Trim Audio
Drop the file, drag the edges of the selection over the waveform and listen to the section before exporting. The wave is drawn from audio the browser itself decoded, and the cut is made by ffmpeg in WebAssembly: nothing you open here is sent to any server.
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How it works
The default copies the stream without re-encoding, which is near-instant and lossless — but in a lossy format the cut lands on the nearest coding frame, so the start can shift by a fraction of a second. If the exact point matters, turn on the exact cut: the section is re-encoded in the same format, at the point you marked. In wav and flac the difference does not exist, because the frame is a single sample.
- Waveform with a draggable selection and a preview of the chosen part
- Start and end fields for fine adjustment, accepting 90, 1:30 or 00:01:30.5
- Stream-copy cut, instant and lossless, as the default
- An exact-cut mode for when the point matters more than the processing time