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    150 repositories

    • pyrefly

      Public
      A fast type checker and IDE for Python
      pythonrusttypecheckertypeslanguage-serveridetypingcode-qualitytypechecktype-checker
      Rust
      •
      MIT License
      •136•3.4k•255•12•Updated Aug 4, 2025Aug 4, 2025

    • stylex

      Public
      StyleX is the styling system for ambitious user interfaces.
      JavaScript
      •
      MIT License
      •336•8.7k•57•6•Updated Aug 4, 2025Aug 4, 2025

    • react-native

      Public
      A framework for building native applications using React
      mobilecross-platformapp-frameworkmobile-developmentreactandroidiosreact-native
      C++
      •
      MIT License
      •25k•123k•651•439•Updated Aug 4, 2025Aug 4, 2025

    • litho

      Public
      A declarative framework for building efficient UIs on Android.
      Kotlin
      •
      Apache License 2.0
      •770•7.7k•56•51•Updated Aug 4, 2025Aug 4, 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 3, 2025Aug 3, 2025

    • hhvm

      Public
      A virtual machine for executing programs written in Hack.
      hacklangphphackhhvm
      C++
      •
      Other
      •3k•18k•407•93•Updated Aug 3, 2025Aug 3, 2025

    • fboss

      Public
      Facebook Open Switching System Software for controlling network switches.
      C++
      •
      Other
      •343•915•24•77•Updated Aug 3, 2025Aug 3, 2025

    • sapling

      Public
      A Scalable, User-Friendly Source Control System.
      Rust
      •
      GNU General Public License v2.0
      •314•6.5k•214•35•Updated Aug 3, 2025Aug 3, 2025

    • mvfst

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

    • watchman

      Public
      Watches files and records, or triggers actions, when they change.
      C++
      •
      MIT License
      •1k•13k•213•39•Updated Aug 3, 2025Aug 3, 2025

    • openr

      Public
      Distributed platform for building autonomic network functions.
      C++
      •
      MIT License
      •245•919•10•8•Updated Aug 3, 2025Aug 3, 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•15•16•Updated Aug 3, 2025Aug 3, 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
      •545•3.1k•34•11•Updated Aug 3, 2025Aug 3, 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
      •59•85•6•11•Updated Aug 3, 2025Aug 3, 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 3, 2025Aug 3, 2025

    • openbmc

      Public
      OpenBMC is an open software framework to build a complete Linux image for a Board Management Controller (BMC).
      C
      •296•658•42•6•Updated Aug 3, 2025Aug 3, 2025

    • react

      Public
      The library for web and native user interfaces.
      reactjavascriptlibraryuifrontenddeclarative
      JavaScript
      •
      MIT License
      •49k•238k•805•210•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

    • ocamlrep

      Public
      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
      •22•134•0•4•Updated Aug 2, 2025Aug 2, 2025

    • dotslash

      Public
      Simplified executable deployment
      Rust
      •
      Apache License 2.0
      •31•721•14•5•Updated Aug 2, 2025Aug 2, 2025

    • 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
      •50•58•1•1•Updated Aug 2, 2025Aug 2, 2025

    • react-native-devtools-frontend

      Public
      The Chrome DevTools UI, customized for React Native
      TypeScript
      •
      Other
      •562•49•0•1•Updated Aug 2, 2025Aug 2, 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 2, 2025Aug 2, 2025

    • mcrouter

      Public
      Mcrouter is a memcached protocol router for scaling memcached deployments.
      C++
      •
      MIT License
      •549•3.3k•97•22•Updated Aug 2, 2025Aug 2, 2025

    • flow

      Public
      Adds static typing to JavaScript to improve developer productivity and code quality.
      OCaml
      •
      MIT License
      •1.9k•22k•654•14•Updated Aug 2, 2025Aug 2, 2025

    • hermes

      Public
      A JavaScript engine optimized for running React Native.
      C++
      •
      MIT License
      •697•10k•119•70•Updated Aug 2, 2025Aug 2, 2025

    • metro

      Public
      🚇 The JavaScript bundler for React Native
      javascriptbundlerreact-native
      JavaScript
      •
      MIT License
      •664•5.4k•340•54•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