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    147 repositories

    • sapling

      Public
      A Scalable, User-Friendly Source Control System.
      Rust
      •
      GNU General Public License v2.0
      •299•6.4k•236•30•Updated May 7, 2025May 7, 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
      •151•234•92•52•Updated May 7, 2025May 7, 2025

    • hhvm

      Public
      A virtual machine for executing programs written in Hack.
      hacklangphphackhhvm
      C++
      •
      Other
      •3k•18k•453•91•Updated May 7, 2025May 7, 2025

    • buck2-prelude

      Public
      Prelude for the Buck2 project
      Java
      •
      Apache License 2.0
      •43•57•1•1•Updated May 7, 2025May 7, 2025

    • buck2

      Public
      Build system, successor to Buck
      Rust
      •
      Apache License 2.0
      •261•3.8k•214•21•Updated May 7, 2025May 7, 2025

    • react

      Public
      The library for web and native user interfaces.
      libraryfrontenddeclarativereactjavascriptui
      JavaScript
      •
      MIT License
      •48k•235k•818•202•Updated May 7, 2025May 7, 2025

    • fbthrift

      Public
      Facebook's branch of Apache Thrift, including a new C++ server.
      C++
      •
      Apache License 2.0
      •613•2.6k•34•5•Updated May 7, 2025May 7, 2025

    • pyrefly

      Public
      A fast type checker and IDE for Python
      Rust
      •
      MIT License
      •20•577•56•2•Updated May 7, 2025May 7, 2025

    • folly

      Public
      An open-source C++ library developed and used at Facebook.
      C++
      •
      Apache License 2.0
      •5.7k•29k•280•96•Updated May 7, 2025May 7, 2025

    • react-native

      Public
      A framework for building native applications using React
      mobilecross-platformapp-frameworkmobile-developmentreactandroidiosreact-native
      C++
      •
      MIT License
      •25k•122k•621•334•Updated May 7, 2025May 7, 2025

    • stylex

      Public
      StyleX is the styling system for ambitious user interfaces.
      JavaScript
      •
      MIT License
      •325•8.7k•52•12•Updated May 7, 2025May 7, 2025

    • dns

      Public
      Collection of Meta's DNS Libraries
      Go
      •
      Apache License 2.0
      •27•275•4•1•Updated May 7, 2025May 7, 2025

    • Haxl

      Public
      A Haskell library that simplifies access to remote data, such as databases or web-based services.
      Haskell
      •
      BSD 3-Clause "New" or "Revised" License
      •311•4.3k•4•4•Updated May 7, 2025May 7, 2025

    • kuduraft

      Public
      A Raft Library in C++ based on the Raft implementation in Apache Kudu
      C++
      •
      Apache License 2.0
      •651•132•0•0•Updated May 7, 2025May 7, 2025

    • CacheLib

      Public
      Pluggable in-process caching engine to build and scale high performance services
      cppcacheconcurrencyssdcache-engineperformance
      C++
      •
      Apache License 2.0
      •278•1.3k•14•20•Updated May 7, 2025May 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
      •116•563•6•11•Updated May 7, 2025May 7, 2025

    • mvfst

      Public
      An implementation of the QUIC transport protocol.
      C++
      •
      MIT License
      •257•1.6k•31•4•Updated May 7, 2025May 7, 2025

    • watchman

      Public
      Watches files and records, or triggers actions, when they change.
      C++
      •
      MIT License
      •1k•13k•209•38•Updated May 7, 2025May 7, 2025

    • proxygen

      Public
      A collection of C++ HTTP libraries including an easy to use HTTP server.
      C++
      •
      Other
      •1.5k•8.2k•19•3•Updated May 7, 2025May 7, 2025

    • openr

      Public
      Distributed platform for building autonomic network functions.
      C++
      •
      MIT License
      •242•911•10•6•Updated May 7, 2025May 7, 2025

    • fboss

      Public
      Facebook Open Switching System Software for controlling network switches.
      C++
      •
      Other
      •325•893•21•66•Updated May 7, 2025May 7, 2025

    • wangle

      Public
      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
      •541•3.1k•34•10•Updated May 7, 2025May 7, 2025

    • fb303

      Public
      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
      •52•82•6•9•Updated May 7, 2025May 7, 2025

    • flow

      Public
      Adds static typing to JavaScript to improve developer productivity and code quality.
      OCaml
      •
      MIT License
      •1.9k•22k•666•15•Updated May 7, 2025May 7, 2025

    • relay

      Public
      Relay is a JavaScript framework for building data-driven React applications.
      Rust
      •
      MIT License
      •1.8k•19k•585•146•Updated May 7, 2025May 7, 2025

    • bpfilter

      Public
      BPF-based packet filtering framework
      C
      •
      GNU General Public License v2.0
      •34•193•24•2•Updated May 7, 2025May 7, 2025

    • litho

      Public
      A declarative framework for building efficient UIs on Android.
      Kotlin
      •
      Apache License 2.0
      •762•7.7k•56•44•Updated May 7, 2025May 7, 2025

    • dotslash

      Public
      Simplified executable deployment
      Rust
      •
      Apache License 2.0
      •25•687•14•5•Updated May 7, 2025May 7, 2025

    • Ax

      Public
      Adaptive Experimentation Platform
      Python
      •
      MIT License
      •324•2.5k•25•95•Updated May 7, 2025May 7, 2025

    • ThreatExchange

      Public
      Trust & Safety tools for working together to fight digital harms.
      hashingimagevideoperceptual-hashingimage-hashingvideo-hashingimage-similaritythreatexchangencmecvideo-similarity
      C++
      •
      Other
      •327•1.2k•42•6•Updated May 7, 2025May 7, 2025