Trim an audio file
Cut MP3, WAV or M4A with a waveform and fades.
Runs on your device — never uploaded
How to trim an audio file
- Add audio
Drop an MP3, WAV, M4A, OGG or FLAC file.
- Mark the section
Drag the handles on the waveform; add fade in and fade out if you like.
- Export
Preview and download in the same format or as MP3.
Frequently asked questions
Is my video uploaded?
No. FFmpeg runs as WebAssembly inside your browser tab. Nothing leaves your device.
Why does the tool take a moment to start?
The FFmpeg engine (~30 MB) downloads once on first use and is then cached on your device for instant starts later.
Does trimming re-encode?
MP3 and AAC are cut without re-encoding when no fade is applied; fades require a re-encode.