Video Trimmer

Trim and cut video files

Click or drop a video file here

About Video Trimmer

Video Trimmer cuts a section from your video by playing it and re-recording just that range using the browser's native MediaRecorder API, entirely client-side. Output is always WebM. Note: since trimming works by playing through the selected range in real time, processing takes as long as the trimmed clip's duration, not the length of your original file.

How to use Video Trimmer

1Click the upload area and select a video file.
2Use the Start and End sliders to set the section you want to keep.
3Click "Trim Video" — the selected range plays through once while it's recorded.
4Preview and download the trimmed WebM file.

Frequently Asked Questions

Does trimming preserve the exact original quality?

Not quite — the clip is re-encoded through the browser's WebM encoder rather than cut losslessly.

What output format do I get?

Always WebM, regardless of your original file's format.

Is audio preserved?

Yes, audio is captured along with the video track.

Is my file uploaded anywhere?

No, trimming happens entirely in your browser.

Tips & Tricks

✓Trimming takes about as long as your selected clip's duration, since it plays through in real time while recording — a 30-second trim takes about 30 seconds.
✓Keep the browser tab open and active while trimming, since the video needs to actively play for the recording to capture it.
✓Preview your start and end points on the full video before trimming to avoid re-doing the process.
✓If you need a format other than WebM, convert the trimmed result afterward with a dedicated converter.