Fade In and Out
Ease a track in at the start and out at the end instead of cutting dead.
- Add
- Adjust
- Make
- Keep
How to use this tool
- Add your files — drag them onto the page or choose them. They stay on your device.
- Set Fade in and Fade out in seconds — two seconds each suits most tracks; zero leaves that end untouched.
- The duration is measured from the file itself, so the fade-out always lands on the real ending.
- Press “Add fades” and download the results, individually or as one ZIP.
About this tool
Ease a track in at the start and out at the end instead of cutting dead. Free and unlimited, and nothing is uploaded: it all runs in your own browser. Everything is analysed and produced on your own device — nothing is uploaded anywhere, and you can verify it: the tools keep working even offline.
Privacy & limitations
Multi-hundred-megabyte recordings can exhaust the browser's memory — everything runs on your machine, so your machine is the limit. Fades re-encode the audio once; a WAV input saved back to WAV stays lossless, but a lossy-to-lossy pass stacks generations.
Last updated:
Frequently asked questions
How long should a fade be?
One to two seconds at each end suits most speech and music. Longer suits ambient recordings; shorter than half a second is close enough to a hard cut that you may as well not bother.
Can I fade only one end?
Yes. Set the other to zero and it is left alone.
Does this re-encode the file?
Yes, because the samples themselves are being changed. The output is written at a good quality, though a heavily compressed source cannot be improved by passing through it.