About

Chord Sheet Transposer (part of the ZoundChord project) reads chords directly out of a photo or screenshot of a chord sheet and rewrites every one of them into a different key — instantly, with the lyrics left untouched.

Upload an image, and the tool detects each chord by its position on the page, lets you fix anything it missed or misread, and renders the corrected sheet back out in whichever key and accidental spelling (sharps, flats, or standard pop notation) you choose.

Creating a free account lets you save a processed sheet and reopen it later — with your key, spelling, and any manual corrections exactly as you left them — instead of re-uploading and re-editing from scratch every time.

This is a free, single-purpose tool with no ads and no subscription. Questions or feedback are welcome at support@zoundchord.com.