Video Trimmer — Free Online Tool
Trim any video file to a specific time range without re-encoding. Uses FFmpeg.wasm stream copy for instant, lossless trimming. Supports MP4 and WebM output. ~25 MB WASM on first use.
100% client-side. No uploads. Your data never leaves your browser.
How to use Video Trimmer
- Drop a video file
- Set start and end times
- Choose output format
- Click Trim Video
- Download the trimmed clip
Frequently Asked Questions
Does trimming reduce quality?
No — stream copy (-c copy) re-muxes the video without re-encoding, preserving the original quality.
What video formats are supported?
Input: MP4, MOV, AVI, WebM, MKV. Output: MP4 or WebM.
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