Repositories list

• bpfilter

  Public

  facebook/bpfilter’s past year of commit activity
  BPF-based packet filtering framework

  C

  •

  GNU General Public License v2.0

  •48•303•24•4•Updated Jan 27, 2026Jan 27, 2026

• facebook-for-woocommerce

  Public

  facebook/facebook-for-woocommerce’s past year of commit activity
  The official plugin from Meta. This repository is now officially maintained by Meta's engineering team. We welcome and encourage contributions from the community.

  PHP

  •

  GNU General Public License v2.0

  •180•247•79•138•Updated Jan 27, 2026Jan 27, 2026

• stylex

  Public

  facebook/stylex’s past year of commit activity
  StyleX is the styling system for ambitious user interfaces.

  JavaScript

  •

  MIT License

  •384•9.1k•91•25•Updated Jan 27, 2026Jan 27, 2026

• hhvm

  Public

  facebook/hhvm’s past year of commit activity
  A virtual machine for executing programs written in Hack.

  phphackhhvm+ 1hacklang

  C++

  •

  Other

  •3.1k•19k•409•115•Updated Jan 27, 2026Jan 27, 2026

• folly

  Public
  An open-source C++ library developed and used at Facebook.

  C++

  •

  Apache License 2.0

  •5.8k•30k•310•132•Updated Jan 27, 2026Jan 27, 2026

• fboss

  Public

  facebook/fboss’s past year of commit activity
  Facebook Open Switching System Software for controlling network switches.

  C++

  •

  Other

  •375•946•25•118•Updated Jan 27, 2026Jan 27, 2026

• react-native

  Public
  A framework for building native applications using React

  reactandroidios+ 5mobilereact-nativecross-platformapp-frameworkmobile-development

  C++

  •

  MIT License

  •25k•125k•734•458•Updated Jan 27, 2026Jan 27, 2026

• hermes

  Public

  facebook/hermes’s past year of commit activity
  A JavaScript engine optimized for running React Native.

  JavaScript

  •

  MIT License

  •730•11k•120•57•Updated Jan 27, 2026Jan 27, 2026

• fbthrift

  Public

  facebook/fbthrift’s past year of commit activity
  Facebook's branch of Apache Thrift, including a new C++ server.

  C++

  •

  Apache License 2.0

  •626•2.7k•44•5•Updated Jan 27, 2026Jan 27, 2026

• lexical

  Public

  facebook/lexical’s past year of commit activity
  Lexical is an extensible text editor framework that provides excellent reliability, accessibility and performance.

  TypeScript

  •

  MIT License

  •2.1k•23k•541•39•Updated Jan 27, 2026Jan 27, 2026

• flow

  Public

  facebook/flow’s past year of commit activity
  Adds static typing to JavaScript to improve developer productivity and code quality.

  OCaml

  •

  MIT License

  •1.9k•22k•605•14•Updated Jan 27, 2026Jan 27, 2026

• buck2

  Public
  Build system, successor to Buck

  Rust

  •

  Apache License 2.0

  •323•4.2k•273•63•Updated Jan 27, 2026Jan 27, 2026

• pyrefly

  Public

  facebook/pyrefly’s past year of commit activity
  A fast type checker and language server for Python

  pythonrusttypechecker+ 12typeslanguage-serveridetypingcode-qualityhacktoberfesttypecheck+ 5

  Rust

  •

  MIT License

  •259•5.3k•373•45•Updated Jan 27, 2026Jan 27, 2026

• buck2-prelude

  Public

  facebook/buck2-prelude’s past year of commit activity
  Prelude for the Buck2 project

  Starlark

  •

  Apache License 2.0

  •60•60•1•1•Updated Jan 27, 2026Jan 27, 2026

• prophet

  Public

  facebook/prophet’s past year of commit activity
  Tool for producing high quality forecasts for time series data that has multiple seasonality with linear or non-linear growth.

