Trim Audio
Cut a section out of an audio file, with a fade in or out if you want one.
Free No signup Runs in your browser — nothing uploaded
What it does
Trim Audio reads the whole document before doing anything, so what comes back is either valid output or a specific error with the position that caused it — not a partially rewritten file.
When you need it
Usually when something has already gone wrong: a config file an application will not load, an API response that has to be read by a human, or an export that has to be checked before it goes anywhere near a database.
Limits and caveats
Key order is preserved as it appears in the input. Very large documents are limited by your device's memory rather than by an upload cap, since the parsing happens locally. Everything happens in your browser, so the file never leaves your device.
How to trim audio
- Drop or choose your MP3 file.
- KIVO processes it instantly — no waiting for uploads.
- Download the result. That's it.
Frequently asked questions
- Why add a fade?
- Because a cut in the middle of a waveform makes an audible click. A one-second fade removes it, and is the difference between a clip that sounds edited and one that sounds broken.
- Do my files get uploaded?
- No. This tool runs entirely in your browser, so the file never leaves your device.