Chord & Key Transposer
Move a chord sheet to any key, pick sharps or flats, add a capo, and see the scale and diatonic chords
How it works
Paste a chord sheet (chord lines above lyrics, or a bare progression) and step the transposition up or down, or pick the song's key and the key you want. Chord symbols — including qualities like m7, sus4, maj7(#11) and slash basses like G/B — are recognised and shifted; lyric lines are left alone unless you say otherwise. Spelling follows the original accidentals or your ♯/♭ choice. A capo setting shows the shapes to play so the result sounds in the target key, and the key cards list the scale, key signature, relative and parallel keys and the diatonic chords of both keys.
Questions
How do I transpose a song from G to A?
Choose G as the from-key and A as the to-key (or press + twice): every chord moves up two semitones, so G D Em C becomes A E F#m D.
How does the capo help?
A capo raises the pitch of open shapes. To sound in E with a capo on fret 2, play D-shapes; the tool shows the shapes for any capo position.
Sharps or flats?
By default a chord keeps its own spelling (Bb stays flat, F# stays sharp). Force ♯ or ♭ for keys that read better one way — flats for F, Bb, Eb, Ab; sharps for G, D, A, E, B.