Practice tool to quickly make fretboard diagrams for any kind of fretted instrument. Simply adjust the number of desired strings and frets for the diagram and then click 'Add Chord'. After this you can click on a string to add a marker to each fret (or even the open strings). You can also fill out the number box on the left to indicate the strting fret. Finally, you can fill out the name of each chord and give the song a title before clicking the print button to print out your sheet of fretboard diagrams (or also save as a PDF).

If you are having trouble with the app try using the full version at this link here.