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•409•117•Updated Dec 6, 2025Dec 6, 2025

• mcrouter

  Public

  facebook/mcrouter’s past year of commit activity
  Mcrouter is a memcached protocol router for scaling memcached deployments.

  C++

  •

  MIT License

  •547•3.3k•97•20•Updated Dec 6, 2025Dec 6, 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

  •213•4.9k•394•28•Updated Dec 6, 2025Dec 6, 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•210•21•Updated Dec 6, 2025Dec 6, 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

  •325•6.6k•226•55•Updated Dec 6, 2025Dec 6, 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•305•112•Updated Dec 6, 2025Dec 6, 2025

• fboss

  Public

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

  C++

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  Other

  •361•935•25•75•Updated Dec 6, 2025Dec 6, 2025

• openr

  Public

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

  C++

  •

  MIT License

  •243•923•10•9•Updated Dec 6, 2025Dec 6, 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

  •546•3.1k•34•11•Updated Dec 6, 2025Dec 6, 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++

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  Other

  •1.5k•8.3k•22•11•Updated Dec 6, 2025Dec 6, 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

  •623•2.7k•44•5•Updated Dec 6, 2025Dec 6, 2025

• mvfst

  Public

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

  C++

  •

  MIT License

  •273•1.6k•37•6•Updated Dec 6, 2025Dec 6, 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

  •303•1.5k•15•19•Updated Dec 6, 2025Dec 6, 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

  •58•84•6•12•Updated Dec 6, 2025Dec 6, 2025

• kuduraft

  Public

  facebook/kuduraft’s past year of commit activity
  A Raft Library in C++ based on the Raft implementation in Apache Kudu

  C++

  •

  Apache License 2.0

  •657•141•0•0•Updated Dec 6, 2025Dec 6, 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•611•16•Updated Dec 6, 2025Dec 6, 2025

• stylex

  Public

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

  JavaScript

  •

  MIT License

  •363•9k•76•21•Updated Dec 6, 2025Dec 6, 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•857•245•Updated Dec 6, 2025Dec 6, 2025

• buck2

  Public

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

  Rust

  •

  Apache License 2.0

  •307•4.2k•270•35•Updated Dec 6, 2025Dec 6, 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•706•433•Updated Dec 6, 2025Dec 6, 2025

• pyrefly-pre-commit

  Public

  facebook/pyrefly-pre-commit’s past year of commit activity
  A pre-commit hook for Pyrefly.

  Python

  •

  MIT License

  •2•11•1•0•Updated Dec 6, 2025Dec 6, 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

  •197•3.1k•4•5•Updated Dec 6, 2025Dec 6, 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

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  MIT License

  •2.1k•15k•389•6•Updated Dec 6, 2025Dec 6, 2025

• relay

  Public

  facebook/relay’s past year of commit activity
  Relay is a JavaScript framework for building data-driven React applications.

  Rust

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  MIT License

  •1.9k•19k•613•166•Updated Dec 6, 2025Dec 6, 2025

• metro

  Public

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

  javascriptbundlerreact-native

  JavaScript

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  MIT License

  •671•5.5k•357•64•Updated Dec 6, 2025Dec 6, 2025

• hermes

  Public

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

  C++

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  MIT License

  •714•11k•121•78•Updated Dec 6, 2025Dec 6, 2025

• starlark-rust

  Public

  facebook/starlark-rust’s past year of commit activity
  A Rust implementation of the Starlark language

  Rust

  •

  Apache License 2.0

  •83•891•30•13•Updated Dec 6, 2025Dec 6, 2025

• redex

  Public

  facebook/redex’s past year of commit activity
  A bytecode optimizer for Android apps

  C++

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  MIT License

  •674•6.2k•56•16•Updated Dec 6, 2025Dec 6, 2025

• buck2-prelude

  Public

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

  Starlark

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  Apache License 2.0

  •50•57•1•1•Updated Dec 6, 2025Dec 6, 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

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  Apache License 2.0

  •300•666•43•6•Updated Dec 6, 2025Dec 6, 2025