Facebook

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

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

Delightful JavaScript Testing.

A virtual machine for executing programs written in Hack.

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

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.

Performant type-checking for python.

The site and docs for React Native

Facebook Open Switching System Software for controlling network switches.

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

Facebook ZeroMQ wrappers.

Distributed platform for building autonomic network functions.

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

Bistro is a flexible distributed scheduler, a high-performance framework supporting multiple paradigms while retaining ease of configuration, management, and monitoring.

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

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.

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

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

Easy to maintain open source documentation websites.

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

SQL powered operating system instrumentation, monitoring, and analytics.

Zstandard - Fast real-time compression algorithm

Set up a modern web app by running one command.

A JavaScript codemod toolkit.

Simple, fast & type safe code that leverages the JavaScript & OCaml ecosystems

Facebook AI Performance Evaluation Platform

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

A bytecode optimizer for Android apps

Mcrouter is a memcached protocol router for scaling memcached deployments.