About the Audio Speed Changer
Slow a song down to learn it, speed up a long voice note, or create your own edits. This changes speed and pitch together (like a record player), which is also how slowed and sped-up music edits are made.
How to change the speed of an audio file
- Add an audio or video file.
- Set the speed and optional reverb.
- Download the result.
Features
- 50% to 200%Fine control.
- Optional reverbFor music edits.
- Video audioMP4 soundtracks too.
- PrivateNo upload.
Frequently asked questions
Can I change speed without changing pitch?
Not with this tool yet: it changes both together, the classic 'record player' effect.
Is the Audio Speed Changer free?
Yes. The Audio Speed Changer is completely free with no sign-up, no watermarks, no daily limits and no premium tier.
Are my files uploaded to a server?
No. FileStripe processes your files locally in your web browser using JavaScript. Nothing is uploaded, so the Audio Speed Changer is safe for private photos and confidential documents and even works offline once the page has loaded.
Does it work on iPhone and Android?
Yes. The Audio Speed Changer works in Safari, Chrome, Firefox, Edge and Samsung Internet on phones, tablets and computers. On a phone you can pick files from your photo library or files app and share the result straight to another app.
Last updated · Processing happens locally in your browser.