to Buck
      Rust
      •
      Apache License 2.0
      •312•4.2k•273•42•Updated Dec 23, 2025Dec 23, 2025

    • buck2-prelude

      Public
      Prelude for the Buck2 project
      Starlark
      •
      Apache License 2.0
      •53•58•1•1•Updated Dec 23, 2025Dec 23, 2025

    • openbmc

      Public
      OpenBMC is an open software framework to build a complete Linux image for a Board Management Controller (BMC).
      C
      •
      Apache License 2.0
      •300•667•43•7•Updated Dec 23, 2025Dec 23, 2025

    • rocksdb

      Public
      A library that provides an embeddable, persistent key-value store for fast storage.
      databasestorage-engine
      C++
      •
      GNU General Public License v2.0
      •6.7k•31k•822•537•Updated Dec 23, 2025Dec 23, 2025

    • lexical

      Public
      Lexical is an extensible text editor framework that provides excellent reliability, accessibility and performance.
      TypeScript
      •
      MIT License
      •2.1k•23k•536•36•Updated Dec 23, 2025Dec 23, 2025

    • dotslash

      Public
      Simplified executable deployment
      Rust
      •
      Apache License 2.0
      •47•788•15•5•Updated Dec 23, 2025Dec 23, 2025

    • fresco

      Public
      An Android library for managing images and the memory they use.
      Java
      •
      MIT License
      •3.8k•17k•244•13•Updated Dec 23, 2025Dec 23, 2025

    • wangle

      Public
      Wangle is a framework providing a set of common client/server abstractions for building services in a consistent, modular, and composable way.
      C++
      •
      Apache License 2.0
      •547•3.1k•34•12•Updated Dec 23, 2025Dec 23, 2025

    • mvfst

      Public
      An implementation of the QUIC transport protocol.
      C++
      •
      MIT License
      •273•1.6k•37•5•Updated Dec 23, 2025Dec 23, 2025

    • CacheLib

      Public
      Pluggable in-process caching engine to build and scale high performance services
      performancecppcacheconcurrencyssdcache-engine
      C++
      •
      Apache License 2.0
      •308•1.5k•15•23•Updated Dec 23, 2025Dec 23, 2025

    • proxygen

      Public
      A collection of C++ HTTP libraries including an easy to use HTTP server.
      C++
      •
      Other
      •1.5k•8.3k•22•14•Updated Dec 23, 2025Dec 23, 2025

    • fb303

      Public
      fb303 is a core set of thrift functions that provide a common mechanism for querying stats and other information from a service.
      C++
      •
      Apache License 2.0
      •59•86•6•12•Updated Dec 23, 2025Dec 23, 2025

    • watchman

      Public
      Watches files and records, or triggers actions, when they change.
      C++
      •
      MIT License
      •1k•13k•210•22•Updated Dec 23, 2025Dec 23, 2025

    • openr

      Public
      Distributed platform for building autonomic network functions.
      C++
      •
      MIT License
      •243•925•10•10•Updated Dec 23, 2025Dec 23, 2025

    • docusaurus

      Public
      Easy to maintain open source documentation websites.
      reactjavascriptopen-sourcewebsitedocumentationhacktoberfest
      TypeScript
      •
      MIT License
      •9.6k•63k•294•52•Updated Dec 23, 2025Dec 23, 2025

    • metro

      Public
      🚇 The JavaScript bundler for React Native
      javascriptbundlerreact-native
      JavaScript
      •
      MIT License
      •674•5.5k•357•62•Updated Dec 23, 2025Dec 23, 2025

    • infer

      Public
      A static analyzer for Java, C, C++, and Objective-C
      cjavaobjective-ccppstatic-code-analysisstatic-analysiscode-quality
      OCaml
      •
      MIT License
      •2.1k•15k•390•6•Updated Dec 23, 2025Dec 23, 2025