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    171 repositories

    • hhvm

      Public
      A virtual machine for executing programs written in Hack.
      phphackhhvm
      phphackhhvmhacklang
      C++
      •
      Other
      •3.1k•19k•408•129•Updated Jun 7, 2026Jun 7, 2026

    • sapling

      Public
      A Scalable, User-Friendly Source Control System.
      Rust
      •
      GNU General Public License v2.0
      •370•6.9k•230•83•Updated Jun 7, 2026Jun 7, 2026

    • buck2

      Public
      Build system, successor to Buck
      Rust
      •
      Apache License 2.0
      •359•4.4k•293•90•Updated Jun 7, 2026Jun 7, 2026

    • starlark-rust

      Public
      A Rust implementation of the Starlark language
      Rust
      •
      Apache License 2.0
      •102•978•29•13•Updated Jun 7, 2026Jun 7, 2026

    • flow

      Public
      Adds static typing to JavaScript to improve developer productivity and code quality.
      Rust
      •
      MIT License
      •1.9k•22k•595•10•Updated Jun 7, 2026Jun 7, 2026

    • pyrefly

      Public
      A fast type checker and language server for Python
      pythonrusttypechecker
      pythonrusttypecheckertypeslanguage-serveridetypingcode-qualityhacktoberfesttypecheck
      Rust
      •
      MIT License
      •389•6.6k•497•126•Updated Jun 7, 2026Jun 7, 2026

    • dotslash

      Public
      Simplified executable deployment
      Rust
      •
      Apache License 2.0
      •65•850•21•7•Updated Jun 7, 2026Jun 7, 2026

    • proxygen

      Public
      A collection of C++ HTTP libraries including an easy to use HTTP server.
      C++
      •
      Other
      •1.5k•8.3k•24•15•Updated Jun 7, 2026Jun 7, 2026

    • fboss

      Public
      Facebook Open Switching System Software for controlling network switches.
      C++
      •
      Other
      •393•974•25•125•Updated Jun 7, 2026Jun 7, 2026

    • idb

      Public
      idb is a flexible command line interface for automating iOS simulators and devices
      Swift
      •
      MIT License
      •495•5.1k•170•10•Updated Jun 7, 2026Jun 7, 2026

    • relay

      Public
      Relay is a JavaScript framework for building data-driven React applications.
      Rust
      •
      MIT License
      •1.9k•19k•629•213•Updated Jun 7, 2026Jun 7, 2026

    • fbthrift

      Public
      Facebook's branch of Apache Thrift, including a new C++ server.
      C++
      •
      Apache License 2.0
      •634•2.7k•45•4•Updated Jun 7, 2026Jun 7, 2026

    • react

      Public
      The library for web and native user interfaces.
      reactjavascriptlibrary
      reactjavascriptlibraryuifrontenddeclarative
      JavaScript
      •
      MIT License
      •51k•246k•839•493•Updated Jun 7, 2026Jun 7, 2026

    • 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
      •543•3.1k•34•13•Updated Jun 7, 2026Jun 7, 2026

    • watchman

      Public
      Watches files and records, or triggers actions, when they change.
      C++
      •
      MIT License
      •1.1k•14k•215•33•Updated Jun 7, 2026Jun 7, 2026

    • 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
      •63•92•6•13•Updated Jun 7, 2026Jun 7, 2026

    • openr

      Public
      Distributed platform for building autonomic network functions.
      C++
      •
      MIT License
      •250•935•11•11•Updated Jun 7, 2026Jun 7, 2026

    • mvfst

      Public
      An implementation of the QUIC transport protocol.
      C++
      •
      MIT License
      •284•1.6k•27•7•Updated Jun 7, 2026Jun 7, 2026

    • folly

      Public
      An open-source C++ library developed and used at Facebook.
      C++
      •
      Apache License 2.0
      •5.9k•30k•313•135•Updated Jun 7, 2026Jun 7, 2026

    • CacheLib

      Public
      Pluggable in-process caching engine to build and scale high performance services
      performancecppcache
      performancecppcacheconcurrencyssdcache-engine
      C++
      •
      Apache License 2.0
      •320•1.5k•0•19•Updated Jun 7, 2026Jun 7, 2026

    • 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 synchron…
      Rust
      •
      MIT License
      •26•144•0•7•Updated Jun 6, 2026Jun 6, 2026

    • Lifeguard

      Public
      Lifeguard is a static analyzer to detect Lazy Imports incompatibilities and ease the adoption overhead for Lazy Imports in Python
      pythonruststatic-analysis
      pythonruststatic-analysislazy-importspep810
      Python
      •
      MIT License
      •5•73•0•1•Updated Jun 6, 2026Jun 6, 2026

    • react-native

      Public
      A framework for building native applications using React
      reactandroidios
      reactandroidiosmobilereact-nativecross-platformapp-frameworkmobile-development
      C++
      •
      MIT License
      •25k•126k•714•341•Updated Jun 6, 2026Jun 6, 2026

    • 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…
      C++
      •
      Other
      •213•3.2k•3•2•Updated Jun 6, 2026Jun 6, 2026

    • react-native-website

      Public
      The React Native website and docs
      reactreact-nativedocusaurus
      reactreact-nativedocusaurus
      MDX
      •
      MIT License
      •6.1k•2.1k•9•85•Updated Jun 6, 2026Jun 6, 2026

    • lightweightvk

      Public
      LightweightVK is a deeply refactored bindless-only fork of IGL which is designed to run on top of modern Vulkan 1.3 with optional mesh shaders and ray tracing s…
      C++
      •
      Other
      •213•1•0•0•Updated Jun 6, 2026Jun 6, 2026

    • infer

      Public
      A static analyzer for Java, C, C++, and Objective-C
      cjavaobjective-c
      cjavaobjective-ccppstatic-code-analysisstatic-analysiscode-quality
      OCaml
      •
      MIT License
      •2.1k•16k•414•8•Updated Jun 6, 2026Jun 6, 2026

    • rocksdb

      Public
      A library that provides an embeddable, persistent key-value store for fast storage.
      databasestorage-engine
      databasestorage-engine
      C++
      •
      GNU General Public License v2.0
      •6.8k•32k•885•647•Updated Jun 6, 2026Jun 6, 2026

    • pyrefly-pre-commit

      Public
      A pre-commit hook for Pyrefly.
      Python
      •
      MIT License
      •4•27•1•0•Updated Jun 6, 2026Jun 6, 2026

    • hermes

      Public
      A JavaScript engine optimized for running React Native.
      JavaScript
      •
      MIT License
      •798•11k•130•87•Updated Jun 6, 2026Jun 6, 2026
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