meta

Easy to maintain open source documentation websites.

A library that provides an embeddable, persistent key-value store for fast storage.

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

Zstandard - Fast real-time compression algorithm

Lexical is an extensible text editor framework that provides excellent reliability, accessibility and performance.

An open source design system that's fully customizable and agent ready

Adds static typing to JavaScript to improve developer productivity and code quality.

Tool for producing high quality forecasts for time series data that has multiple seasonality with linear or non-linear growth.

Relay is a JavaScript framework for building data-driven React applications.

A virtual machine for executing programs written in Hack.

An Android library for managing images and the memory they use.

A static analyzer for Java, C, C++, and Objective-C

Watches files and records, or triggers actions, when they change.

A desktop debugging platform for mobile developers.

Stetho is a debug bridge for Android applications, enabling the powerful Chrome Developer Tools and much more.

A JavaScript engine optimized for running React Native.

An extension that allows inspection of React component hierarchy in the Chrome and Firefox Developer Tools.

StyleX is the styling system for ambitious user interfaces.

A JavaScript codemod toolkit.

Chisel is a collection of LLDB commands to assist debugging iOS apps.

A fast build system that encourages the creation of small, reusable modules over a variety of platforms and languages.

A collection of C++ HTTP libraries including an easy to use HTTP server.

Used to integrate the Facebook Platform with your iOS & tvOS apps.

A declarative framework for building efficient UIs on Android.

A Scalable, User-Friendly Source Control System.

A fast type checker and language server for Python

Performant type-checking for python.

Used to integrate Android apps with Facebook Platform.

A bytecode optimizer for Android apps

A React-inspired view framework for iOS.

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

idb is a flexible command line interface for automating iOS simulators and devices

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...

A framework for finding JavaScript memory leaks and analyzing heap snapshots

Build system, successor to Buck

Runtime type checking for React props and similar objects

A Haskell library that simplifies access to remote data, such as databases or web-based services.

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

iOS library to help detecting retain cycles in runtime.

A JavaScript Internationalization Framework

Source transformer enabling ECMAScript 6 generator functions in JavaScript-of-today.

Mcrouter is a memcached protocol router for scaling memcached deployments.

A novel take on lossless data compression

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...

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

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

Meta's Thrift implementation: cross-language serialization and high-performance async RPC

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

A collection of utility libraries used by other Meta JS projects.

Generate fast deterministic screenshots during Android instrumentation tests

Library for accessing arbitrarily nested, possibly nullable properties on a JavaScript object.

An implementation of the QUIC transport protocol.

Python SDK for Meta Marketing APIs

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

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

Native code loader for Android

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

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

dhcplb is Facebook's implementation of a load balancer for DHCP.

A Rust implementation of the Starlark language

Transform360 is an equirectangular to cubemap transform for 360 video.

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...

Facebook Open Switching System Software for controlling network switches.

Distributed platform for building autonomic network functions.

PHP SDK for Meta Marketing API

Simplified executable deployment

A STARK prover and verifier for arbitrary computations

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

Meta's Time libraries

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

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.

Python wrapper for RE2

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

Node.js SDK for Meta Marketing APIs

Open source chef cookbooks.

Meta Wearables Device Access Toolkit for iOS

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

The facebook sdk for unity.

Rebalancer is a domain-specific language and tool for specifying and solving assignment problems (eg, putting balls in boxes with complex rules).

Java SDK for Meta Marketing APIs

An implementation of the OPAQUE password-authenticated key exchange protocol

Meta Wearables Device Access Toolkit for Android

Facebook AI Performance Evaluation Platform

QuickLayout is a production-ready declarative layout library for UIKit. Built for large-scale applications, it combines expressive Swift APIs with a lightweight layout engine to deliver high...

eBPF-based packet filtering framework

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

An implementation of an auditable key directory

Collection of Meta's DNS Libraries

Utilities related to Chef

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

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

A Tacacs+ Daemon tested on Linux (CentOS) to run AAA via TACACS+ Protocol via IPv4 and IPv6.

AI-assisted development toolkit for building web applications on Meta Ray-Ban Display glasses.

Ruby SDK for Meta Marketing API

Safe, minimal import sorting for Python projects.

This repository provides OpenAPI specifications for Meta APIs

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

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