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

An in-app debugging and exploration tool for iOS

Spectacle allows you to organize your windows without using a mouse.

A fast & simple, yet powerful & flexible logging framework for macOS, iOS, tvOS and watchOS

Staggeringly powerful macOS desktop automation with Lua

Model framework for Cocoa and Cocoa Touch

Mac app that shows all open files, directories, sockets, pipes and devices in use by all running processes. Nice GUI for lsof.

iOS library for quickly displaying images while scrolling

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

An extension for Apple's xcodebuild that makes it easier to test iOS and macOS apps.

Runtime Code Injection for Objective-C & Swift

The Ultimate iOS Crash Reporter

Xcode plug-in that provides autocomplete for imageNamed: calls

Objective-C Runtime Browser, for Mac OS X and iOS

YapDB is a collection/key/value store with a plugin architecture. It's built atop sqlite, for Swift & objective-c developers.

Core Data Editor lets you easily view, edit and analyze applications‘ data. Core Data Editor is compatible with Mac and iOS applications and supports XML, SQLite and binary stores, visualizes all r…

A fast, simple graph drawing and data plotting app for OS X and iPad.

A DSL for Data Manipulation

A command line tool to manipulate tags on Mac OS X files, and to query for files with those tags.

Semantic highlighting for Xcode.

media player on Mac OS X

Extracts the build settings of an Xcode project into xcconfig build configuration files.

Mockito for Objective-C: creation, verification and stubbing of mock objects

An API for manipulating Xcode project files.

Objective C Generics

MIDI Library for Swift and Objective-C Mac and iOS apps.

Network bandwidth limiter for testing iphone apps

alternative system for creating and adding Cocoa Auto Layout constraints

Flying Meat's classes for reading and writing PSD images.