Audio Pitch Changer

Change the pitch of a song or voice by up to ±12 semitones without changing its speed — save as MP3 or WAV.

How do I change the pitch of a song without changing its speed?

Upload an audio or video file, choose how many semitones to shift (for example +2 to sing in a higher key or −12 for one octave down) with optional fine-tuning in cents, and the tool time-stretches and resamples the audio in your browser so the pitch changes but the tempo stays the same.

Uses

Transpose a backing track to suit your vocal range.
Match a recording to an instrument tuned differently.
Fix tapes or recordings that play slightly sharp or flat (use cents).

Shifts of 1–4 semitones sound most natural; large shifts make voices sound like chipmunks or giants.

Frequently asked questions

Is my file uploaded?

No, it is processed in your browser.

What formats work?

MP3, WAV, M4A, OGG and the audio track of MP4/WebM videos.

How long can the file be?

Up to 15 minutes.