Transpose by semitones
One semitone is one key on a piano, and twelve make an octave. Quick picks cover the usual moves (−12, −5, −2, +2, +5 and +12), and the slider takes any whole number in between. A fresh file starts at +2, one whole tone up.
Change the pitch of a song
Move a song, a voice or an instrument up or down by whole semitones, while the tempo and the length stay exactly as they are. Your file stays yours: we never receive or store it.
or drop a file anywhere on this page
MP3, WAV, M4A, FLAC, OGG and more · the sound of a video too
Your privacy comes first
Your contracts, passport scans and family videos stay yours. No one but you gets to see them.
We never store your files
They don’t even reach us: your phone or computer does the work. Nothing to delete later.
100% free
No daily limits, no file-size cap, no paid Pro plan.
No sign-up
No account to create, no email to give. No account, nothing to hack.
How it works
- Open a fileChoose an MP3, M4A, WAV, FLAC or OGG file, or a video.
- Set the pitchMove the slider from −12 to +12 semitones and press Play.
- Save itPress Save audio. The format stays the same unless you change it.
Change the key of a song, keep the tempo
A song is too high to sing along to. A backing track is in the wrong key for your guitar. A voice should sound deeper. Each case comes down to one question: how many semitones up or down.
Hear it before you save
Play runs the sound through the same pitch shifter as the saved file, so what you hear is what you get. Tap or drag the wave to listen to any part.
Pitch apart from tempo
On an old tape deck the two are tied: faster means higher. Here they are separate. The shift is worked out by Signalsmith Stretch, an open-source library that runs on your device, and the song lasts exactly as long as before.
When you need it
- Change the pitch of a song or a backing track to suit your voice.
- Match a recording to a guitar tuned half a step down: −1.
- Practise a song in another key without learning new chords.
- Make a voice deeper or higher for a video, a game or a joke.
Formats and quality
- Opens MP3, M4A, WAV, FLAC, OGG and the sound of videos.
- Saves in the format you opened unless you pick another: MP3, M4A, WAV, FLAC or OGG.
- Voices sound most natural within 1 to 3 semitones. Music takes bigger moves, up to a full octave for a bass line or a melody.
- Want a song both slower and deeper? Use the audio speed tool with Change pitch with speed on.
Free, fast and all yours
Free forever
Every tool is free and will stay free. No trial, no ads, no paid plan.
No sign-up, no login
Open the page and start. No account, no email, no password.
Instant
Nothing to upload and no queue: a video opens in a second, a simple trim saves in seconds.
No file size limits
We set none. A file can be as big as your device can handle.
No watermarks, no copyright
No logo on top and no rights claimed: what you make is 100% yours.
Made for phones too
The same tools on iPhone, Android and a computer, with big buttons and plain words.
Questions
Yes, that is all this page does. The song keeps its tempo and its length to the millisecond; only the pitch moves.
Count the steps between the two keys: from C to D is +2, from E to C is −4. Shifting by 12 gives the same key an octave higher or lower.
Start at −2 and sing the highest line. If it still strains, try −3 or −4. A low voice goes the other way, to +2 or +3.
Yes. −2 to −5 semitones gives a deeper voice that still sounds natural. Further down it starts to sound robotic.
No, only whole semitones from −12 to +12. That is enough to change the pitch of a song into any key; fine tuning in cents is a job for a music program.
You can open a video here, but the result is an audio file with the new pitch. The picture is not saved.
No. The song never reaches our server, so we can’t keep a copy. The page is free, with no account and no file-size cap from us.