Video Trimmer

Upload your video, pick a start and end point, download just that clip. Free, no sign-up, runs entirely in your browser.

How it works

  1. Upload your video. MP4, MOV, WEBM, MKV, or AVI, up to 300MB.
  2. Pick a start and end point. Two values in seconds — the resulting clip length updates live as you type.
  3. Download the trimmed video. Processed entirely in your browser, without re-encoding quality whenever possible.

Why Stelluna

Frequently Asked Questions

Is it free?
Yes, no account needed, no limit on how many videos you trim.

Does my video get uploaded anywhere?
No, trimming runs entirely in your browser using your device's own video processor — your video is never sent to a server.

Does trimming reduce video quality?
If you're only cutting the end (start stays at 0), the video stream is cut directly without any re-encoding — zero quality loss. If you also change the start point, the video is automatically re-encoded at high quality so it can start cleanly at that exact frame.

What format is the output?
The same format as your source video whenever possible (MP4 stays MP4, WEBM stays WEBM) — formats that can't be targeted directly (like AVI) fall back to MP4 (H.264 + AAC).

Do I need to sign up?
No.