Does the pitch change along with the speed?

Yes — this changes speed by resampling, the same mechanism as a media player’s playback-rate control, so pitch rises when you speed up and drops when you slow down. It does not do pitch-preserving time-stretching.

Does this tool upload my audio anywhere?

No — resampling happens entirely in your browser.

Change Audio Speed

Speed up or slow down an audio file.

Choose an audio file

Files never leave your device — this runs entirely in your browser. Output is WAV.

Related tools

Trim Audio
Audio Fade In / Fade Out
Audio Volume Adjuster
Mono ↔ Stereo Converter

How it works

1
Choose an audio file

Up to 100 MB.
2
Set a speed multiplier

e.g. 1.5× for faster, 0.75× for slower.
3
Download the result

Re-encoded as WAV at the new speed.

FAQ

Does the pitch change along with the speed?: Yes — this changes speed by resampling, the same mechanism as a media player’s playback-rate control, so pitch rises when you speed up and drops when you slow down. It does not do pitch-preserving time-stretching.
What speed range is supported?: 0.1× to 4×.
Does this tool upload my audio anywhere?: No — resampling happens entirely in your browser.