Trim audio
Your files are processed on your device. We never upload them.
Audio is read and written with Mediabunny. MP3 files are made with LAME and FLAC files with libFLAC; browsers without their own AAC encoder use FFmpeg's. Apple Lossless files follow Apple's ALAC code.
How to trim audio
- 01A ▸Choose an audio file, or drop it on the page. Its waveform appears.
- 02A ▸Drag the start and end handles, or type the times. Play the selection to check it.
- 03A ▸Add a fade in or out if you like, and pick the format to save.
- 04A ▸Select Trim audio, listen to the result, and download it.
Questions
Which files can I trim?
MP3, M4A, WAV, FLAC, OGG, OPUS, AIFF, and the sound of MP4 and MOV videos. Save the result in the same format, or as MP3, M4A, or WAV.
Are my files uploaded?
No. Your files are processed on your device. We never upload them.
Does trimming lose quality?
Saving as WAV loses nothing. Saving as MP3 or M4A compresses the trimmed part again, which at High (192 kbps) is very hard to hear.
How precise is the cut?
To the tenth of a second when typed, and finer when dragged; the cut itself lands on the exact sample. Add a short fade (half a second) to avoid a click where the sound is cut mid-note.
Can I trim long recordings?
Yes. A computer handles an hour or more. On a phone, recordings over about 15 minutes get a warning, because the whole sound is held in memory while you choose; you can try anyway.
Can I cut out a part in the middle?
This page keeps one part. To remove a middle section, trim the part before and the part after, then join them with Merge audio.