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.
Runs on your device. This tool processes your file inside this browser tab. Nothing is uploaded, so it also works offline once the page has loaded, and closing the tab discards the file from memory.
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 2026-08-12
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.