Trim video online free

By default — no: the fragment is cut without re-encoding, the video is not recompressed, quality stays exactly as the original, and processing takes seconds even on large files. With “Frame-accurate” on the video is encoded again — once, at high quality, but it is no longer a copy.

Nowhere. Trimming happens in your browser, on your device — the file is never sent to a server.

Cutting without re-encoding is only possible at the video's keyframes, so the start moves back to the nearest keyframe — usually by 1–2 seconds, sometimes more. The tool tells you by how much. If you need frame accuracy, turn on “Frame-accurate”: the file is re-encoded, which is slower.

This tool keeps one selected fragment — you set the start and the end. To remove a piece from the middle and join the rest, use the editor on this site.

The container is the same as the source: MP4 stays MP4, MOV stays MOV. By default (no re-encoding) the codecs stay as they were too. With “Frame-accurate” on, the video is encoded again — usually as H.264, so an iPhone HEVC clip comes out as H.264.

No watermarks, no sign-up, no limits on length or number of clips. It is a fully functional free tool.

Yes, the source can be big: it is never uploaded, so there is no “500 MB max” kind of limit here. The limit is at the other end — the finished fragment is assembled whole in tab memory, and a browser cannot assemble a file larger than 4 GB (and from about 2 GB it already needs twice that much free memory). If you need a fragment that big, cut it in parts. Large files are easier to trim on a desktop.

No. Everything runs in the browser: open the page, pick a file, save the result.