Top Objective-C GitHub Repositories & Open Source Projects (2026)

A cross-platform web server that's scripted with Nu.

An applescript droplet which opens GitX in the current Finder directory (useful as a Finder toolbar item)

Cocoa "dial" custom control in the style of Logic Pro and Ableton Live

Objective-C wrapper around the Core Foundation ABPerson API for accessing contacts from your Address Book

Image viewer for OSX

Diffly is a tool for exploring Subversion working copies. It shows all files with changes and, clicking on a file, shows a highlighted view of the changes for that file. When you are ready to commit Diffly makes it easy to select the files you want to check-in and assemble a useful commit message.

Change Terminal.app ANSI Color on Leopard

LinkBack plugin for Apple Keynote.

Objective-C interface to geonames.org public webservice.

A port of XTide 1.62 for iPhone and iPod touch

Put address book contacts' birthdays on a Google calendar so you stop forgetting them

Continuous integration on your iPhone.

A custom NSView subclass that displays a set of stackable boxes that can be expanded and collapsed

A Sunrise and Sunset calculator for OS X that can also plot the times over a timeframe on a graph.

Hessian protocol implemented in Objective-C

A Nu and Objective-C wrapper for John Ousterhout's Tool Command Language (Tcl).

A simple Nu/Objective-C interface to MySQL databases.

Genius.app

Simple Cocoa API wrapping the pcap library

A custom NSView subclass that presents a honeycomb with selectable hexagonal cells