This is where we release the small tools we make that could be used by many others...

SpriteMapper is a Java program which creates sprite maps (or sprite sheets) from a set of input images.

Similar programs include Zwoptex and TexturePacker which unfortunately are not open sourced.

It supports rotation, trimming, Zwoptex 2 plist format (in time others too) and (again in time) many different layout algorithms and heuristics plus it contains an Ant task . Patches are welcome :-)

Documentation included in the archive but here is an example sprite map.
Example spritmap

[ICO]NameLast modifiedSizeDescription

[DIR]Parent Directory  -  
[   ]SpriteMapper-20110708.tar.bz208-Jul-2011 14:11 1.8M 
[   ]SpriteMapper-20110928.tar.bz228-Sep-2011 17:29 1.8M 
[   ]SpriteMapper-20130828.tar.bz228-Aug-2013 12:40 1.8M 
[   ]SpriteMapper.tar.bz228-Aug-2013 12:40 1.8M 
[TXT]doc.html07-Jul-2011 15:31 10K