An open source iOS framework for GPU-based image and video processing

Package manager for Xcode

A window management application (replacement for Divvy/SizeUp/ShiftIt)

Send User Notifications on macOS from the command-line.

Keep It Functional - An iOS Functional Testing Framework

Remote network and data debugging for your native iOS app using Chrome Developer Tools

Re-write of Injection for Xcode in (mostly) Swift

This framework implements a strict JSON parser and generator in Objective-C.

A Xcode 5+ plugin that adds more flexible autocompletion rather than just prefix-matching.

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

iOS-app template with lots of common tasks solved

SPDY for iOS and OS X

Programmers' editor for OS X [DEAD PROJECT]

Snapshot view unit tests for iOS

Cocoa framework for updating OS X apps

Brings back the unique identifier support under iOS 5, it uses the device's mac address in combination with the bundle identifier to generate a new hashed unique identifier.

An easy way to get Twitter authenticating with OAuth on iPhone

A really, really dumb Xcode/LLVM/clang bug…