STEAREL  I find SmallImage to be a better program for my needs at a much better cost (free).

SmallImage allows you to choose what metadata is erased, and it can process files without recompressing them.  
(Version 1.6.1)

STEAREL  Works as advertised... once. However, when I press "done" and enter a new string of html code and press "Tidy It!" the results shown are the same as the first entry.

For example, if I tidy up the source code from apple.com and then try to tidy up the source code from google.com, the results for apple.com shows up again.

Logging out and logging back in resets the problem to allow one successful Tidy operation.

Great idea. Keep going with it. I would also suggest a graphic interface with check boxes and drop down menus on the back side of the widget.  
(Version 1.0)

ANONYMOUS  A very nice little app that does big things. I love how streamlined the program is and how it does not mess with any system files. My first suggestion is to take out the "multiDock..." from the menu that appears when the icon is 'ctrl-clicked' in the dock. When I want to open the application in its own window, I can just 'left-click' on the icon. Another feature I would like to see is the ability to switch between docks from the menu bar. This way the user does not have to put multiDock on every single dock. The current configuration just adds more icons to the docks that the application is trying to clean up. (kinda hipocritical, eh?)  
(Version 1.5)