Change audio speed online for free
Drag the slider to speed up or slow down your audio, then download it.
Downloading the engine…0%
🔒 100% private: your files never leave your deviceUp to ~100 MB
How it works
1
Upload your audio
Any common audio format.
2
Set the speed
0.5x to 2x the original.
3
Download
Your adjusted audio in MP3.
Why change an audio file's speed?
Speeding up a long recording can save time when reviewing lectures, meetings or podcasts, while slowing one down helps transcribe or learn a difficult passage. This tool changes only the speed of the audio — the pitch stays natural, it doesn't get deeper or squeakier like it would with a simple playback-speed change.
Frequently asked questions
Does changing speed affect the pitch?
No, this tool preserves the natural pitch of the audio — only the speed changes.
What format do I get back?
Your adjusted audio downloads as an MP3 file, regardless of the format you uploaded.