Read, write and edit metadata
GTK+ comic book viewer.
Cross Platform GUI Toolkit
Prepress image viewer and converter
Aramacao is a lip syncing application for Linux
Program for manipulating with mind maps
MP4Tools is a collection of free tools to manipulate MP4 files
A full featured cross-platform image library
nomacs is a fast and small image viewer
utility to split mp3, ogg vorbis and FLAC files without decoding
ncurses based mpd client with vi like key bindings
Converts image files from one format to another format
Very Powerfull Crossplatform Qt Based Music Note Editor[Still Planing]