Slow Down Audio
Slow playback while preserving pitch approximately.
How to use Slow Down Audio
Slow playback while preserving pitch approximately.
Choose an audio clip that you own or have permission to edit, then check timing and output before sharing.
- Open Slow Down Audio on Tools4U.
- Upload the supported audio file.
- Adjust any settings, select Process Audio, then wait.
- Preview and download your output within 12 minutes.
Frequently asked questions
Is Slow Down Audio free?
Yes. Signed-in verified users can process short audio, and Premium members do not see advertisements.
What are the upload limits?
Up to 24 MB per file, 48 MB combined, 180 seconds per track, and 10 jobs per hour. Some effects have shorter input limits.
Where is audio processed?
The audio is processed by an isolated private FFmpeg worker. Outputs are temporary, but you should still avoid uploading confidential material without permission.