the next best thing to that (that i know is available and free) are visual chord dictionaries that tell you exactly what chord you're playing when you input the fret numbers. other than that, how about just tackling some theory and learn your chord/key relationships? even bebop jazz has reason to the rhyme, if you know what i mean.

just google "guitar chord dictionary" and you'll find one that you can use easily enough; the theory can be just as simple to find on the net. good luck!