Stetho is a debug bridge for Android applications, enabling the powerful Chrome Developer Tools and much more.
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.
Distributed SQL query engine for running interactive analytic queries against big data sources.
Facebook Template Library: a library for fast prototyping of software in C++11 and up.
A library that provides an embeddable, persistent key-value store for fast storage.
A replacement for Apple's xcodebuild that makes it easier to build and test iOS or OSX apps.
An extension that allows inspection of React component hierarchy in Chrome Developer Tools.