Speed up audio
Change how fast audio plays without changing the pitch.
How to use it
- Add your file. Drop it on the box above or tap it to pick it from your device.
- Choose and run. Set the speed (1.5 = 50% faster, 0.75 = 25% slower), then drop the file.
- Download. Press Download. Nothing was uploaded, so nothing is stored anywhere.
What it does
The audio is time-stretched, so voices keep their pitch instead of sounding like chipmunks or giants.
When to use it
Getting through lectures, audiobooks and voice notes faster.
Private by design
Most online tools upload your file to their servers. This one doesn't: it loads into your browser and does the work on your own phone or computer, so your files never leave it.
Questions
Is this speed up audio free?
Yes, completely free, with no account, no watermark and no daily limit.
Are my files uploaded?
No. Everything happens inside your browser on your own device. Nothing is sent to us or anyone else.
Does it work on iPhone and Android?
Yes, in Safari, Chrome and other modern browsers.