Key and tone
Free Online Audio Pitch Changer
Transpose vocals, loops, instruments, and sound effects up or down while keeping the clip length steady. The pitch shift runs in your browser with FFmpeg, so private source files stay local.
Useful for demo vocals, unreleased beats, and private practice takes because the source file stays on your device.
Uses FFmpeg rate and tempo filters to shift pitch while keeping duration stable.
A fast way to audition harmony ideas, sound design variations, and alternate keys without opening a DAW.
Drag & drop audio here, or click to upload
Supports MP3, WAV, M4A, FLAC, OGG, AAC, and more
How to change audio pitch online
- 1.Upload an audio file and let the browser read its sample rate and duration.
- 2.Choose a positive or negative semitone value depending on whether you want a higher or lower result.
- 3.Export the processed file as MP3 or WAV, preview it, and download the shifted version.
Why use this pitch changer?
Transpose without manual time edits
Shift a clip into a new key while keeping the overall playback length close to the original take.
Useful for vocals, loops, and FX
Try alternate harmony notes, repitch sample packs, or make creature and transition sounds quickly.
Private browser workflow
The FFmpeg pipeline stays on your device, which is useful for unreleased material and private practice recordings.
Fast creative iteration
Preview several semitone jumps in one session without bouncing between heavier desktop tools.
Common use cases
- •Move a vocal demo to a more comfortable key before rehearsal.
- •Transpose loops and one-shots to fit a session without opening a DAW.
- •Create higher or darker versions of sound effects for game and video work.
- •Prepare alternate-key references for clients and collaborators.
Tips for better pitch edits
- •Moderate shifts such as plus or minus 2 to 5 semitones usually sound cleaner than extreme octave moves.
- •Full stereo mixes tend to reveal artifacts sooner than single instruments or voice recordings.
- •Export WAV if you want to chain more effects after the pitch shift.
Pitch changer FAQ
Does this change playback speed too?
The tool compensates for the timing change, so the result stays close to the original duration instead of simply playing faster or slower.
What pitch range is supported?
This page supports shifts from minus 12 to plus 12 semitones, which covers a full octave in either direction.
Can I use it for vocals and instruments?
Yes. It works for vocals, instruments, loops, and many sound effects, although complex full mixes can show artifacts sooner than simpler material.
When should I export WAV instead of MP3?
Choose WAV if you will keep editing, layering, or converting again afterward. MP3 is better for quick sharing and review.