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    150 repositories

    • buck2

      Public
      Build system, successor to Buck
      Rust
      •
      Apache License 2.0
      •286•4k•244•21•Updated Aug 2, 2025Aug 2, 2025

    • buck2-prelude

      Public
      Prelude for the Buck2 project
      Starlark
      •
      Apache License 2.0
      •49•58•1•1•Updated Aug 2, 2025Aug 2, 2025

    • redex

      Public
      A bytecode optimizer for Android apps
      C++
      •
      MIT License
      •673•6.2k•56•17•Updated Aug 2, 2025Aug 2, 2025

    • sapling

      Public
      A Scalable, User-Friendly Source Control System.
      Rust
      •
      GNU General Public License v2.0
      •315•6.5k•214•35•Updated Aug 2, 2025Aug 2, 2025

    • relay

      Public
      Relay is a JavaScript framework for building data-driven React applications.
      Rust
      •
      MIT License
      •1.9k•19k•595•149•Updated Aug 2, 2025Aug 2, 2025

    • memlab

      Public
      A framework for finding JavaScript memory leaks and analyzing heap snapshots
      nodejsperformancefacebookv8memorysnapshotdetectore2eheaphermes
      JavaScript
      •
      MIT License
      •133•4.6k•10•1•Updated Aug 2, 2025Aug 2, 2025

    • fboss

      Public
      Facebook Open Switching System Software for controlling network switches.
      C++
      •
      Other
      •342•915•24•77•Updated Aug 2, 2025Aug 2, 2025

    • hhvm

      Public
      A virtual machine for executing programs written in Hack.
      hacklangphphackhhvm
      C++
      •
      Other
      •3k•18k•407•92•Updated Aug 2, 2025Aug 2, 2025

    • fbthrift

      Public
      Facebook's branch of Apache Thrift, including a new C++ server.
      C++
      •
      Apache License 2.0
      •624•2.6k•36•6•Updated Aug 2, 2025Aug 2, 2025

    • react-native

      Public
      A framework for building native applications using React
      mobilecross-platformapp-frameworkmobile-developmentreactandroidiosreact-native
      C++
      •
      MIT License
      •25k•123k•650•438•Updated Aug 1, 2025Aug 1, 2025

    • hermes

      Public
      A JavaScript engine optimized for running React Native.
      C++
      •
      MIT License
      •697•10k•119•70•Updated Aug 1, 2025Aug 1, 2025

    • metro

      Public
      🚇 The JavaScript bundler for React Native
      javascriptbundlerreact-native
      JavaScript
      •
      MIT License
      •664•5.4k•340•54•Updated Aug 1, 2025Aug 1, 2025

    • proxygen

      Public
      A collection of C++ HTTP libraries including an easy to use HTTP server.
      C++
      •
      Other
      •1.5k•8.3k•20•4•Updated Aug 1, 2025Aug 1, 2025

    • mariana-trench

      Public
      A security focused static analysis tool for Android and Java applications.
      C++
      •
      MIT License
      •150•1.2k•50•3•Updated Aug 1, 2025Aug 1, 2025

    • stylex

      Public
      StyleX is the styling system for ambitious user interfaces.
      JavaScript
      •
      MIT License
      •336•8.7k•57•6•Updated Aug 1, 2025Aug 1, 2025

    • igl

      Public
      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
      •185•3.1k•5•0•Updated Aug 1, 2025Aug 1, 2025

    • OpenBIC

      Public
      BICs (Bridge IC) are standalone devices deployed within a Data Center that enable monitoring a multi-host system using a single BMC device.
      C
      •
      Apache License 2.0
      •54•52•5•1•Updated Aug 1, 2025Aug 1, 2025

    • mcrouter

      Public
      Mcrouter is a memcached protocol router for scaling memcached deployments.
      C++
      •
      MIT License
      •549•3.3k•97•21•Updated Aug 1, 2025Aug 1, 2025

    • mvfst

      Public
      An implementation of the QUIC transport protocol.
      C++
      •
      MIT License
      •266•1.6k•35•3•Updated Aug 1, 2025Aug 1, 2025

    • pyrefly

      Public
      A fast type checker and IDE for Python
      pythonrusttypecheckertypeslanguage-serveridetypingcode-qualitytypechecktype-checker
      Rust
      •
      MIT License
      •133•3.4k•250•11•Updated Aug 1, 2025Aug 1, 2025

    • time

      Public
      Meta's Time libraries
      Go
      •
      Apache License 2.0
      •77•622•5•1•Updated Aug 1, 2025Aug 1, 2025

    • react

      Public
      The library for web and native user interfaces.
      reactjavascriptlibraryuifrontenddeclarative
      JavaScript
      •
      MIT License
      •49k•238k•807•205•Updated Aug 1, 2025Aug 1, 2025

    • fresco

      Public
      An Android library for managing images and the memory they use.
      Java
      •
      MIT License
      •3.8k•17k•242•10•Updated Aug 1, 2025Aug 1, 2025

    • lexical

      Public
      Lexical is an extensible text editor framework that provides excellent reliability, accessibility and performance.
      TypeScript
      •
      MIT License
      •2k•22k•498•36•Updated Aug 1, 2025Aug 1, 2025

    • folly

      Public
      An open-source C++ library developed and used at Facebook.
      C++
      •
      Apache License 2.0
      •5.7k•30k•294•101•Updated Aug 1, 2025Aug 1, 2025

    • hyperion

      Public
      This project enabled intercepting and virtualizing the browser API
      TypeScript
      •
      MIT License
      •27•41•4•8•Updated Aug 1, 2025Aug 1, 2025

    • Ax

      Public
      Adaptive Experimentation Platform
      Python
      •
      MIT License
      •341•2.5k•20•101•Updated Aug 1, 2025Aug 1, 2025

    • flow

      Public
      Adds static typing to JavaScript to improve developer productivity and code quality.
      OCaml
      •
      MIT License
      •1.9k•22k•658•14•Updated Aug 1, 2025Aug 1, 2025

    • infer

      Public
      A static analyzer for Java, C, C++, and Objective-C
      cobjective-ccppstatic-code-analysisstatic-analysiscode-qualityjava
      OCaml
      •
      MIT License
      •2k•15k•413•5•Updated Aug 1, 2025Aug 1, 2025

    • CacheLib

      Public
      Pluggable in-process caching engine to build and scale high performance services
      cppcacheconcurrencyssdcache-engineperformance
      C++
      •
      Apache License 2.0
      •295•1.4k•14•16•Updated Aug 1, 2025Aug 1, 2025