You're fooling around trying to find chords that work in a songsheet and all of a sudden you land on something that sounds great, but you have no idea what the chord name is. Now you can find it easily by going to the Ukebuddy website - it's a neat find from Harry Curtis! You can also find different inversions of a chord, scales, arpeggios, even tune your uke at this link:
Chord Namer
What’s the name of that ukulele chord? Just select the notes of the chord on the ukulele fretboard and we’ll find matching chord and key patterns.
And here's another site that shows chord inversions, voicings, names:
Ukulele Voicings
Find all ukulele voicings for a specific chord.
