MAME OS X is a native Mac OS X port of MAME, designed to take full advantage of OS X-specific optimizations.
Simple CoreData-based accounting software
Originally written to play with CoreData, this eventually grew into an accounting app with the ability to track personal finances, etc.
A Cocoa utility application to display information about the clients of Apple Airport Extreme & Express Base stations
Alea is an open-source Macintosh application for creating computer games, and in particular graphical adventure games along the lines of Myst, King's Quest and The Secret of Monkey Island.
This is a QuickLook plugin for MacOS-X 10.5/10.6 that allows QuickLook preview of Animated GIFs. The current GIF support in the Finder doesn't show animations. This plugin extends the Finder to allow QuickLook to display the GIF in its animated form.
Arachnicord will validate the html of an entire website, display all of the errors and highlight where these errors are located in your HTML source.
Books is a native Cocoa application for Mac OS X that stores, sorts, and searches book collection information. Books is intended to assist book collectors with managing personal collections.
BoomBot is a developer's framework for writing a bot connecting to the AIM network. It manages the network communication for the bots so that they can be easily written without worrying about AIM itself at all. Bots can be written in Objective-C or Lua.
Caddress will be an Open Source Cross-Platform Calendar and Address Book with native sync support. It is configurable through predefined profiles, and supports add-ons.
Game Creation Society at Carnegie Mellon University: Approximately 50 programmers, game designers, and artists working together at CMU will create a variety of games, and make them available with variety of OS Licenses through SourceForge.
A download accelerator for Mac OSX 10.5+. Built using Objective-C and Cocoa, this app has the objective of being a simple, fast and unobtrusive download manager and accelerator. BTW: CelerPeal is just a code name resulting from Celer + Peal (Latin)
ClickDrag is a plugin that emulates popular X11 window manager options by moving any Cocoa window by holding option and clicking and dragging anywhere in the window as well as resizing by option right-clicking.
Preference pane for Clover bootloader
Preference pane for Clover bootloader: http://sourceforge.net/projects/cloverefiboot/
A paint estimator written using the Cocoa Framework and written in Objective C.
A free (as in beer) OpenSSL GUI for encrypting, decrypting and compressing files and folders, using the AES256 cipher in "salted" CBC Mode. Made for Mac OS X 10.5 (or later) Intel or PPC.
Dmud is a Mud client for mac programmed in Cocoa it will support MCCP MSP MXP, and features like Automapper, scripting languages (python,lua ...), triggers, alias and macros.
Volocian believes first and foremost that financial status shouldn’t be a barrier to entry in multimedia content creation. Whether you want to design a product or website, record a band, remix a song, or produce a feature length movie with professional post production graphics and effects, Volocian™ wants to help, even if you’re using borrowed hardware with no previous experience. We provide affordable products and services for any budget, including cost-free solutions for education and demo purposes, while everything we do is designed with ease of use and flexibility in mind, to suit everyone from novice hobbyists to expert professionals. Wherever possible, Volocian™ relies on free, open source, and cross-platform software to prevent vendor lock-in, planned obsolescence, and software as a service licensing. While we remain pragmatic about the use of proprietary software, as we’re aware of the feature limitations of some open source solutions, free solutions are preferred.
Straightforward OCR for Mac to create searchable PDFs.
Elucidate is now available on the Mac App Store: https://itunes.apple.com/us/app/elucidate/id1066088407?ls=1&mt=12
FYL is a Mac OS X application that lets you to change the wallpaper login.
Stop Spam - Fight back! Protect your own email address ard/or generate lists of fake email adresses for easy distribution on websites, weblogs or in newsgroups. This way we will pollute the spammers email-databases with a lot of trash...
Glutmaster is a set of platform-independent classes that wrap GLUT in a C++ object model.
Greasekelly adds Greasemonkey-like user scripting for all WebKit applications.
Guaco is an attempt at a new software programming paradigm for Mac OS X and Cocoa.
Macintosh application for uploading and downloading software and files to the new USB-based HP calculators, such as the HP49G+.