Meta ORG

Easy to maintain open source documentation websites.

Open-source tool that turns Markdown files into a professional documentation website with built-in search, versioning, and internationalization, no frontend coding required.

A virtual machine for executing programs written in Hack.

HHVM is a runtime that executes Hack, a statically-typed language for web development. It uses just-in-time compilation to translate code into machine code at runtime for better performance.

Zstandard - Fast real-time compression algorithm

A fast, efficient compression algorithm that squishes files smaller and decompresses them quicker than older methods like ZIP, used by databases and web servers worldwide.

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

A TypeScript framework for building customizable rich-text editors in web apps. Assemble plugins to create editors like Notion or Google Docs.

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

Embeddable key-value storage library optimized for fast hardware like SSDs. Designed for high-throughput applications that need a local database engine.

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

A collection of high-performance C++ components and data structures used at Meta, filling gaps in the standard library with designs optimized for large-scale production systems.

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

Static type checker for JavaScript that catches type errors during development before code runs, using optional type annotations and inference.

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

Prophet is a forecasting tool that predicts future values in time series data by automatically detecting trends, seasonal patterns, and holiday effects without requiring manual tuning.

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

A JavaScript framework that automatically manages data fetching and updates for React apps using GraphQL, so you don't have to manually request and sync data.

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

Meta's Android library for loading and displaying images. Handles memory, two-level caching, progressive JPEGs, animated GIFs, and WebP without app-level plumbing.

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

Static analysis tool from Facebook that scans Java, C, C++, and Objective-C source for null derefs, memory leaks, and other bugs without running the code.

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.

A JavaScript codemod toolkit.

StyleX is the styling system for ambitious user interfaces.

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.

Performant type-checking for python.

A Scalable, User-Friendly Source Control System.

A fast type checker and language server 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.

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.

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

A framework for finding JavaScript memory leaks and analyzing heap snapshots

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.

Build system, successor to Buck

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.

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).

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

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

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

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.

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

Python SDK for Meta Marketing APIs

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

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

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 keeping the complexity under-the-hood.

A Rust implementation of the Starlark language

Facebook Open Switching System Software for controlling network switches.

Distributed platform for building autonomic network functions.

PHP SDK for Meta Marketing API

A STARK prover and verifier for arbitrary computations

Simplified executable deployment

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

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

Meta's Time libraries

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

Node.js SDK for Meta Marketing APIs

Open source chef cookbooks.

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.

No description.

Java SDK for Meta Marketing APIs

Meta Wearables Device Access Toolkit for iOS

An implementation of the OPAQUE password-authenticated key exchange protocol

Facebook AI Performance Evaluation Platform

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

QuickLayout is a custom-built, declarative layout library for iOS designed to work seamlessly with UIKit.

eBPF-based packet filtering framework

An implementation of an auditable key directory

Meta Wearables Device Access Toolkit for Android

Collection of Meta's DNS Libraries

Utilities related to Chef

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

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

Meta fork of the OG Jemalloc project

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

Ruby SDK for Meta Marketing API

Safe, minimal import sorting for Python projects.

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.

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

A Python test framework

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

A Raft Library in C++ based on the Raft implementation in Apache Kudu

Post Processor for Facebook Static Analysis Tools.

This repository provides OpenAPI specifications for Meta APIs

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

SQuangLe is a C++ API for accessing MySQL servers

OS X Homebrew formulas to install Meta open source software

MySQL Server, the world's most popular open source database, and MySQL Cluster, a real-time, open source transactional database.

Codegen project for our business SDKs

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

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

Lifeguard is a static analyzer to detect Lazy Imports incompatibilities and ease the adoption overhead for Lazy Imports in Python

Prelude for the Buck2 project

BICs (Bridge IC) are standalone devices deployed within a Data Center that enable monitoring a multi-host system using a single BMC device.

Deprecated modules that were formerly part of React Native.

Receive and process logs from the Linux kernel.

An Error-Recovering Parser for Python

A library to provide calculations between Chef diffs.

Facebook Pixel - Custom Tag Template for Google Tag Manager.

Kernel-level eBPF sandbox for securing LLM agent tool calls made through the Model Context Protocol (MCP)

This project enabled intercepting and virtualizing the browser API

Linux kernel consumed by OpenBMC

Haptics Studio is our desktop application for designing haptics.

An implementation of Oblivious RAM

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

A pre-commit hook for Pyrefly.

GitHub Action for Pysa

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

GitHub Action for Pyre

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

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

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

Default Community health files for Facebook projects

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

Mirror of the Glasgow Haskell Compiler. Patches are best submitted to GHC's Phabricator (https://phabricator.haskell.org/), bugs and feature-requests are best filed to GHC's Trac (https://ghc.haskell.org/trac/ghc), or sent to the mailing list ([email protected]).

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

Fork of https//www.npmjs.com/package/react-router v3.0.5

Create DotSlash files for GitHub releases

Meta's BGP (Border Gateway Protocol) routing daemon for large-scale data center networks, built as part of the FBOSS forwarding stack.

A Zapier integration with Meta Shops orders using the Commerce API (https//developers.facebook.com/docs/commerce-platform/)

Set of scripts to help building OCaml projects using buck2.

An implementation of a SAS-based authenticated key exchange

A fork of the HOTOSM Tasking Manager (tasks.hotosm.org) to deploy and test experimental integrations and features.

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).

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

This new SDK supports the Instant Games SDK v8.0, ensuring access to the latest features and APIs for Instant Games. We also provide code snippets through the sample scene, and templates for OverlayViews.

An implementation of a PAKE based on a KEM

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

SPIR-V specs

A simple GitHub Action to install a precompiled dotslash binary

glTF – Runtime 3D Asset Delivery

Graphics API Capture and Replay Tools for Reconstructing Graphics Application Behavior

This repo contains the QEMU that simulates hardware for the fbnic driver

Python Static Analyzer

SPIRV-Headers

Official WordPress plugin for embedding Threads and Instagram content. Simply paste a Threads or Instagram URL into the WordPress editor and get a rich embed. No access tokens or configuration required.

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.

glTF Experience Format (glXF)

To store all models and other assets related to glTF

A first-party extension plugin built for WooCommerce.

TAAC (Test-As-A-Config) is a thrift-defined integration test framework for validating datacenter network products and platforms.

LightweightVK is a deeply refactored bindless-only fork of IGL which is designed to run on top of modern Vulkan 1.3 with optional mesh shaders and ray tracing support. Meta's version is a fork of the upstream LightweightVK, tailored for better compatibility with current and upcoming Meta products.

Generate multi-language strongly-typed client libraries around Rust CLIs.

No description.

Command-line tool for independently verifying the integrity of artifacts published to Meta's binary transparency log. Validates SHA-256 digests, Cloudflare Ed25519 signatures, Meta counter-signatures, and cross-checks against Cloudflare's Key Transparency auditor.

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