# Remove audio from video: mute a video online, free, no upload

> Remove the sound from a video in your browser. The picture is copied as it is, so it takes seconds and loses no quality. MP4, MOV, WebM and MKV. Nothing is uploaded.

URL: https://cutfac.com/tools/remove-audio-from-video  
Last updated: 2026-10-29  
Language: [한국어](https://cutfac.com/ko/tools/remove-audio-from-video)

Drop in a video and download the same video with no sound. The picture is copied as it is, not encoded again, and the video never leaves your browser.

Runs in your browser. Nothing is uploaded.

## How to use it

1. **Add the video.** Drop it in. The tool shows its size, length and the sound it carries.
2. **Remove the audio.** Tap Remove audio. It usually takes a few seconds, even for a long video.
3. **Check and download.** Play the result to check it's silent, then download it.

## How it works

A video file keeps its picture and its sound in separate tracks. The tool copies the picture track into a new file and leaves the sound tracks out, so nothing is encoded again: the picture is identical to the original, and the file is smaller by the size of the sound.

H.264 and HEVC video, the kind phones and most cameras record, comes out as an MP4, MOV files included. VP8, VP9 and AV1 video from a WebM or MKV stays in a WebM, so it can be copied too.

## What it doesn't do

It removes all the sound, from start to end. To silence only part of a video, or to keep the voice and drop the music, you need an editor.

## With ffmpeg

The same job in ffmpeg: -c copy copies the streams as they are, and -an leaves the audio out.

- ffmpeg -i input.mp4 -c copy -an output.mp4

## Sources

- [FFmpeg Documentation: Audio Options](https://ffmpeg.org/ffmpeg.html#Audio-Options)

## Questions

### Is my video uploaded?

No. The video is read and rewritten in your browser. Nothing is sent anywhere.

### Does removing the audio lower the video quality?

No. The picture is copied bit for bit, not encoded again, so it's identical to the original.

### Why is the result smaller?

The sound track is gone, and that was part of the file. How much smaller depends on how long the video is and how much space its sound took.

### Which videos can it read?

MP4, MOV, WebM and MKV with H.264, HEVC, VP8, VP9 or AV1 video. H.264 and HEVC come out as MP4, the others as WebM.

### Can I mute only part of the video?

No, this tool takes out all of the sound. Muting a stretch of it means editing the sound, which needs an editor.