Open Source Objective C Desktop Environment Software

The AbiWord word processor is a full-featured cross-platform word processor.

Midi Sheet Music is a free program that plays MIDI music files while highlighting the piano notes and sheet music notes. Works on Windows, Mac OS X, and Ubuntu Linux.

This is a tool for powerful automation of OS X. At its core, Hammerspoon is just a bridge between the operating system and a Lua scripting engine. What gives Hammerspoon its power is a set of extensions that expose specific pieces of system functionality, to the user. You can write Lua code that interacts with OS X APIs for applications, windows, mouse pointers, filesystem objects, audio devices, batteries, screens, low-level keyboard/mouse events, clipboards, location services, wifi, and more. Typically you would write a configuration file in Lua that connects events to actions. You might want to bind a keyboard shortcut to a series of window operations, or an applescript. You might want to run a series of commands when your wifi interface connects to your home network. You might want to display an alert when your battery drops below a certain percentage. You might want to do something crazy like have iTunes automatically start playing when your Mac detects you are in Paris.

TkDND is an extension that adds native drag & drop capabilities to the Tk toolkit. It can be used with any Tk version equal or greater to 8.3.3 and currently only the UNIX (X-Windows), Microsoft Windows (XP, Vista, 7) and OS X (Leopard) operating systems. Please note that sources have been moved to: https://github.com/petasis/tkdnd

Lunar is a macOS-focused application designed to improve control over external monitors by intelligently adjusting brightness and other display settings. Instead of applying a software brightness overlay, it directly communicates with compatible displays using the DDC/CI hardware protocol, offering true hardware-level brightness adjustments when supported. Lunar doesn’t just adjust brightness. It intelligently adapts to environmental conditions by using external or built-in ambient light sensors and location-based cues like sunrise and sunset times. Users can fine-tune many aspects of their displays, including volume, contrast, screen orientation, and input switching, all through native macOS interfaces or customizable hotkeys. The tool also includes advanced features such as dimming below 0% for low-light conditions and blackout controls that power off screens without disrupting connected hardware.

Chameleon is a lightweight, yet powerful, color framework for iOS (Objective-C & Swift). It is built on the idea that software applications should function effortlessly while simultaneously maintaining their beautiful interfaces. With Chameleon, you can easily stop tinkering with RGB values, wasting hours figuring out the right color combinations to use in your app, and worrying about whether your text will be readable on the various background colors of your app. With a plethora of color choices available for text, it's difficult to choose one that all users will appreciate and be able to read. Whether you're in doubt of your text and tint color choices, or afraid to let users customize their profile colors because it may disturb the legibility or usability of the app, you no longer have to worry. With Chameleon, you can ensure that all text stands out independent of the background color.

NextSpace is an open-source desktop environment that brings the look and feel of the classic NeXTSTEP UI to modern Linux systems. It aims to provide a retro yet functional workspace for users who appreciate NeXTSTEP’s design.

Build system and integration libraries allows automatic building of GTK+-2 & 3 applications on OSX using the native Quartz display system, the Mac menubar, and familiar key bindings. This project is now part of Gnome, see https://wiki.gnome.org/action/show/Projects/GTK+/OSX for more information.

A minimalist application to provide clipboard buffering for OS X.

Virtue is a virtual desktop manager for MacOS 10.4. It is based upon the work done by Rich Wareham on DesktopManager (http://desktopmanager.berlios.de/).

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.

Nightingale is a community created fork of the Songbird media player. It is developed by a proud community and we are equally proud to bring you the most extensible, feature-rich media experience on Windows, Mac, and Linux. See the official website at http://getnightingale.com for the source, builds, and information. On Sourceforge, we provide our releases, the binary deps for building, as well as builds for testing purposes.

Eloquent is a powerful Bible study tool for Mac OS X, supporting features such as services, to access the Bible in any program. It uses the Sword Library to work with bible texts, commentaries, dictionaries.

smooth is an object oriented class library for Win32 and Linux written in C++. It's meant to become an alternative to toolkits like Qt.

GNUstep AppWrapper AppWrapper is a GNUstep application meant to aid in the creation of non GNUstep application wrappers for use by GWorkspace and other tools that open GNUstep applications.

Baculator is a Reverse Polish Notation (RPN) calculator program with an infinite scrollable stack and support for most common mathematical operations as well as some more esoteric operations. Available for Unix/Gtk+, Mac OS X, and MS Windows.

Handles GetURL apple events, like a mail client would handle a mailto link, by delegating them to the mutt mail client, using AppleScript and Terminal.app. Both the developers are viewing this mostly as a learning experience, so you are welcome to join.

Angel is a screen saver that shows images available from ZeroConf network (Bonjour). Daemon is an image server that can capture whole screen image automatically.

AppLaunch is a MacOS X tool written in Objective-C/Cocoa to launch common Unix and MacOS commands using a "graphical command line". You can say that it is the MacOS X version of Windows', KDEs, ... "Run"/"Launch" dialog.

ChangeDesktop is an application that will change your Desktop picture at random from any number of folders you choose. It is written in Cocoa, completely free and the source code is available.

Screensaver module for Mac OS X Leopard that displays an analog clock.

Clonch is an alternative to the Dock for launching applications.

Small Mac OS X app that puts CD covers on your desktop, as a way to choose music to play or just enjoy the cover art. Drag wherever you want, double-click to play. Artwork is fetched from Amazon or can be pasted in manually, and can be exported to iTunes

Panelized file manager for Mac OS X

Crikey! is a Cocoa IRC Client for Mac OS X