https://chordtransposer.val.run

just enter space-separated valid chords (case insensitive) and the number of half-steps to transpose by (-11 – 11). it does not accept flat chords at the moment so you have to convert it to sharp chords first, sorry.

sometimes i just want to enter four chords and transpose it but have found no tools that simply does this so i made it myself.

i forgot how to do it the easy way using HTML and vanilla JavaScript so i did it the hard way using Hono server and everything.