Repositories list

• sapling

  Public
  A Scalable, User-Friendly Source Control System.

  Rust

  •

  GNU General Public License v2.0

  •314•6.5k•215•36•Updated Aug 8, 2025Aug 8, 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

  •161•242•111•69•Updated Aug 8, 2025Aug 8, 2025

• react-native

  Public
  A framework for building native applications using React

  mobilecross-platformapp-framework+ 5mobile-developmentreactandroidiosreact-native

  C++

  •

  MIT License

  •25k•123k•646•447•Updated Aug 8, 2025Aug 8, 2025

• buck2

  Public
  Build system, successor to Buck

  Rust

  •

  Apache License 2.0

  •287•4k•246•24•Updated Aug 8, 2025Aug 8, 2025

• hhvm

  Public
  A virtual machine for executing programs written in Hack.

  hacklangphphack+ 1hhvm

  C++

  •

  Other

  •3k•18k•407•93•Updated Aug 8, 2025Aug 8, 2025

• fboss

  Public
  Facebook Open Switching System Software for controlling network switches.

  C++

  •

  Other

  •346•915•24•77•Updated Aug 8, 2025Aug 8, 2025

• 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.

  C

  •

  Apache License 2.0

  •54•53•5•4•Updated Aug 8, 2025Aug 8, 2025

• facebook-android-sdk

  Public
  Used to integrate Android apps with Facebook Platform.

  Kotlin

  •

  Other

  •3.7k•6.3k•140•6•Updated Aug 8, 2025Aug 8, 2025

• openbmc

  Public
  OpenBMC is an open software framework to build a complete Linux image for a Board Management Controller (BMC).

  C

  •296•658•42•6•Updated Aug 8, 2025Aug 8, 2025

• infer

  Public
  A static analyzer for Java, C, C++, and Objective-C

  cobjective-ccpp+ 4static-code-analysisstatic-analysiscode-qualityjava

  OCaml

  •

  MIT License

  •2k•15k•415•4•Updated Aug 8, 2025Aug 8, 2025

• squangle

  Public
  SQuangLe is a C++ API for accessing MySQL servers

  C++

  •

  Other

  •54•125•2•0•Updated Aug 8, 2025Aug 8, 2025

• folly

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

  C++

  •

  Apache License 2.0

  •5.7k•30k•293•102•Updated Aug 8, 2025Aug 8, 2025

• fbthrift

  Public
  Facebook's branch of Apache Thrift, including a new C++ server.

  C++

  •

  Apache License 2.0

  •624•2.6k•37•4•Updated Aug 8, 2025Aug 8, 2025

• memlab

  Public
  A framework for finding JavaScript memory leaks and analyzing heap snapshots

  nodejsperformancefacebook+ 10v8memorysnapshotdetectore2eheaphermes+ 3

  JavaScript

  •

  MIT License

  •133•4.6k•10•1•Updated Aug 8, 2025Aug 8, 2025

• redex

  Public
  A bytecode optimizer for Android apps

  C++

  •

  MIT License

  •673•6.2k•56•17•Updated Aug 8, 2025Aug 8, 2025

• lexical

  Public
  Lexical is an extensible text editor framework that provides excellent reliability, accessibility and performance.

  TypeScript

  •

  MIT License

  •2k•22k•499•34•Updated Aug 8, 2025Aug 8, 2025

• relay

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

  Rust

  •

  MIT License

  •1.9k•19k•596•149•Updated Aug 8, 2025Aug 8, 2025

• fresco

  Public
  An Android library for managing images and the memory they use.

  Java

  •

  MIT License

  •3.8k•17k•242•10•Updated Aug 8, 2025Aug 8, 2025

• buck2-prelude

  Public
  Prelude for the Buck2 project

  Starlark

  •

  Apache License 2.0

  •50•58•1•1•Updated Aug 8, 2025Aug 8, 2025

• pyrefly

  Public
  A fast type checker and IDE for Python

  pythonrusttypechecker+ 11typeslanguage-serveridetypingcode-qualitytypechecktype-checker+ 4

  Rust

  •

  MIT License

  •138•3.4k•259•11•Updated Aug 8, 2025Aug 8, 2025

• rocksdb

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

  storage-enginedatabase

  C++

  •

  GNU General Public License v2.0

  •6.6k•30k•763•481•Updated Aug 8, 2025Aug 8, 2025

• react-strict-dom

  Public
  React Strict DOM (RSD) standardizes the development of styled React components for web and native.

  JavaScript

  •

  MIT License

  •180•3.4k•43•10•Updated Aug 7, 2025Aug 7, 2025

• stylex

  Public
  StyleX is the styling system for ambitious user interfaces.

  JavaScript

  •

  MIT License

  •336•8.7k•56•6•Updated Aug 7, 2025Aug 7, 2025

• flow

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

  OCaml

  •

  MIT License

  •1.9k•22k•655•15•Updated Aug 7, 2025Aug 7, 2025

• Ax

  Public
  Adaptive Experimentation Platform

  Python

  •

  MIT License

  •342•2.5k•20•81•Updated Aug 7, 2025Aug 7, 2025

• IT-CPE

  Public
  Meta's Client Platform Engineering tools. Some of the tools we have written to help manage our fleet of client systems.

  Ruby

  •

  Apache License 2.0

  •117•569•7•12•Updated Aug 7, 2025Aug 7, 2025

• pyre-check

  Public
  Performant type-checking for python.

  pythonsecuritytypechecker+ 8static-analysisocamlcontrol-flow-analysiscode-qualityprogram-analysistaint-analysisabstract-interpretation+ 1

  OCaml

  •

  MIT License

  •453•7.1k•129•21•Updated Aug 7, 2025Aug 7, 2025

• mvfst

  Public
  An implementation of the QUIC transport protocol.

  C++

  •

  MIT License

  •266•1.6k•35•3•Updated Aug 7, 2025Aug 7, 2025

• fatal

  Public
  Fatal is a library for fast prototyping software in modern C++. It provides facilities to enhance the expressive power of C++. The library is heavily based on template meta-programming, while keeping the complexity under-the-hood.

  C++

  •

  Other

  •154•1k•0•0•Updated Aug 7, 2025Aug 7, 2025

• facebook360_dep

  Public
  Facebook360 Depth Estimation Pipeline - https://facebook.github.io/facebook360_dep

  HTML

  •

  Other

  •51•251•19•2•Updated Aug 7, 2025Aug 7, 2025