Trim video online
Mark the start and end, and the rest goes away. A regular trim works at keyframes with no re-encoding, so it's nearly instant. Everything runs in your browser.
Drag a file here or click to select
MP4, MOV, WebM, MKV. The file stays on your device
Trim video without uploading it anywhere
The whole trim happens in the browser tab: your file is read from disk and the selected range is written into a new file on your own machine, with no copy sent to a server and no retention policy to read. Memory is the one hard limit. Anything over 2 GB is refused, and above 500 MB on a desktop or 300 MB on a phone the page warns you before starting, because that is where a tab starts to struggle.
Why the default trim keeps quality exactly as it was
By default the video trimmer copies the compressed streams instead of rebuilding them: frames move into the new container untouched and the audio comes along unchanged, so the clip you download is pixel-for-pixel what you started with. A copy like that runs at disk speed, which is why a two minute cut out of a 500 MB recording finishes in seconds while compressing the same file would take minutes.
Keyframes, and when to use Precise trim
The catch with copying is that a video file can only begin at a keyframe, a full picture that later frames are described against. Encoders place them every one or two seconds, so a plain trim snaps your start point back to the nearest one and the cut can open up to a second early. For most uses nobody notices. When the frame matters, tick Precise trim: the selection is decoded and encoded again so it starts exactly where you put the handle, at the cost of a slower run and one generation of compression loss.
After the cut
Trimming is the cheapest way to shrink a file, because you are deleting seconds rather than detail. If the result is still too heavy for email or a messenger, run it through the video compressor, which reports the size it saved. To keep only the sound from the section you kept, use the MP3 cutter, and to put a new track over the clip there is add music to video. If you need footage that does not exist yet, our AI video models generate it from a prompt or a photo on the paid side of the site.
Frequently asked questions
How do I trim a video online?+
Drop the file in, drag the left and right handles on the timeline to the section you want to keep, and click Trim video. The result is ready to download as soon as the progress bar fills, which for a short cut means a few seconds.
Why is trimming so much faster than compressing?+
A normal trim copies the existing video and audio streams into a new file and throws away what falls outside the handles. No frame is decoded or re-encoded, so the work is proportional to the file size rather than the running time, and the picture that comes out is identical to the one that went in.
My cut starts half a second early. Why?+
Compressed video can only start a new file at a keyframe, and keyframes usually sit one or two seconds apart. A plain trim snaps your in-point back to the nearest one. Tick Precise trim to re-encode the selection instead, which lands on the exact frame you picked and takes longer.
Does the quality drop?+
Not on a normal trim, because nothing is re-encoded. Precise trim does compress the selection again, so there is a small loss, usually invisible on a short clip. If quality matters more than the exact boundary, leave the box unticked.
Which formats can I trim, and how large?+
MP4, MOV, MKV and WebM. An MP4 or MOV source comes back as MP4; a WebM source stays WebM. Files over 2 GB are refused, and past 500 MB on a computer or 300 MB on a phone the page warns you that memory may run short.
Are there watermarks or a sign-up?+
Neither. The clip you download carries no logo or overlay of any kind, and there's no account to make before you start.