Repositories list

• sapling

  Public

  facebook/sapling’s past year of commit activity
  A Scalable, User-Friendly Source Control System.

  Rust

  •

  GNU General Public License v2.0

  •326•6.6k•226•53•Updated Nov 29, 2025Nov 29, 2025

• hhvm

  Public

  facebook/hhvm’s past year of commit activity
  A virtual machine for executing programs written in Hack.

  phphackhhvm+ 1hacklang

  C++

  •

  Other

  •3.1k•19k•408•110•Updated Nov 29, 2025Nov 29, 2025

• folly

  Public

  facebook/folly’s past year of commit activity
  An open-source C++ library developed and used at Facebook.

  C++

  •

  Apache License 2.0

  •5.8k•30k•303•112•Updated Nov 29, 2025Nov 29, 2025

• stylex

  Public

  facebook/stylex’s past year of commit activity
  StyleX is the styling system for ambitious user interfaces.

  JavaScript

  •

  MIT License

  •360•8.9k•71•18•Updated Nov 29, 2025Nov 29, 2025

• flow

  Public

  facebook/flow’s past year of commit activity
  Adds static typing to JavaScript to improve developer productivity and code quality.

  OCaml

  •

  MIT License

  •1.9k•22k•610•16•Updated Nov 29, 2025Nov 29, 2025

• fboss

  Public

  facebook/fboss’s past year of commit activity
  Facebook Open Switching System Software for controlling network switches.

  C++

  •

  Other

  •362•933•25•67•Updated Nov 28, 2025Nov 28, 2025

• infer

  Public

  facebook/infer’s past year of commit activity
  A static analyzer for Java, C, C++, and Objective-C

  cjavaobjective-c+ 4cppstatic-code-analysisstatic-analysiscode-quality

  OCaml

  •

  MIT License

  •2.1k•15k•389•6•Updated Nov 28, 2025Nov 28, 2025

• fb303

  Public

  facebook/fb303’s past year of commit activity
  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

  •60•85•6•12•Updated Nov 28, 2025Nov 28, 2025

• buck2-prelude

  Public

  facebook/buck2-prelude’s past year of commit activity
  Prelude for the Buck2 project

  Starlark

  •

  Apache License 2.0

  •51•59•1•1•Updated Nov 28, 2025Nov 28, 2025

• buck2

  Public

  facebook/buck2’s past year of commit activity
  Build system, successor to Buck

  Rust

  •

  Apache License 2.0

  •306•4.2k•268•40•Updated Nov 28, 2025Nov 28, 2025

• react-native

  Public

  facebook/react-native’s past year of commit activity
  A framework for building native applications using React

  reactandroidios+ 5mobilereact-nativecross-platformapp-frameworkmobile-development

  C++

  •

  MIT License

  •25k•125k•704•416•Updated Nov 28, 2025Nov 28, 2025

• metro

  Public

  facebook/metro’s past year of commit activity
  🚇 The JavaScript bundler for React Native

  javascriptbundlerreact-native

  JavaScript

  •

  MIT License

  •672•5.5k•357•65•Updated Nov 28, 2025Nov 28, 2025

• watchman

  Public
  Watches files and records, or triggers actions, when they change.

  C++

  •

  MIT License

  •1k•13k•210•20•Updated Nov 28, 2025Nov 28, 2025

• fbthrift

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

  C++

  •

  Apache License 2.0

  •624•2.7k•44•5•Updated Nov 28, 2025Nov 28, 2025

• CacheLib

  Public

  facebook/CacheLib’s past year of commit activity
  Pluggable in-process caching engine to build and scale high performance services

  performancecppcache+ 3concurrencyssdcache-engine

  C++

  •

  Apache License 2.0

  •305•1.5k•15•19•Updated Nov 28, 2025Nov 28, 2025

• openr

  Public
  Distributed platform for building autonomic network functions.

  C++

  •

  MIT License

  •245•924•11•9•Updated Nov 28, 2025Nov 28, 2025

• proxygen

  Public
  A collection of C++ HTTP libraries including an easy to use HTTP server.

  C++

  •

  Other

  •1.5k•8.3k•22•11•Updated Nov 28, 2025Nov 28, 2025

• wangle

  Public

  facebook/wangle’s past year of commit activity
  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

  •548•3.1k•34•11•Updated Nov 28, 2025Nov 28, 2025

• mvfst

  Public

  facebook/mvfst’s past year of commit activity
  An implementation of the QUIC transport protocol.

  C++

  •

  MIT License

  •275•1.6k•37•6•Updated Nov 28, 2025Nov 28, 2025

• igl

  Public

  facebook/igl’s past year of commit activity
  Intermediate Graphics Library (IGL) is a cross-platform library that commands the GPU. It provides a single low-level cross-platform interface on top of various graphics APIs (e.g. OpenGL, Metal and Vulkan).

  C++

  •

  Other

  •198•3.2k•4•1•Updated Nov 28, 2025Nov 28, 2025

• dotslash

  Public

  facebook/dotslash’s past year of commit activity
  Simplified executable deployment

  Rust

  •

  Apache License 2.0

  •44•773•15•3•Updated Nov 28, 2025Nov 28, 2025

• pyrefly

  Public
  A fast type checker and language server for Python

  pythonrusttypechecker+ 12typeslanguage-serveridetypingcode-qualityhacktoberfesttypecheck+ 5

  Rust

  •

  MIT License

  •211•4.8k•390•28•Updated Nov 28, 2025Nov 28, 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

  •301•666•43•6•Updated Nov 28, 2025Nov 28, 2025

• fresco

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

  Java

  •

  MIT License

  •3.8k•17k•242•11•Updated Nov 28, 2025Nov 28, 2025

• hermes

  Public

  facebook/hermes’s past year of commit activity
  A JavaScript engine optimized for running React Native.

  C++

  •

  MIT License

  •718•11k•121•79•Updated Nov 28, 2025Nov 28, 2025

• starlark-rust

  Public
  A Rust implementation of the Starlark language

  Rust

  •

  Apache License 2.0

  •83•888•30•12•Updated Nov 27, 2025Nov 27, 2025

• docusaurus

  Public

  facebook/docusaurus’s past year of commit activity
  Easy to maintain open source documentation websites.

  reactjavascriptopen-source+ 3websitedocumentationhacktoberfest

  TypeScript

  •

  MIT License

  •9.6k•63k•293•54•Updated Nov 27, 2025Nov 27, 2025

• react-native-devtools-frontend

  Public
  The Chrome DevTools UI, customized for React Native

  TypeScript

  •

  Other

  •596•59•0•2•Updated Nov 27, 2025Nov 27, 2025

• react

  Public

  facebook/react’s past year of commit activity
  The library for web and native user interfaces.

  reactjavascriptlibrary+ 3uifrontenddeclarative

  JavaScript

  •

  MIT License

  •50k•241k•855•238•Updated Nov 27, 2025Nov 27, 2025

• mariana-trench

  Public

  facebook/mariana-trench’s past year of commit activity
  A security focused static analysis tool for Android and Java applications.

  C++

  •

  MIT License

  •156•1.2k•40•3•Updated Nov 27, 2025Nov 27, 2025