An iOS/OSX bridge for sending messages between Obj-C and JavaScript in UIWebViews/WebViews

Darwin/macOS emulation layer for Linux

The Git interface you've been missing all your life has finally arrived.

Magical Data Modeling Framework for JSON - allows rapid creation of smart data models. You can use it in your iOS, macOS, watchOS and tvOS apps.

OS X menubar status indicator

Itsycal is a tiny calendar for your Mac's menu bar. http://www.mowglii.com/itsycal

Bluepill is a reliable iOS testing tool that runs UI tests using multiple simulators on a single machine

NeXTSTEP-like desktop environment for Linux

An accurate, portable emulator of legacy computer systems.