A bunch of PDF fretboard diagrams I find useful, constructed with this fretboard diagram creator.
Ukulele
- CAGFD by type (see article CAGFD: CAGED for ukulele)
- CAGFD by shape
- Diatonic chord boxes (see article Position playing on ukulele)
- Moveable triads on ukulele (see article Three essential moveable chord shapes)
Guitar