Facebook

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

A framework for building native apps with React.

Used to integrate Android apps with Facebook Platform.

A React framework for building text editors.

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

Performant type-checking for python.

A virtual machine for executing programs written in Hack.

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

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

Set up a modern web app by running one command.

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

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

Platform to host Capture the Flag competitions

An SDK built to facilitate application development for Facebook Ads API.

A bytecode optimizer for Android apps

A declarative, efficient, and flexible JavaScript library for building user interfaces.

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

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

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

Facebook Open Switching System Software for controlling network switches.

Open source chef cookbooks.

Facebook's branch of the Oracle MySQL v5.6 database. This includes MyRocks.

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

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

Facebook ZeroMQ wrappers.

Delightful JavaScript Testing.

Generate fast deterministic screenshots during Android instrumentation tests

Facebook AI Performance Evaluation Platform

A desktop debugging platform for mobile developers.

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