tooloora

Mute Video — remove the audio track from MP4 & MOV

Drop the sound without touching the picture: the video data is copied unchanged, so there is no quality loss — locally, no upload.

Runs locally — nothing is uploaded

Drop a video file here or click

MP4, MOV, WebM or MKV · one file · stays local

Runs locally in your browser – no upload.

Up to 120 minutes per video – longer material exceeds the browser's memory and your patience.

How do I remove the sound from a video?

Drop the file, download the result — that is all. The picture track is copied unchanged into a new MP4 file and the audio track is simply left out. Nothing is re-encoded, so no picture quality is lost, and the job finishes in seconds. Everything happens in your browser, without an upload.

Why is this lossless?

Because picture and sound are separate tracks inside a video file. The MP4 container (standardised as ISO/IEC 14496-14) stores them side by side, each with its own timestamps. Leaving one track out therefore means writing the same picture packets into a new shell. No decoder, no encoder, no loss — exactly the difference from tools that recompute the whole video just to mute it.

How much smaller does the file get?

By the size of the audio track. AAC at 128 kbit/s is 128,000 ÷ 8 = 16,000 bytes per second, so about 0.96 MB per minute. A ten-minute video loses just under 10 MB. If you want the file to actually shrink, use the compressor: practically all the data sits in the picture.

When is muting worth it?

Usually for two reasons. Privacy: background conversations, names, addresses or a television are recorded without anyone thinking about it, and it only becomes obvious when you share the clip. Copyright: music that happened to be playing in the room can trigger a claim when you publish; with no audio track there is nothing to detect.

Honest limits

This tool cannot turn the volume down — it removes the track completely. For a level change you need our audio tools plus an editor to put the sound back. If the picture codec does not fit into an MP4 container, a re-encode is required; the tool says so instead of faking losslessness. And the tab has to stay open until it finishes, even though that is usually only a few seconds.

Frequently asked questions

Is my video uploaded to mute it?

No. The file is opened in your browser, the audio track is left out and the picture is written into a new container on your device. Nothing is transferred at any point.

Does muting reduce the picture quality?

No. The video packets are copied unchanged — the same bytes end up in the new file, only the audio track is missing. That also makes it fast: a long clip is done in seconds, because nothing has to be re-encoded.

How much smaller does the file get?

Roughly by the size of the audio track. AAC at 128 kbit/s costs about 0.96 MB per minute, so a ten-minute video loses around 10 MB. If you need a real size reduction, compress the video instead — that is where the bulk of the data sits.

Can I lower the volume instead of removing it?

Not here. This tool only removes the track completely. Changing the level means decoding and re-encoding the sound, which our audio tools do — extract the audio, change its volume there, and use a video editor to put it back.

Why would I mute a video at all?

Usually privacy: background conversations, names or a TV running in the room are recorded without anyone thinking about it. Removing the track is also the simplest way to avoid a copyright claim from music playing in the background when you post a clip.