Trim Video
Take a section out of a video, copying the streams so it is fast and lossless.
What it does
Trim Video works on MP4, MOV, WEBM, MKV and AVI with ffmpeg and audio engines compiled for the browser, so the recording or video is processed by your own computer or phone — the same programs a desktop editor uses, without installing one.
When you need it
Usually right before sending or publishing: a video too heavy for WhatsApp, a voice note full of hum, a clip that needs captions because the feed plays it muted, an interview to turn into text.
Limits and caveats
Long or high-resolution files take as long as your device needs, and a phone is slower than a laptop. The engines download once, the first time, and come from KIVO itself. The original file is never changed: you always download a new one. Everything happens in your browser, so the file never leaves your device.
How to trim video
- Drop the video.
- Drag the two handles to the section you want.
- Download the cut.
Everything happens on this device: no file is uploaded and nothing leaves the browser.
Frequently asked questions
- Does trimming lose quality?
- No. The streams are copied rather than re-encoded, so the result is bit-for-bit the original footage — and it takes a second rather than minutes.
- The cut starts slightly early.
- Because a copied stream can only start at a keyframe, and keyframes are a second or two apart. Getting an exact frame means re-encoding, which costs the quality and the speed — convert it instead if you need that.
- Do my files get uploaded?
- No. This tool runs entirely in your browser, so the file never leaves your device.