Speed up or slow down audio
Change the speed of an audio file without changing its pitch (0.5× to 2×).
How to use it
- Add your file or enter your values.
- Adjust the options if needed.
- Run it: the result appears at once and stays on your device.
FAQ
What is Speed up or slow down audio for?
Change the speed of an audio file without changing its pitch (0.5× to 2×).
How do I use Speed up or slow down audio?
1. Add your file or enter your values. 2. Adjust the options if needed. 3. Run it: the result appears at once and stays on your device.
Does Speed up or slow down audio change the file's quality?
Depending on the quality level, lossy compression can slightly reduce quality.
Are my files uploaded to a server?
No, everything runs locally, your files never leave your device.
Is Speed up or slow down audio free and unlimited?
Yes, no signup, no usage limit.
Which browsers are supported?
All modern browsers, on desktop and mobile.
Is Speed up or slow down audio fast, even with large files?
Processing happens on your own device: speed depends on its power and the file size (a few minutes for a long video).
Does Speed up or slow down audio work offline?
After a first visit, most tools keep working without a connection.