Change the pitch of any song up or down by semitones with this free online pitch shifter — without changing the tempo. Upload a track, set the shift, preview, and export a WAV. Everything runs in your browser; nothing is uploaded and there’s no signup.
Pitch Shifter
Shift the pitch of any song up or down by semitones — without changing the tempo. Upload a track, set the shift, preview, then export a WAV. Everything runs in your browser; nothing is uploaded.
This uses a phase-vocoder engine to move the pitch while keeping the length the same — ideal for matching a song to your vocal range, transposing a backing track, or fixing a track recorded at the wrong pitch. Larger shifts (near an octave) may add mild artefacts, as with any pitch shifter. Long songs take a few seconds to process.
How to change the pitch of a song
- Upload your track — MP3, WAV, M4A, OGG or FLAC, processed on your device.
- Set the shift — drag the slider or tap a preset (up or down to an octave). The slider moves in fine 0.1-semitone (10-cent) steps for precise tuning.
- Preview — press play; the shift is applied and the tempo stays exactly the same.
- Export — click Download WAV to save the pitch-shifted version.
Pitch shift vs. speed change
A speed changer moves pitch and tempo together (like a record played faster). This pitch shifter uses a phase-vocoder engine to move only the pitch, keeping the length and timing intact — so a backing track stays in time while it moves to a new key.
Fine-tune in cents
The slider moves in 0.1-semitone (10-cent) steps, so you’re not limited to whole semitones. Nudge a track a few cents to match the tuning of another recording, correct an instrument that drifted slightly sharp or flat, or line a sample up to a reference pitch. The presets jump by exact semitones for quick transposition; for everything in between, drag the slider slowly.
What you can use it for
- Match your vocal range — drop or raise a song a few semitones so it sits comfortably for singing or covering.
- Transpose a backing track — move an instrumental to a new key without re-recording.
- Fix a mistuned recording — nudge a track that was captured slightly sharp or flat.
- Creative effects — shift a sample up or down an octave for texture.
Free and private
All processing happens locally with the Web Audio API and a built-in pitch-shift engine — your file never leaves your browser, there’s no signup, and the WAV export has no watermark. Making your own music? Generate original AI songs with Solmi, then transpose them here.
Frequently asked questions
Does this change the tempo?
No. The pitch shifter keeps the length and timing exactly the same and moves only the pitch. If you want to change speed too, use the Audio Speed Changer.
How many semitones can I shift?
Up or down a full octave (12 semitones each way). Smaller shifts sound the most natural; large shifts near an octave can add mild artefacts, as with any pitch shifter.
Can I shift by less than a semitone?
Yes. The slider steps in tenths of a semitone (10 cents), so you can fine-tune by a few cents to match another track’s tuning or fix a slightly off-pitch recording.
Does it upload my audio?
No. Everything runs in your browser; your file never leaves your device.
Why does it take a few seconds?
High-quality pitch shifting is computed on your device. Short clips are near-instant; a full-length song takes a few seconds to process.
What audio formats are supported?
Any format your browser can decode — MP3, WAV, M4A/AAC, OGG and FLAC. The export is a WAV.
Is it really free?
Completely — no signup, no watermark and no limits.