CAD Technology Center has recently made it Revit Family Tools free.
According to their web page "The Revit Family Tools allow for easy Revit file management. This program has tools for comparing and merging shared parameters, deleting backup files, type catalog tools, and a family file version detector. Download it all now- free of charge!"
Sounds exciting.... well at least there is something in there that will make your life easier, and the no cost thing goes a long way these days.