move a recording up or down by semitones, keep its length. spectral rendering happens in your browser — your audio is never uploaded, and the WAV is written on your machine.
step 1
Drop your audio
drag a file here
WAV, AIFF, FLAC or MP3 · decoded in-memory on your machine
step 2
Set the shift
0 semitones
±12 semitones. duration is untouched — this is a shift, not a speed change.