Change the Key of a Song (Pitch Changer)
Change the key of a song, keep the speed.
Shift any song up or down by up to 12 semitones without changing its tempo. Free, in your browser.
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How it works
Choose the song
Use the free Pitch Changer on this page with an MP3, WAV, M4A or video file.
Pick the new key
Move the slider: negative numbers lower the song, positive numbers raise it. One step is one semitone.
Change it and download
Press Change the key, listen, then download MP3 or WAV.
About the Change the Key of a Song (Pitch Changer)
Completely free: free account, no credits, no limit. It runs in your browser, so your audio stays on your device.
The Pitch & Key Changer moves a whole song up or down in key, from one semitone to a full octave, while keeping its original speed. It is how singers lower a song to fit their voice and how musicians match a recording to a tuned-down instrument.
It works in two steps on your device: the audio is time-stretched with overlapping windows (WSOLA), then played back at the new rate, which changes the pitch and brings the length back to the original.
Small changes of one to four semitones sound most natural. Bigger shifts work, but voices start to sound unnatural, as with any pitch shifter.
What you can use it for
- ✓Lower a song to suit your vocal range for karaoke or covers
- ✓Match a recording to a guitar tuned half a step down
- ✓Practise a song in a different key
- ✓Create a pitched-up or pitched-down version for an edit
Step-by-step guide: How to Change the Key of a Song Without Changing the Speed
Frequently asked questions
How many semitones should I lower a song?
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Each semitone is one fret on a guitar. If the high notes are a little out of reach, try −2; for a big difference, such as a male singer covering a female singer, try −4 to −5.
Does it change the speed?
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No. The tempo and length stay the same; only the key changes.
Will it sound like the original?
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Shifts of a few semitones sound natural on most music. Large shifts can make voices sound thin or deep and add a slight phasing.
What do I get?
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An MP3 (192 kbps) or a WAV file, whichever you choose, ready to download straight away.
Is it really free?
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Yes. It is completely free, with a free account: no limit and no watermark. It runs in your browser, so your audio stays on your device.