Free tool · Edit
Audio Speed Changer
Speed up or slow down — pitch stays natural.
Drop your audio here
or click to choose a file
MP3 · WAV · M4A · OGG · WEBM · FLAC — up to 20MB
Frequently asked questions
Does the pitch change too?
No — this uses proper time-stretching, not simple resampling, so voices stay natural at any speed instead of turning into chipmunk or slow-motion pitch shifts.
What speed range is supported?
0.25x (four times slower) to 4x (four times faster).
Is it free?
Yes, free with no account required, limited to a fair-use number of files per hour.