CalConverters

Pitch Shifter

Drop an audio file below, shift the pitch by up to 12 semitones either way with the speed preserved, preview live, then save as MP3 or WAV.

Files never leave your device

Drop an audio file here, click to browse, or paste

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What This Tool Does

This pitch shifter changes the key of an audio file without changing its speed — move a backing track to match your vocal range, transpose a song for a different instrument, or just hear a track in another key. Drop a file, shift by semitones, listen live, and save as MP3 or WAV.

Everything runs on your device: no upload, no queue, no account.

Transposing Made Simple

You want toShift
Sing along more comfortably±1–3 semitones
Move a song between keys (e.g. C → E)+4 semitones
Drop a track a full octave−12 semitones
Tip: If a song is just slightly out of your vocal range, try ±1 or ±2 semitones first — small shifts stay the most natural, and they're usually all a singer needs.

Live Preview, Exact Export

Press Play and move the slider — the key changes instantly, mid-playback, with the tempo pinned. The export renders through the identical engine with the same semitone setting, so the saved file matches what you tuned by ear.

Your Audio Never Leaves Your Device

The decoder is the browser's own; the pitch engine and the MP3 encoder are small WebAssembly/worklet builds that run locally. Close the tab and nothing remains.

Frequently asked questions

Is this pitch shifter free?
Yes. No sign-up, no watermark, no limits. Everything runs inside your browser, so there is nothing to pay for.
Does my audio get uploaded?
No. Decoding, the live preview, and the final render all happen locally in your browser. Your file never leaves your device.
Does changing the pitch change the speed?
No. The engine shifts the key while keeping the tempo exactly the same, so a 3-minute song stays 3 minutes long at any pitch.
How far can I shift the pitch?
Up to 12 semitones (one full octave) up or down, in whole-semitone steps — enough to transpose to any key.
What is a semitone?
The smallest step in Western music — the distance between two adjacent piano keys. Two semitones make a whole tone; twelve make an octave.
Will a big shift sound natural?
Shifts of a few semitones sound clean. Beyond about 5–7 semitones, any pitch shifter starts to color the sound — fine for practice and fun, less ideal for production.
Can I hear the new key before saving?
Yes — press Play and move the slider while listening; the key changes instantly, and the export uses the same engine you just heard.
Can I combine pitch with other edits?
Yes. The same editor has Trim, Volume, Equalizer, and Speed tabs — every active effect is applied together in one export.