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Close-up of a video timeline with layered clips and audio tracks
Processed in your browser · no upload

Trim video (cut the start and end)

Cut off the head and tail, keep the middle — no re-encode, near-instant, no quality loss.

Your screen recording has ten seconds of waffle at the start, or you forgot to stop it at the end — just cut it.

Drag & drop or click to select a fileFiles are processed locally in your browser, never uploaded

Stream copy doesn't re-encode — near-instant, no quality loss; the start snaps to the nearest keyframe.

How to use trim video

  1. 1Drop in or select a video file.
  2. 2Set the start time and end time (the segment in between is kept).
  3. 3Click Trim. ConvertMeow stream-copies by time without re-encoding.
  4. 4Download the trimmed clip. All local, near-instant.

Why use ConvertMeow's Trim video?

  • No re-encode, no quality loss: it stream-copies at keyframes, slicing time without recompressing, so the cut clip is as sharp as the original.
  • Practically instant: skipping the heaviest step (encoding) means even a few-hundred-MB video trims in seconds.
  • The video stays local: trim a screen recording or private clip and send it without it ever hitting a server.

Frequently asked questions

Trimming uses stream copy — it doesn't re-encode the picture, it just copies the data for the chosen time range as-is, so it's near-instant. Compression has to re-encode every frame to a lower bitrate, which is far more work and therefore slower.

Stream copy cuts at the nearest keyframe, so the start can snap to a nearby keyframe and be off by a fraction of a second (the inherent trade-off for no re-encode — you get speed and zero quality loss). For frame-exact editing you need editing software that re-encodes.

Updated · ConvertMeow team

Sources, review and limits

Last verified

2026-06-17

Author

ConvertMeow editorial desk

Reviewer

Browser media tooling review

Primary sources

  • Browser File, Canvas, Audio and Video APIs
  • Open-source client-side conversion libraries where a format needs a parser or encoder
  • User-provided files processed in the browser

Conversion output depends on the original file, browser support and codec limits. Use the exported file for convenience, and verify mission-critical media in your own workflow.