A framework for building native applications using React

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

A virtual machine for executing programs written in Hack.

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

A bytecode optimizer for Android apps

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.

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

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

Distributed platform for building autonomic network functions.

Facebook Open Switching System Software for controlling network switches.