Guitar Chord Diagrams

A chord book gives you one fixed diagram per chord. This tool works the other way around: type a chord name and it searches the fretboard itself, the same way a guitarist scanning the neck for a fingering would, and shows you every reasonable shape it finds.

Standard tuning gives each open string a fixed pitch class — E, A, D, G, B, E. For the chord you type, the tool parses the root and quality (major, minor, sevenths, sixths, ninths, suspensions, slash-bass chords and more) into a set of required notes, then backtracks through every open, fretted, or muted choice on all six strings within a four-fret window. A voicing counts only if it sounds every required note and nothing outside the chord. If a window near the nut has no answer, the search slides up the neck, fret by fret, up to the ninth fret.

Extended chords like ninths sometimes can't fit six strings without compromise, so the search follows the same rule working guitarists use: keep the root, third and the defining upper extension, and drop the fifth first if something has to give. Every match found is scored on playability — muted strings are penalized, open strings are rewarded, and a wide finger stretch counts against it — so the shapes at the top of the list are the ones a hand would actually choose.

The diagrams themselves follow standard chord-box notation: vertical lines for strings, horizontal lines for frets, filled dots for fretted notes, O for open strings, X for muted ones, and a thick bar wherever one finger covers several strings at the same fret. Everything runs locally in your browser — nothing you type is sent anywhere.