Video Trimmer
Trim cut video by time range
Trim cut video by time range Runs locally in your browser
About the
The Video Trimmer cuts a clip down to the part you need, in the browser, without re-encoding. It uses ffmpeg's stream copy mode with input-side seeking, so a trim finishes in seconds and the kept frames are bit-for-bit identical to the source.
Drag the start and end sliders to frame your cut; the player previews at the selected point. Stream copy cuts on keyframes, so the result is lossless and instant. If the output misbehaves in a specific player, the Video Converter can re-encode it for maximum compatibility.
Nothing is uploaded. The file you select stays on your machine, which is what you want when trimming client footage or personal video.
Where people use the
- Cutting the highlight out of a long recording.
- Removing dead air at the start or end of a clip.
- Extracting a segment to send to someone.
How to use the
- 1
Add a video
Drop in a clip; its duration is read automatically and the sliders are set to the full range.
- 2
Set start and end
Drag the two sliders. The selected length is shown live.
- 3
Trim
Stream copy mode means the cut is nearly instant, regardless of clip length.
- 4
Download
Preview and download the trimmed MP4. No watermark, no upload.
Tips and best practices
- If the trimmed file stutters in one player, re-encode it once with the Video Converter.
- Cut a little wide on both sides; you can always trim again but you cannot un-crop.
Frequently asked questions
Why is trimming so fast?
Stream copy skips re-encoding entirely. Only the container is rewritten; video and audio frames are copied byte-for-byte.
The cut point is a second or two off. Why?
Stream copy can only cut on keyframes. For frame-exact cuts, trim with a small margin and use the Video Converter to re-encode the result.
Does it work with any format?
Anything ffmpeg can read: MP4, MOV, MKV, WebM and more. The output is always MP4.
Is my video uploaded?
No. The whole process runs locally in your browser.