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    169 repositories

    • sapling

      Public
      A Scalable, User-Friendly Source Control System.
      Rust
      •
      GNU General Public License v2.0
      •387•7k•237•125•Updated Aug 10, 2026Aug 10, 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
      •66•96•6•12•Updated Aug 10, 2026Aug 10, 2026

    • proxygen

      Public
      A collection of C++ HTTP libraries including an easy to use HTTP server.
      C++
      •
      Other
      •1.5k•8.4k•24•17•Updated Aug 10, 2026Aug 10, 2026

    • mvfst

      Public
      An implementation of the QUIC transport protocol.
      C++
      •
      MIT License
      •290•1.7k•25•11•Updated Aug 10, 2026Aug 10, 2026

    • folly

      Public
      An open-source C++ library developed and used at Facebook.
      C++
      •
      Apache License 2.0
      •5.9k•30k•317•141•Updated Aug 10, 2026Aug 10, 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
      •546•3.1k•34•14•Updated Aug 10, 2026Aug 10, 2026

    • CacheLib

      Public
      Pluggable in-process caching engine to build and scale high performance services
      performancecppcache
      performancecppcacheconcurrencyssdcache-engine
      C++
      •
      Apache License 2.0
      •321•1.6k•1•21•Updated Aug 10, 2026Aug 10, 2026

    • watchman

      Public
      Watches files and records, or triggers actions, when they change.
      C++
      •
      MIT License
      •1.1k•14k•220•33•Updated Aug 10, 2026Aug 10, 2026

    • fatal

      Public
      Fatal is a library for fast prototyping software in modern C++. It provides facilities to enhance the expressive power of C++. The library is heavily based on t…
      C++
      •
      Other
      •158•1k•0•0•Updated Aug 10, 2026Aug 10, 2026

    • mcrouter

      Public
      Mcrouter is a memcached protocol router for scaling memcached deployments.
      C++
      •
      MIT License
      •556•3.3k•97•19•Updated Aug 10, 2026Aug 10, 2026

    • astryx

      Public
      An open source design system that's fully customizable and agent ready
      TypeScript
      •
      MIT License
      •1k•12k•209•179•Updated Aug 10, 2026Aug 10, 2026

    • pyrefly

      Public
      A fast type checker and language server for Python
      pythonrusttypechecker
      pythonrusttypecheckertypeslanguage-serveridelanguage-server-protocoltypingvscode-extensioncode-quality
      Rust
      •
      MIT License
      •472•6.9k•518•167•Updated Aug 10, 2026Aug 10, 2026

    • idb

      Public
      idb is a flexible command line interface for automating iOS simulators and devices
      Swift
      •
      MIT License
      •500•5.3k•171•10•Updated Aug 10, 2026Aug 10, 2026

    • lexical

      Public
      Lexical is an extensible text editor framework that provides excellent reliability, accessibility and performance.
      TypeScript
      •
      MIT License
      •2.2k•24k•299•49•Updated Aug 10, 2026Aug 10, 2026

    • agentic-tools

      Public
      Agentic tools plugin and skills
      Python
      •
      MIT License
      •0•2•1•0•Updated Aug 10, 2026Aug 10, 2026

    • time

      Public
      Meta's Time libraries
      Go
      •
      Apache License 2.0
      •89•649•1•0•Updated Aug 10, 2026Aug 10, 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
      •218•3.2k•1•5•Updated Aug 10, 2026Aug 10, 2026

    • hermes

      Public
      A JavaScript engine optimized for running React Native.
      JavaScript
      •
      MIT License
      •839•11k•132•93•Updated Aug 10, 2026Aug 10, 2026

    • haptics-studio

      Public
      Haptics Studio is our desktop application for designing haptics.
      metahaptics
      metahaptics
      TypeScript
      •
      MIT License
      •9•48•1•0•Updated Aug 10, 2026Aug 10, 2026

    • memlab

      Public
      A framework for finding JavaScript memory leaks and analyzing heap snapshots
      nodejsjavascriptperformance
      nodejsjavascriptperformancefacebookv8memorysnapshotdetectore2eheap
      TypeScript
      •
      MIT License
      •143•5k•11•2•Updated Aug 10, 2026Aug 10, 2026

    • hhvm

      Public
      A virtual machine for executing programs written in Hack.
      phphackhhvm
      phphackhhvmhacklang
      C++
      •
      Other
      •3.1k•19k•411•132•Updated Aug 10, 2026Aug 10, 2026

    • DNE-TaaC

      Public
      TAAC (Test-As-A-Config) is a thrift-defined integration test framework for validating datacenter network products and platforms.
      Python
      •
      Apache License 2.0
      •3•2•0•0•Updated Aug 10, 2026Aug 10, 2026

    • immersive-web-sdk

      Public
      WebXR made simple. Full-featured framework with interactions, locomotion, and spatial UI. Powered by Three.js.
      TypeScript
      •
      MIT License
      •73•364•22•10•Updated Aug 10, 2026Aug 10, 2026

    • stylex

      Public
      StyleX is the styling system for ambitious user interfaces.
      JavaScript
      •
      MIT License
      •450•9.7k•118•101•Updated Aug 10, 2026Aug 10, 2026

    • buck2

      Public
      Build system, successor to Buck
      Rust
      •
      Apache License 2.0
      •386•4.4k•291•77•Updated Aug 10, 2026Aug 10, 2026

    • starlark-rust

      Public
      A Rust implementation of the Starlark language
      Rust
      •
      Apache License 2.0
      •113•1k•26•13•Updated Aug 10, 2026Aug 10, 2026

    • fboss

      Public
      Facebook Open Switching System Software for controlling network switches.
      C++
      •
      Other
      •406•983•26•151•Updated Aug 10, 2026Aug 10, 2026

    • litho

      Public
      A declarative framework for building efficient UIs on Android.
      Kotlin
      •
      Apache License 2.0
      •764•7.8k•60•55•Updated Aug 10, 2026Aug 10, 2026

    • openbmc

      Public
      OpenBMC is an open software framework to build a complete Linux image for a Board Management Controller (BMC).
      C
      •
      Apache License 2.0
      •308•683•45•16•Updated Aug 9, 2026Aug 9, 2026

    • openr

      Public
      Distributed platform for building autonomic network functions.
      C++
      •
      MIT License
      •253•936•11•11•Updated Aug 9, 2026Aug 9, 2026
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