Video Trimmer
Cut videos to the exact length you need. Fast mode trims instantly, precise mode cuts frame by frame.
Drop your video here
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How to trim videos in your browser
This free Video Trimmer cuts MP4, WebM, MOV, and AVI files entirely in your browser. No upload, no watermark, no signup — your files never leave your device. Powered by ffmpeg compiled to WebAssembly, it processes video locally with no server queue and complete privacy.
Features
- Trim MP4, WebM, MOV, and AVI videos — no upload required
- Visual thumbnail timeline for precise clip selection
- Fast Copy mode (stream copy) for instant trimming at keyframe boundaries
- Precise mode (H.264 re-encode) for frame-accurate cuts
- Output as MP4 with faststart for instant web playback
- File size comparison shows original vs trimmed size
- No watermark, no signup, no usage limits
- 100% client-side — private and free forever
Fast Copy vs Precise trimming
Fast Copy mode uses stream copy to extract the trimmed segment without re-encoding. This is extremely fast (nearly instant for most files) but may not cut on exact frame boundaries — instead it cuts at the nearest keyframe. For most use cases this is perfectly fine. If you need frame-accurate cuts (for example, for professional editing), use Precise mode which re-encodes the video with H.264 at CRF 23. Precise mode takes longer but produces exact start and end points.
Why use a no-upload video trimmer?
Most online video trimmers upload your files to a server for processing. This tool is different — everything runs in your browser using WebAssembly. That means faster processing with no queue, complete privacy for sensitive screen recordings or personal videos, and no file size limits beyond your browser's memory. There are no watermarks added to your output and no signup required.
Supported formats
MP4 (H.264/H.265), WebM (VP8/VP9), MOV (QuickTime), AVI. Works with videos from phones, screen recorders (OBS, Loom, ScreenPal), and cameras. Compatible with Chrome, Firefox, Safari, and Edge.
Trim videos for social media
Quickly cut clips from longer videos for Instagram Reels, TikTok, YouTube Shorts, or Twitter/X. Drop your video, drag the trim handles to select the clip you want, and download the trimmed MP4. No account needed, no watermark added, and your files stay on your device the entire time.