Pitch Shifter

Change the key of a song or backing track without changing its speed. Your file never leaves your device.

Choose or drop an audio file MP3, WAV, M4A, OGG… The file stays on your device — nothing is uploaded.

Key (semitones)

1 semitone = one fret on a guitar. Most singers only need −3 to +3.

Original key (optional)

Speed: 100%

Slows down or speeds up without changing the key.

Change the key of a song for your voice

Lower the key (negative semitones) if the chorus is too high for you; raise it if the verses feel too low.
Male and female voices usually sit about 4–5 semitones apart, which is why karaoke tracks come in “male key” and “female key” versions.
Shifting more than about 4 semitones starts to sound unnatural, especially on vocals. Instrumental backing tracks shift more cleanly.
Only process audio you have the right to use. The tool does not keep or share your files.

1Open an audio file (MP3, WAV, M4A…). It is processed in your browser and never uploaded.
2Move the key up or down in semitones and listen; change the speed if you need it slower.
3Download the result as a WAV file.

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