Meta

React Strict DOM (RSD) standardizes the development of styled React components for web and native.

Deprecated modules that were formerly part of React Native.

A pre-commit hook for Pyrefly.

Tracks the status of the CDP implementation in Hermes and React Native projects.

A React-inspired view framework for iOS.

A framework for finding JavaScript memory leaks and analyzing heap snapshots

Wangle is a framework providing a set of common client/server abstractions for building services in a consistent, modular, and composable way.

A novel data compression framework

OpenBMC is an open software framework to build a complete Linux image for a Board Management Controller (BMC).

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.

WebXR made simple. Full-featured framework with interactions, locomotion, and spatial UI. Powered by Three.js.

eBPF-based packet filtering framework

A Python test framework

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 template meta-programming, while keeping the complexity under-the-hood.

SPARTA is a library of software components specially designed for building high-performance static analyzers based on the theory of Abstract Interpretation.

The Grocery Delivery utility for managing cookbook uploads to distributed Chef backends.

A library to provide calculations between Chef diffs.

Javascript implementation of the Ristretto255 group operations, built on top of the popular TweetNaCl.js crypto library

A low-level haptic rendering and data processing library based on a universal format.

Facebook's branch of Apache Thrift, including a new C++ server.

Facebook's branch of the Oracle MySQL database. This includes MyRocks.

An implementation of the QUIC transport protocol.

Pluggable in-process caching engine to build and scale high performance services

Trust & Safety tools for working together to fight digital harms.

Facebook Open Switching System Software for controlling network switches.

Transform360 is an equirectangular to cubemap transform for 360 video.

Distributed platform for building autonomic network functions.

Python wrapper for RE2

SQuangLe is a C++ API for accessing MySQL servers

fb303 is a core set of thrift functions that provide a common mechanism for querying stats and other information from a service.

A library that enables dynamically rebinding symbols in Mach-O binaries running on iOS.

iOS library to help detecting retain cycles in runtime.

An Android library that allows you to build text layouts more easily.

Native code loader for Android

A security focused static analysis tool for Android and Java applications.

A program that reformats Kotlin source code to comply with the common community standard for Kotlin code conventions.

Meta Wearables Device Access Toolkit for iOS

Meta Wearables Device Access Toolkit for Android

Receive and process logs from the Linux kernel.

Linux kernel consumed by OpenBMC

A fast type checker and language server for Python

PathPicker accepts a wide range of input -- output from git commands, grep results, searches -- pretty much anything. After parsing the input, PathPicker presents you with a nice UI to select which files you're interested in. After that you can open them in your favorite editor or execute arbitrary commands.

Language, engine, and tooling for expressing, testing, and evaluating composable language rules on input strings.

Build system, successor to Buck

Warp speed Data Transfer (WDT) is an embeddedable library (and command line tool) aiming to transfer data between 2 systems as fast as possible over multiple TCP paths.

Adaptive Experimentation Platform

The JSX specification is a XML-like syntax extension to ECMAScript.

Python SDK for Meta Marketing APIs

PHP SDK for Meta Marketing API

A STARK prover and verifier for arbitrary computations

A Rust implementation of the Starlark language

Simplified executable deployment

Node.js SDK for Meta Marketing APIs

Meta's Time libraries

The OpenStreetMap editor driven by open data, AI, and supercharged features

Open source chef cookbooks.

Java SDK for Meta Marketing APIs

The facebook sdk for unity.

Meta's Client Platform Engineering tools. Some of the tools we have written to help manage our fleet of client systems.

Facebook AI Performance Evaluation Platform

An implementation of the OPAQUE password-authenticated key exchange protocol

The official plugin from Meta. This repository is now officially maintained by Meta's engineering team. We welcome and encourage contributions from the community.

An implementation of an auditable key directory

Utilities related to Chef

Ruby SDK for Meta Marketing API

Collection of Meta's DNS Libraries

Facebook360 Depth Estimation Pipeline - https://facebook.github.io/facebook360_dep

OS X Homebrew formulas to install Meta open source software

Safe, minimal import sorting for Python projects.

Software to manage a chef-zero instance and use it to test changes on production servers.

Welcome to the Meta Threat Research Indicator Repository, a dedicated resource for the sharing of Indicators of Compromise (IOCs) and other threat indicators with the external research community

Post Processor for Facebook Static Analysis Tools.

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

Codegen project for our business SDKs

bunnylol is a tool for writing smart bookmarks. Use in your browser, or on the command-line

Prelude for the Buck2 project

This repository provides OpenAPI specifications for Meta APIs

An implementation of a verifiable oblivious pseudorandom function (RFC 9497)

This project enabled intercepting and virtualizing the browser API

Facebook Pixel - Custom Tag Template for Google Tag Manager.

Tracking Denx Das u-boot with various trusted computing add-ons.

An implementation of Oblivious RAM

Bookworm is a program that gleans context from a Chef/Ruby codebase leveraging RuboCop AST pattern matching

An experimental first-stage model used for quick and efficient inference on part of the data.

Setup Conversion Leads API integration using Salesforce APEX triggers on Lead objects

Conversions API parameter builder to help enhance the parameter qualities for Conversions API events

Create DotSlash files for GitHub releases

Set of scripts to help building OCaml projects using buck2.

Shims to convert Meta internal buck2 macros/targets for open source build compatibility.

This repo contains the Protocol Buffer schemas used for Meta's end-to-end encryption (E2EE) backend storage Encrypted Backups (EB). This can be used to deserialize the decrypted plaintext of the messaging data (or to serialize data).

An implementation of a PAKE based on a KEM

Python Static Analyzer

Set of filters and preferences that can be applied to content viewed in a content review tool.

Meta Audience Network allows you to monetize your iOS and Android apps with Facebook ads

Follow the README to run this mock firmware with the upstream fbnic driver, so it can respond to any messages the driver sends during development or testing.