Strip the audio out of an MP4 or MOV in milliseconds, with the picture copied byte-for-byte. No re-encode, no upload, and no traces of the original sound left in the file.
When you turn down the volume in QuickTime or your phone's video app, you've only muted your speakers. The file itself still carries the audio, and the moment you share it — by message, by email, by uploading to a chat — whoever opens it hears whatever your microphone caught: background conversations, a ringtone, music playing nearby, a sentence you didn't realise you said out loud. Sometimes that's exactly what you didn't want to share.
Removing the audio from the file means there's nothing left for any player to play. The clip is genuinely silent for everyone who opens it, on every device, forever — not just for you.
Most online "mute video" tools follow a familiar pattern: upload the file to a server, decode all of it, set the audio to silence, re-encode the whole thing, send it back. That's a few minutes of waiting for what should be a one-second job, and the picture loses a small amount of quality on every re-encode.
Zimblu does the only thing that actually has to happen: it rewrites the file's container with the video stream copied byte-for-byte and the audio track simply omitted. In our tests, a 30-second 1080p clip mutes in 38 milliseconds — the time it takes to read the file's structure and write a new one with one track instead of two. The picture is bit-identical to the source.
No. Removing audio doesn't touch the picture at all — Zimblu rewrites the file's container with the video stream copied byte-for-byte and the audio track simply omitted. That's why it's almost instant: in our tests a 30-second 1080p clip mutes in under 40 milliseconds, no matter the file size.
Truly silent. The audio track is removed from the container entirely, not muted to volume zero. There's no hidden audio waiting to be turned back on by another player or social platform — opening the cleaned file in QuickTime or VLC shows that it has no audio stream at all.
It works on any MP4 or MOV file with H.264 or HEVC video, which covers essentially all phone footage, screen captures and modern camera output. If the file has no audio in the first place, Zimblu tells you so honestly rather than pretending it removed something.
No. Zimblu processes the file inside your browser, on your own device. The video doesn't reach a server at any point — you can disconnect from the internet after the page loads and the tool continues to work.
Because the mute button only affects how you hear the file, not the file itself. Once you share the video — by message, email or social — whoever opens it hears whatever you didn't mean to share, from background conversations to ringtones to whatever music was playing nearby. Removing the audio from the file means there's nothing to overhear, ever.
Cut to just the seconds you want — losslessly, in about a second.
Trim →Turn 90°, 180° or 270° in milliseconds — no re-encode.
Rotate →Strip GPS and capture date without touching the picture.
Clean →Pixelate faces, plates and private details — on-device.
Blur →