facebook Repositories

facebook/jscodeshiftJavaScript

A JavaScript codemod toolkit.

Last commit Oct 29, 2023

(8,792 stars) (519 forks) (0 indexed issues) (0 open good first issues)

facebook/lexicalJavaScript

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

Last commit Jan 18, 2024

(16,523 stars) (1,349 forks) (7 indexed issues) (7 open good first issues)

facebook/lithoKotlin

A declarative framework for building efficient UIs on Android.

Last commit May 11, 2026

(7,765 stars) (763 forks) (0 indexed issues) (0 open good first issues)

facebook/metroJavaScript

🚇 The JavaScript bundler for React Native

Last commit Dec 25, 2023

(4,966 stars) (683 forks) (0 indexed issues) (0 open good first issues)

facebook/prop-typesJavaScript

Runtime type checking for React props and similar objects

Last commit Jul 19, 2023

(4,379 stars) (389 forks) (4 indexed issues) (4 open good first issues)

facebook/prophetPython

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

Last commit Apr 4, 2024

(17,686 stars) (4,451 forks) (15 indexed issues) (15 open good first issues)

facebook/proxygenC++

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

Last commit Oct 16, 2023

(7,904 stars) (1,536 forks) (0 indexed issues) (0 open good first issues)

facebook/pyre-checkPython

Performant type-checking for python.

Last commit Dec 20, 2023

(6,580 stars) (472 forks) (0 indexed issues) (0 open good first issues)

facebook/reactJavaScript

The library for web and native user interfaces.

Last commit May 14, 2026

(245,029 stars) (51,039 forks) (1 indexed issue) (1 open good first issue)

facebook/react-devtoolsJavaScript

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

Last commit May 17, 2019

(10,089 stars) (1,450 forks) (0 indexed issues) (0 open good first issues)

facebook/react-nativeC++

A framework for building native applications using React

Last commit May 14, 2026

(125,808 stars) (25,149 forks) (8 indexed issues) (8 open good first issues)

facebook/redexC++

A bytecode optimizer for Android apps

Last commit Oct 17, 2020

(5,107 stars) (550 forks) (2 indexed issues) (2 open good first issues)

facebook/regeneratorJavaScript

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

Last commit Nov 9, 2023

(3,776 stars) (1,198 forks) (0 indexed issues) (0 open good first issues)

facebook/relayRust

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

Last commit Feb 2, 2026

(18,930 stars) (1,874 forks) (11 indexed issues) (11 open good first issues)

facebook/rocksdbC++

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

Last commit May 15, 2026

(31,674 stars) (6,825 forks) (0 indexed issues) (0 open good first issues)

facebook/saplingRust

A Scalable, User-Friendly Source Control System.

Last commit Jan 29, 2023

(4,649 stars) (182 forks) (4 indexed issues) (4 open good first issues)

facebook/stethoJava

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

Last commit Mar 23, 2023

(12,643 stars) (1,163 forks) (9 indexed issues) (9 open good first issues)

facebook/watchmanC++

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

Last commit Jan 20, 2024

(12,097 stars) (1,009 forks) (0 indexed issues) (0 open good first issues)

facebook/yogaC++

Yoga is an embeddable layout engine targeting web standards.

Last commit Apr 8, 2026

(18,823 stars) (1,526 forks) (0 indexed issues) (0 open good first issues)

facebook/zstdC

Zstandard - Fast real-time compression algorithm

Last commit May 14, 2026

(27,100 stars) (2,481 forks) (17 indexed issues) (17 open good first issues)