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Why this runs on your computer

There is no upload: The work happens in this tab. Your file never travels, so there is no copy of it anywhere but your own disk.
Nothing to delete later: Sites that upload promise to delete your file afterwards. That promise only matters because the file was theirs to hold.
It works with the Wi-Fi off: The honest test. Turn off your connection and the tools keep working, because everything they need is already here.

Drop your video hereto load the tools

Nothing is uploaded — the tools run right here

Applies to every loaded image

Look Strength 100% Brightness Contrast Saturation Vibrance Vignette

Max width Format Shape

Shape Size Across Down Border

Text Where

100%

Mute video — MP4 files, without uploading

Strip the sound out of a clip, starting from MP4 video — here in this tab, with nothing uploaded.

How to mute video (MP4)

Drop your MP4 file in.
Remove the audio.
Save the silent clip.

Why this one stays private

Muting is often about removing something you did not mean to record — a conversation in the background. Uploading it first defeats the point entirely.

Questions

Does this work with MP4 files?

Yes — that is what this page is set up for. MP4 is the format everything plays, and the safe answer when you are not sure.

Is the audio really removed?

Yes. The saved file has no audio track at all, not a silent one.

Does the video get re-encoded?

It does not need to be. Dropping a track leaves the picture untouched.

How to mute video (MP4)

Why this one stays private

Questions

The same tool, other formats