midi editor

Jaxe, your XML editor.

iTexMac is a teTeX front end, text editor dedicated to TeX, and a PDF viewer.

Taggerwocky is an easy to use tag editor for MP3 audio files.

The LCedit+ lighting editor is the human interface and supervisory program.

TextForge is a text editor for Mac OS X

iText is a cute and fast, yet reliable text editor

0xED is a native OS X hex editor based on the Cocoa framework.

Improved version of classic UNIX editor.