Private browser tool
Trim a video without uploading it
Free, private, in-browser video trimming — nothing leaves your device. Enter start and end times, keep only the section you need, and download a new MP4 locally.
How trimming works here
Set a start and end point, and the tool exports just that segment, discarding the rest, using in-browser ffmpeg. It all runs on your device, so your video is never uploaded. Trimming to only the part you need is also the quickest way to make a video smaller.
When to trim a video
- Cut dead air: remove slow starts and endings.
- Grab a highlight: pull one moment out of a long recording.
- Fit a limit: shorten a clip to get under an upload size cap.
- Fix mistakes: cut out a fumble before sharing.
Trim first, then compress or convert
If a video is too big, trimming is the single biggest size saving you can make — a shorter clip is a smaller file, before you change anything else. Do your trimming first, then run the result through the compressor or converter if you still need to shrink or reformat it. Trimming is also non-destructive to your source: you're exporting a new clip, so the full-length original on your device stays exactly as it was.
Frequently asked questions
Is my video uploaded anywhere?
No. Trimming runs entirely in your browser, so your video never leaves your device.
Does trimming re-encode the video?
It exports the selected segment with quality kept close to the original, and nothing is uploaded during the process.
How long or large can the video be?
There's no fixed cap, but big files use more of your device's memory, so a computer handles them best.
Which formats are supported?
Common formats like MP4, MOV, and WebM.
Can I trim more than once?
Yes — export a segment, then trim again if you need to refine it.