Use the free Chord Chart Transposer below: your data never leaves your browser — all work happens on your device, and nothing is uploaded to any server.
Your singer needs it lower. Your guitarist needs it higher. Now what?
Every band has lived this moment. The song is rehearsed, everyone knows their part, and then the singer says the key is too high, or the guitarist realises the song sits awkwardly under their fingers. Someone has to rewrite every chord in the chart, and doing it by hand means working through dozens of chords one at a time, with a real chance of missing one. This chord chart transposer does the whole job in one click. Paste the chart, choose how many semitones to move it, and every chord shifts by exactly that amount, with correct spelling, including slash chords such as G/B and qualities such as m7, maj7, and sus4.
The tool understands the way real chord charts look. Charts mix chord lines with lyric lines, section labels like Verse and Chorus in brackets, and bar lines, and the transposer leaves all of that untouched. It only changes the chord symbols themselves, so the chart that comes out still reads like the chart that went in, just in the new key. That matters more than it sounds: a tool that scrambles your lyrics or eats your section labels is worse than useless in a rehearsal, because you spend the time you saved on cleaning up the damage.
Sharps or flats? The tool lets you choose
Moving chords up or down by semitones creates a spelling question. Move F sharp up one semitone and you could call the result G, which is obvious, but move A sharp up one semitone and the answer could be spelled B, which is the only sensible choice. Trickier cases appear with flat keys: move E flat down one semitone and you get D, but move B flat down two semitones and you land on A flat, not G sharp, if you prefer flats. The transposer has a sharps-or-flats preference for exactly this reason. Guitarists playing in sharp keys usually prefer sharps, while horn players and jazz musicians reading flat keys usually prefer flats, and the same transposition can look wrong to one group and right to the other.
The rule the tool follows is simple and honest: it spells every transposed note using your preferred set, so the output is consistent from the first chord to the last. Consistency is what makes a transposed chart readable at a glance. A chart that mixes G sharp in one bar and A flat in the next, even though they are the same pitch, forces the reader to stop and translate, and stopping mid-song is exactly what a chart is supposed to prevent.
The chord lookup is a second tool in disguise
Below the transposer sits a chord chart lookup. Pick a root note and a chord type, and it shows the notes in that chord. This is useful in the moment when a transposed chart hands you a chord you have never played: transpose a song into E flat, meet an A flat minor 7, and check its notes before the rehearsal instead of guessing during it. It is also useful for songwriters, because seeing the notes of a chord helps you choose a melody note that fits, or a bass note that leads smoothly into the next chord.
Use the lookup as a study tool too. Transpose the same progression into three different keys, look up one unfamiliar chord from each version, and notice how the same chord quality keeps the same shape of intervals no matter which root it starts on. That shape is the real knowledge, and once you see it, transposing by hand becomes easier as well, because you understand what the tool is doing instead of treating it as magic.
Practical tips for real rehearsals
Transpose in small steps first. Moving a song by one or two semitones usually solves a vocal problem without pushing the guitar part into an awkward key, while a jump of five or six semitones can turn easy open chords into barre-chord marathons. If the new key is full of barre chords, try moving the other direction instead: down three semitones often gives a similar vocal result with friendlier guitar shapes. Always print or save the transposed chart before the rehearsal, and keep the original too, because the singer may change their mind after hearing the new key once. The tool is free and runs in your browser, so generating both versions costs nothing, and nothing you paste is uploaded anywhere.