Repositories list

• 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•407•96•Updated Nov 2, 2025Nov 2, 2025

• fbthrift

  Public

  facebook/fbthrift’s past year of commit activity
  Facebook's branch of Apache Thrift, including a new C++ server.

  C++

  •

  Apache License 2.0

  •627•2.7k•42•4•Updated Nov 2, 2025Nov 2, 2025

• facebook-ios-sdk

  Public

  facebook/facebook-ios-sdk’s past year of commit activity
  Used to integrate the Facebook Platform with your iOS & tvOS apps.

  Swift

  •

  Other

  •3.7k•8k•261•5•Updated Nov 2, 2025Nov 2, 2025

• openbmc

  Public

  facebook/openbmc’s past year of commit activity
  OpenBMC is an open software framework to build a complete Linux image for a Board Management Controller (BMC).

  C

  •

  Apache License 2.0

  •302•666•43•6•Updated Nov 2, 2025Nov 2, 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•301•111•Updated Nov 2, 2025Nov 2, 2025

• redex

  Public
  A bytecode optimizer for Android apps

  C++

  •

  MIT License

  •675•6.2k•56•17•Updated Nov 2, 2025Nov 2, 2025

• fboss

  Public

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

  C++

  •

  Other

  •358•926•25•47•Updated Nov 2, 2025Nov 2, 2025

• flow

  Public

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

  OCaml

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  MIT License

  •1.9k•22k•618•15•Updated Nov 2, 2025Nov 2, 2025

• buck2

  Public

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

  Rust

  •

  Apache License 2.0

  •302•4.1k•262•38•Updated Nov 1, 2025Nov 1, 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•124k•688•407•Updated Nov 1, 2025Nov 1, 2025

• react-native-website

  Public

  facebook/react-native-website’s past year of commit activity
  The React Native website and docs

  reactreact-nativedocusaurus

  TypeScript

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  MIT License

  •5.5k•2.1k•18•94•Updated Nov 1, 2025Nov 1, 2025

• sapling

  Public

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

  Rust

  •

  GNU General Public License v2.0

  •322•6.6k•223•46•Updated Nov 1, 2025Nov 1, 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

  •304•1.5k•14•19•Updated Nov 1, 2025Nov 1, 2025

• openr

  Public

  facebook/openr’s past year of commit activity
  Distributed platform for building autonomic network functions.

  C++

  •

  MIT License

  •245•920•11•9•Updated Nov 1, 2025Nov 1, 2025

• watchman

  Public

  facebook/watchman’s past year of commit activity
  Watches files and records, or triggers actions, when they change.

  C++

  •

  MIT License

  •1k•13k•216•40•Updated Nov 1, 2025Nov 1, 2025

• proxygen

  Public

  facebook/proxygen’s past year of commit activity
  A collection of C++ HTTP libraries including an easy to use HTTP server.

  C++

  •

  Other

  •1.5k•8.3k•22•10•Updated Nov 1, 2025Nov 1, 2025

• mvfst

  Public

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

  C++

  •

  MIT License

  •276•1.6k•38•5•Updated Nov 1, 2025Nov 1, 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 1, 2025Nov 1, 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•12•Updated Nov 1, 2025Nov 1, 2025

• ocamlrep

  Public

  facebook/ocamlrep’s past year of commit activity
  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

  Rust

  •

  MIT License

  •24•136•0•4•Updated Nov 1, 2025Nov 1, 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•240k•823•226•Updated Nov 1, 2025Nov 1, 2025

• pyrefly

  Public

  facebook/pyrefly’s past year of commit activity
  A fast type checker and language server for Python

  pythonrusttypechecker+ 12typeslanguage-serveridetypingcode-qualityhacktoberfesttypecheck+ 5

  Rust

  •

  MIT License

  •171•4.1k•359•23•Updated Nov 1, 2025Nov 1, 2025

• usort

  Public

  facebook/usort’s past year of commit activity
  Safe, minimal import sorting for Python projects.

  Python

  •

  MIT License

  •21•203•13•10•Updated Nov 1, 2025Nov 1, 2025

• buck2-prelude

  Public

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

  Starlark

  •

  Apache License 2.0

  •53•59•1•1•Updated Nov 1, 2025Nov 1, 2025

• stylex

  Public

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

  JavaScript

  •

  MIT License

  •350•8.8k•73•18•Updated Nov 1, 2025Nov 1, 2025

• dotslash

  Public

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

  Rust

  •

  Apache License 2.0

  •40•766•15•3•Updated Oct 31, 2025Oct 31, 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++

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  MIT License

  •156•1.2k•38•3•Updated Oct 31, 2025Oct 31, 2025

• capi-param-builder

  Public

  facebook/capi-param-builder’s past year of commit activity
  Conversions API parameter builder to help enhance the parameter qualities for Conversions API events

  JavaScript

  •

  Other

  •3•2•0•0•Updated Oct 31, 2025Oct 31, 2025

• TextLayoutBuilder

  Public

  facebook/TextLayoutBuilder’s past year of commit activity
  An Android library that allows you to build text layouts more easily.

  Java

  •

  Apache License 2.0

  •133•1.5k•2•0•Updated Oct 31, 2025Oct 31, 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++

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  Other

  •198•3.1k•4•0•Updated Oct 31, 2025Oct 31, 2025