Pitch Shifter

Move a track up or down in pitch for key changes, demos, or creative edits — processed locally in your browser.

Drop an audio file here

or click to choose from your computer

MP3 · WAV · FLAC · AAC · M4A · OGG

✓ Local processing in your browser · Files are not uploaded to our servers

What is the Pitch Shifter?

The Pitch Shifter changes the perceived key of a recording. Typical uses include trying a higher key for a cover, dropping a vocal slightly, or matching another take.

This version uses a practical browser approach: rate-based shift with length compensation where possible. For studio-grade independent time/pitch, a full DAW still wins — here the goal is a quick, private edit.

You work in semitones (−12 to +12). That maps cleanly to musical intervals: a whole step, a perfect fourth, a perfect fifth, or a full octave. Quick-jump buttons set common intervals so you do not have to count steps by hand.

With Preserve tempo on, the tool aims to keep the original duration while only the pitch moves — useful for karaoke, practice tracks, and key matching. Turn it off for the classic “tape speed” effect where pitch and speed change together.

After export you can convert the WAV result with the Audio Converter if you need MP3 or another format. Everything runs in your browser; files are not uploaded to Sound Booster servers.

How it works

Add a file

Choose an audio file in MP3, WAV, FLAC, AAC, M4A, or OGG format. The file is decoded in your browser so you can work without uploading it to a server.

Choose pitch

Move the pitch in semitone steps from −12 to +12. Use the quick interval buttons for common musical changes, then preview the result before exporting.

Export

When the pitch sounds right, export the processed audio as WAV. If you need MP3 or another format, send the result to the Audio Converter.

Pitch shifting tips

Pitch shifting is useful when a recording is close to the key you need but not quite there. For example, singers can raise or lower a backing track to match their comfortable range, musicians can move a practice track into another key, and creators can make quick vocal or sound-design variations.

Small changes usually sound more natural than extreme ones. A few semitones can be enough for key matching, while larger shifts may introduce audible artifacts depending on the source recording. Clean, well-recorded audio generally gives better results.

The Preserve tempo option is useful when you want the recording to keep approximately the same duration while the pitch changes. Turn it off when you want the traditional tape-style effect, where changing pitch also changes playback speed.

Frequently asked questions

Is this the same as speed change?

Related, but the control is framed in semitones for musical adjustments. Extreme shifts can sound artificial.

Do files upload?

No. Processing is designed to run on your device.

Do my files leave this device?

No. Core processing is designed to run locally in the browser. We do not upload your audio to Sound Booster for this tool.

Is this tool free?

Yes. No account is required to use it in the browser.

Related tools

Keep editing with other browser-based tools on Sound Booster.