Change Audio Speed
Speed up or slow down audio — the pitch stays natural.
Drop a file here or click to choose Tap to choose
MP3, WAV, FLAC, M4A, OGG
On phones this downloads a ~30 MB engine on first use and can be slow or run out of memory on large files. Smaller files work best on mobile.
file
Preview (plays at the selected speed)
Free Online Audio Speed Changer
Make a track faster or slower while keeping voices and instruments sounding natural. Speeding audio up is great for lectures, audiobooks and podcasts; slowing it down helps with transcription, learning an instrument or studying lyrics. Because the pitch is preserved, nothing sounds chipmunky or sluggish.
Processing happens in your browser, so your audio is never uploaded.
How it works
Drop your file
Choose any audio file. It's processed locally and never uploaded.
Set the speed
Drag the slider from 0.5× (half speed) to 3× (triple speed), or use a preset — and preview it live.
Apply & download
Click the button and download your speed-adjusted MP3.