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    • openzl

      Public
      A novel data compression framework
      C
      Other
      1413k3846Updated Apr 24, 2026Apr 24, 2026
    • react-native

      Public
      A framework for building native applications using React
      C++
      MIT License
      25k126k760531Updated Apr 24, 2026Apr 24, 2026
    • fboss

      Public
      Facebook Open Switching System Software for controlling network switches.
      C++
      Other
      38596425123Updated Apr 24, 2026Apr 24, 2026
    • pyrefly

      Public
      A fast type checker and language server for Python
      Rust
      MIT License
      3145.6k436131Updated Apr 24, 2026Apr 24, 2026
    • flow

      Public
      Adds static typing to JavaScript to improve developer productivity and code quality.
      Rust
      MIT License
      1.9k22k59713Updated Apr 24, 2026Apr 24, 2026
    • idb

      Public
      idb is a flexible command line interface for automating iOS simulators and devices
      Objective-C
      MIT License
      4855k16926Updated Apr 24, 2026Apr 24, 2026
    • buck2

      Public
      Build system, successor to Buck
      Rust
      Apache License 2.0
      3424.3k29293Updated Apr 24, 2026Apr 24, 2026
    • Prelude for the Buck2 project
      Starlark
      Apache License 2.0
      596511Updated Apr 24, 2026Apr 24, 2026
    • rocksdb

      Public
      A library that provides an embeddable, persistent key-value store for fast storage.
      C++
      GNU General Public License v2.0
      6.8k32k869618Updated Apr 24, 2026Apr 24, 2026
    • Ax

      Public
      Adaptive Experimentation Platform
      Python
      MIT License
      3662.7k33161Updated Apr 24, 2026Apr 24, 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
      5463.1k3413Updated Apr 24, 2026Apr 24, 2026
    • sapling

      Public
      A Scalable, User-Friendly Source Control System.
      Rust
      GNU General Public License v2.0
      3636.8k22566Updated Apr 24, 2026Apr 24, 2026
    • CacheLib

      Public
      Pluggable in-process caching engine to build and scale high performance services
      C++
      Apache License 2.0
      3191.5k1533Updated Apr 24, 2026Apr 24, 2026
    • proxygen

      Public
      A collection of C++ HTTP libraries including an easy to use HTTP server.
      C++
      Other
      1.5k8.3k2412Updated Apr 24, 2026Apr 24, 2026
    • openr

      Public
      Distributed platform for building autonomic network functions.
      C++
      MIT License
      2479321010Updated Apr 24, 2026Apr 24, 2026
    • The official plugin from Meta. This repository is now officially maintained by Meta's engineering team. We welcome and encourage contributions from the communit…
      PHP
      GNU General Public License v2.0
      18425387141Updated Apr 24, 2026Apr 24, 2026
    • fbthrift

      Public
      Facebook's branch of Apache Thrift, including a new C++ server.
      C++
      Apache License 2.0
      6322.7k455Updated Apr 24, 2026Apr 24, 2026
    • mvfst

      Public
      An implementation of the QUIC transport protocol.
      C++
      MIT License
      2851.6k415Updated Apr 24, 2026Apr 24, 2026
    • watchman

      Public
      Watches files and records, or triggers actions, when they change.
      C++
      MIT License
      1.1k14k21334Updated Apr 24, 2026Apr 24, 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
      6492613Updated Apr 24, 2026Apr 24, 2026
    • Lifeguard

      Public
      Lifeguard is a static analyzer to detect Lazy Imports incompatibilities and ease the adoption overhead for Lazy Imports in Python
      Python
      MIT License
      54101Updated Apr 24, 2026Apr 24, 2026
    • lexical

      Public
      Lexical is an extensible text editor framework that provides excellent reliability, accessibility and performance.
      TypeScript
      MIT License
      2.1k23k49319Updated Apr 24, 2026Apr 24, 2026
    • bpfilter

      Public
      eBPF-based packet filtering framework
      C
      GNU General Public License v2.0
      603262210Updated Apr 24, 2026Apr 24, 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
      2113.2k27Updated Apr 24, 2026Apr 24, 2026
    • metro

      Public
      🚇 The JavaScript bundler for React Native
      JavaScript
      MIT License
      6775.6k36373Updated Apr 24, 2026Apr 24, 2026
    • folly

      Public
      An open-source C++ library developed and used at Facebook.
      C++
      Apache License 2.0
      5.9k30k333132Updated Apr 24, 2026Apr 24, 2026
    • A low-level haptic rendering and data processing library based on a universal format.
      Rust
      MIT License
      11200Updated Apr 24, 2026Apr 24, 2026
    • lexical-ios

      Public
      Lexical iOS is an extensible text editor framework that integrates the APIs and philosophies from Lexical Web with a Swift API built on top of TextKit.
      Swift
      MIT License
      60655219Updated Apr 24, 2026Apr 24, 2026
    • hermes

      Public
      A JavaScript engine optimized for running React Native.
      JavaScript
      MIT License
      76211k12979Updated Apr 24, 2026Apr 24, 2026
    • relay

      Public
      Relay is a JavaScript framework for building data-driven React applications.
      Rust
      MIT License
      1.9k19k625211Updated Apr 24, 2026Apr 24, 2026
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