Video Trimmer — Cut Videos Without Re-encoding
Trim any video to the exact length you need directly in your browser. Set the start and end points using a visual timeline, preview the trimmed segment, and download the result — all without uploading your video to any server. No watermarks, no signup, no quality loss.
Two things separate this from the usual free trimmer. Stream copy is used whenever the cut points allow it, so nothing is re-encoded and the frames you keep are bit-for-bit the original. And nothing is uploaded, so a 400 MB screen recording does not become a 400 MB upload before you can even choose where to cut. Set the in and out points on the timeline, preview to check you have not clipped the first word, and download.
How to use Video Trimmer
- Upload your video file (MP4, WebM, AVI, MOV, MKV).
- Use the visual timeline sliders to select your start and end points.
- Preview the trimmed video segment to ensure accuracy.
- Save and download your newly trimmed video instantly.
Features
- Visual timeline — Easily select start and end points with standard sliders.
- Lossless trimming — Uses stream copy mode when possible for instant, high-quality cuts.
- Preview segment — Watch your targeted selection before finalizing the trim.
- 100% browser-based processing — Videos are never uploaded or watermarked.
Frequently Asked Questions
Will my video lose quality after trimming?
Whenever possible, our tool uses a "stream copy" mode to trim videos without re-encoding them, which means absolutely zero quality loss. The video remains exactly as crisp as the original.
Is there a file size limit for trimming?
Since everything runs in your browser using local resources, you are only limited by your device's available memory (WebAssembly currently supports files up to roughly 500MB well). There are no artificial limits from our side.
Why does my cut start slightly earlier than I set it?
Stream copy can only cut on a keyframe, and in most video those appear every one to two seconds. Asking for a cut between keyframes means the nearest earlier one is used, so you may get a fraction of a second extra at the start. Turn stream copy off if you need a frame-accurate cut and can accept a re-encode.
Which mode should I use for social media?
Keep stream copy on unless you need an exact frame. Platforms re-encode everything you upload anyway, so handing them an untouched original gives their encoder the best source to work from. Re-encoding here first just means the platform compresses an already-compressed file.