Audio Trimmer
Cut an audio clip down to the exact time range you need, entirely in your browser via ffmpeg.wasm.
Whether you need a short ringtone, a clean sound bite from an interview, or just want to cut the dead air off a recording, this tool trims audio to an exact start and end time using FFmpeg running locally via WebAssembly. Trimming uses stream copy rather than re-encoding, so it's fast and lossless - the output audio quality matches the source exactly within the selected range.
Loading tool
How it works
- 01
Drop or select your audio file.
- 02
Enter the start and end time (MM:SS or HH:MM:SS).
- 03
Click Trim and download the clipped result.
Details
- Category
- Audio
- Runs
- In your browser
- Files uploaded
- No
- Cost per run
- Free
- Sign-in
- Not required
- Works offline
- Yes, once loaded
Last updated 2026-08-03
Common questions
What time format do I use?
MM:SS or HH:MM:SS, e.g. 1:30 for one minute thirty seconds.
Does it re-encode the audio?
No - trimming uses stream copy so it's fast and lossless.
Does it upload my audio?
No - trimming runs locally with WebAssembly. Nothing leaves your browser.
What if the cut point sounds slightly off?
Stream-copy trims align to the nearest keyframe. If a cut sounds imprecise, nudge the timestamp slightly and re-trim.