What this tool changes
Shift pitched notes up or down while preserving timing, controllers, tempo events, and other MIDI data. Drum channel 10 is excluded unless you choose otherwise.
Key change tool
Transpose MIDI online
Shift pitched notes up or down while preserving timing, controllers, tempo events, and other MIDI data. Drum channel 10 is excluded unless you choose otherwise.
Open this transpose MIDI tool
The interactive tool loads with JavaScript. MIDI parsing, editing, preview, undo, and download then run locally in your browser.
Load interactive toolWhat stays in the file
Events outside the selected operation remain in the low-level MIDI timeline. An untouched download returns the exact source bytes.
Supported files
Use an SMF Type 0 or Type 1 file with PPQ timing, up to 5 MB and 20,000 events.