Question 1

How do I trim a video for free without watermarks?

Accepted Answer

Choose a video file, drag the start and end sliders to your desired clip, and click Trim Video. This tool processes your video locally in your browser using WebAssembly, so there's no upload, no watermark, and no account required.

Question 2

Is my video uploaded to a server when I trim it?

Accepted Answer

No. This trimmer runs entirely client-side using ffmpeg.wasm, a WebAssembly build of FFmpeg. Your video file never leaves your device — trimming happens locally in your browser tab.

Question 3

Are the cuts frame-accurate?

Accepted Answer

Yes. This tool re-encodes the selected range instead of copying the raw video stream, so the trimmed clip starts and ends exactly where you set the sliders. Re-encoding takes a little longer than a raw copy, but avoids corrupted or misaligned output.

Question 4

What video formats does this trimmer support?

Accepted Answer

This tool accepts MP4, MOV, WebM, and most common video formats, and exports the trimmed clip as an MP4 file.

Video Trimmer

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How to trim a video online for free

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