  pythonrforecasting

  Python

  •

  MIT License

  •4.6k•20k•453•11•Updated Jan 27, 2026Jan 27, 2026

• infer

  Public

  facebook/infer’s past year of commit activity
  A static analyzer for Java, C, C++, and Objective-C

  cjavaobjective-c+ 4cppstatic-code-analysisstatic-analysiscode-quality

  OCaml

  •

  MIT License

  •2.1k•15k•393•6•Updated Jan 27, 2026Jan 27, 2026

• TestSlide

  Public

  facebook/TestSlide’s past year of commit activity
  A Python test framework

  Python

  •

  MIT License

  •57•147•36•4•Updated Jan 27, 2026Jan 27, 2026

• Pysa

  Public

  facebook/Pysa’s past year of commit activity
  Python Static Analyzer

  CSS

  •

  MIT License

  •1•3•0•6•Updated Jan 27, 2026Jan 27, 2026

• fresco

  Public

  facebook/fresco’s past year of commit activity
  An Android library for managing images and the memory they use.

  Java

  •

  MIT License

  •3.8k•17k•244•13•Updated Jan 27, 2026Jan 27, 2026

• kuduraft

  Public

  facebook/kuduraft’s past year of commit activity
  A Raft Library in C++ based on the Raft implementation in Apache Kudu

  C++

  •

  Apache License 2.0

  •661•143•0•0•Updated Jan 27, 2026Jan 27, 2026

• igl

  Public

  facebook/igl’s past year of commit activity
  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

  •206•3.2k•4•7•Updated Jan 27, 2026Jan 27, 2026

• pyrefly-pre-commit

  Public

  facebook/pyrefly-pre-commit’s past year of commit activity
  A pre-commit hook for Pyrefly.

  Python

  •

  MIT License

  •4•18•1•0•Updated Jan 27, 2026Jan 27, 2026

• rocksdb

  Public

  facebook/rocksdb’s past year of commit activity
  A library that provides an embeddable, persistent key-value store for fast storage.

  databasestorage-engine

  C++

  •

  GNU General Public License v2.0

  •6.7k•31k•828•555•Updated Jan 27, 2026Jan 27, 2026

• Ax

  Public

  facebook/Ax’s past year of commit activity
  Adaptive Experimentation Platform

  Python

  •

  MIT License

  •358•2.7k•33•138•Updated Jan 27, 2026Jan 27, 2026

• sapling

  Public

  facebook/sapling’s past year of commit activity
  A Scalable, User-Friendly Source Control System.

  Rust

  •

  GNU General Public License v2.0

  •337•6.7k•231•66•Updated Jan 27, 2026Jan 27, 2026

• starlark-rust

  Public

  facebook/starlark-rust’s past year of commit activity
  A Rust implementation of the Starlark language

  Rust

  •

  Apache License 2.0

  •84•920•30•21•Updated Jan 27, 2026Jan 27, 2026

• memlab

  Public

  facebook/memlab’s past year of commit activity
  A framework for finding JavaScript memory leaks and analyzing heap snapshots

  nodejsjavascriptperformance+ 10facebookv8memorysnapshotdetectore2eheap+ 3

  JavaScript

  •

  MIT License

  •135•4.8k•11•1•Updated Jan 27, 2026Jan 27, 2026

• mvfst

  Public

  facebook/mvfst’s past year of commit activity
  An implementation of the QUIC transport protocol.

  C++

  •

  MIT License

  •278•1.6k•39•8•Updated Jan 27, 2026Jan 27, 2026

• redex

  Public

  facebook/redex’s past year of commit activity
  A bytecode optimizer for Android apps

  C++

  •

  MIT License

  •681•6.3k•56•16•Updated Jan 27, 2026Jan 27, 2026

• OpenBIC

  Public

  facebook/OpenBIC’s past year of commit activity
  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•62•5•1•Updated Jan 27, 2026Jan 27, 2026