What is Mute Video?

Mute Video removes audio from any video file. Full mute strips the track entirely for a silent clip ready to share or re-score; you can also silence one or more sections by timestamp, or simply lower the volume to a percentage. Everything runs on your device — your video is never uploaded anywhere. Accepts MP4, WebM, MOV, MKV, AVI, and M4V.

The work is done by FFmpeg compiled to WebAssembly, running locally so the original file never leaves your device. Full mute drops the audio stream and copies the video untouched, so it's instant and lossless. Section-mute and volume-down re-encode the audio with a filter while the video is still copied byte-for-byte, keeping the same resolution and codec. Works on clips up to a few hundred MB; longer files just take longer.

How to use

1. Drag and drop your video file or click the upload area to select a video from your device.
2. Preview the original video, then click 'Remove Audio' to start processing.
3. Download the muted video once processing completes — your original file is untouched.

When to use

• Sharing a clip on socials where copyrighted music would trigger a takedown.
• Cleaning up a screen recording before adding your own voiceover in an editor.
• Removing background chatter or wind noise from a phone-shot clip.

Result

A social media creator has a 30-second MP4 clip with unwanted background noise. They upload it to Mute Video, click Remove Audio, and in seconds download a silent version ready to add a voiceover or music track in their editor.

FAQ

Will muting reduce the video file size noticeably?

Audio is usually 5–15% of a video file's total size, so expect a small reduction. For a 100 MB MP4 you might save 5–10 MB. If you need a much smaller file, run the result through a video compressor afterwards.

Does the muted output have the same quality as the original?

Yes. The video stream is copied byte-for-byte without re-encoding, so resolution, bitrate, and frame rate are identical to the source. Only the audio track is discarded.

Can I mute just one section instead of the whole video?

Yes. Switch to 'Mute a section', then set a start and end time to silence that part while the rest keeps its sound. Need a few gaps? Click 'Add another section' to silence several spans in one pass. There's also a 'Lower volume' mode to turn the audio down to a percentage instead of removing it, and 'Full mute' wipes the whole track at once.

Which video formats does it support?

MP4, WebM, MOV, MKV, AVI, and M4V are all accepted. MP4, WebM, and MOV are the most reliable; MKV and AVI work as long as the codec is mainstream (H.264, VP9). A rare exotic codec may still fail to load — if that happens, convert to MP4 first with a separate converter.

Why does it take a moment before processing starts?

FFmpeg loads as a WebAssembly module on first use, which is around 30 MB. After that initial load it's cached for the session, so muting a second clip starts immediately.

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