Repositories list

• 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

  •663•143•0•0•Updated Feb 4, 2026Feb 4, 2026

• 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•738•453•Updated Feb 4, 2026Feb 4, 2026

• idb

  Public

  facebook/idb’s past year of commit activity
  idb is a flexible command line interface for automating iOS simulators and devices

  Objective-C

  •

  MIT License

  •471•4.9k•167•28•Updated Feb 4, 2026Feb 4, 2026

• 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•16k•395•8•Updated Feb 4, 2026Feb 4, 2026

• ktfmt

  Public

  facebook/ktfmt’s past year of commit activity
  A program that reformats Kotlin source code to comply with the common community standard for Kotlin code conventions.

  Kotlin

  •

  Apache License 2.0

  •98•1.2k•48•4•Updated Feb 4, 2026Feb 4, 2026

• react

  Public

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

  reactjavascriptlibrary+ 3uifrontenddeclarative

  JavaScript

  •

  MIT License

  •51k•243k•819•295•Updated Feb 4, 2026Feb 4, 2026

• hermes

  Public

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

  JavaScript

  •

  MIT License

  •732•11k•119•55•Updated Feb 4, 2026Feb 4, 2026

• pyre-check

  Public

  facebook/pyre-check’s past year of commit activity
  Performant type-checking for python.

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

  OCaml

  •

  MIT License

  •451•7.1k•131•21•Updated Feb 4, 2026Feb 4, 2026

• 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

  •264•5.3k•372•61•Updated Feb 4, 2026Feb 4, 2026

• 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•115•Updated Feb 4, 2026Feb 4, 2026

• 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•44•6•Updated Feb 4, 2026Feb 4, 2026

• buck2

  Public

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

  Rust

  •

  Apache License 2.0

  •324•4.2k•274•68•Updated Feb 4, 2026Feb 4, 2026

• facebook-for-woocommerce

  Public

  facebook/facebook-for-woocommerce’s past year of commit activity
  The official plugin from Meta. This repository is now officially maintained by Meta's engineering team. We welcome and encourage contributions from the communit…

  PHP

  •

  GNU General Public License v2.0

  •180•249•82•137•Updated Feb 4, 2026Feb 4, 2026

• relay

  Public

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

  Rust

  •

  MIT License

  •1.9k•19k•621•184•Updated Feb 4, 2026Feb 4, 2026

• sapling

  Public

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

  Rust

  •

  GNU General Public License v2.0

  •337•6.7k•231•62•Updated Feb 4, 2026Feb 4, 2026

• 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 synchron…

  Rust

  •

  MIT License

  •24•140•0•5•Updated Feb 4, 2026Feb 4, 2026

• dotslash

  Public

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

  Rust

  •

  Apache License 2.0

  •48•806•15•4•Updated Feb 4, 2026Feb 4, 2026

• mvfst

  Public

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

  C++

  •

  MIT License

  •278•1.6k•39•6•Updated Feb 4, 2026Feb 4, 2026

• 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•317•135•Updated Feb 4, 2026Feb 4, 2026

• Ax

  Public

  facebook/Ax’s past year of commit activity
  Adaptive Experimentation Platform

  Python

  •

  MIT License

  •358•2.7k•37•131•Updated Feb 4, 2026Feb 4, 2026

• buck2-prelude

  Public

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

  Starlark

  •

  Apache License 2.0

  •60•60•1•1•Updated Feb 4, 2026Feb 4, 2026

• 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•604•14•Updated Feb 4, 2026Feb 4, 2026

• immersive-web-sdk

  Public

  facebook/immersive-web-sdk’s past year of commit activity
  WebXR made simple. Full-featured framework with interactions, locomotion, and spatial UI. Powered by Three.js.

  TypeScript

  •

  MIT License

  •50•377•15•3•Updated Feb 4, 2026Feb 4, 2026

• openr

  Public

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

  C++

  •

  MIT License

  •246•927•10•10•Updated Feb 4, 2026Feb 4, 2026

• fboss

  Public
  Facebook Open Switching System Software for controlling network switches.

  C++

  •

  Other

  •377•950•25•130•Updated Feb 4, 2026Feb 4, 2026

• lexical

  Public

  facebook/lexical’s past year of commit activity
  Lexical is an extensible text editor framework that provides excellent reliability, accessibility and performance.

  TypeScript

  •

  MIT License

  •2.1k•23k•546•43•Updated Feb 4, 2026Feb 4, 2026

• starlark-rust

  Public

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

  Rust

  •

  Apache License 2.0

  •86•923•30•22•Updated Feb 4, 2026Feb 4, 2026

• redex

  Public

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

  C++

  •

  MIT License

  •681•6.3k•56•16•Updated Feb 4, 2026Feb 4, 2026

• 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

  •300•670•43•7•Updated Feb 4, 2026Feb 4, 2026

• watchman

  Public

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

  C++

  •

  MIT License

  •1.1k•13k•210•29•Updated Feb 4, 2026Feb 4, 2026