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Video Cutter and Joiner

Cut or join clips with an honest fast-versus-precise choice.

This tool processes selected files in your browser.

Accepted: video/mp4, video/webm, .mp4, .webm, .mov. Desktop cap 250 MiB per file.

Mode

Start s

End s

Join order

Audio

Output

How it works

Choose a short MP4 or WebM clip.
Set start and end. Precise re-encodes; keyframe copy is faster and less accurate.
Mute strips the audio stream. Download a new file.

Clips stay in this tab. No upload.

Browser uses single-thread ffmpeg.wasm. Long clips are device-limited.

MP4/WebM in. MP4 or WebM out via local ffmpeg.

A 2s clip cut 0–1s is about one second and is not a renamed original.

Does mute leave silent audio?

No. Mute removes the audio stream.