Multiple audio tracks, all removed
MKV files often carry several audio tracks, such as different languages, commentary or alternative mixes. MuteVideo removes every one of them, so no player can fall back to a hidden track.
Mute MKV video
All audio tracks out. Video and subtitles stay in place.
Drop a video here
MP4, MOV, WebM, MKV, AVI · MP4 and MOV up to 4 GB
- No upload
- No watermark
- No sign-up
- Free
What happens to your file
A video file is a container: one track holds the picture, other tracks hold sound, subtitles or timecode. To mute a video, MuteVideo removes the audio tracks and copies the picture track exactly as it was — nothing is decoded or compressed again.
For MP4 and MOV, only the file’s index is rewritten in your browser. The picture data is referenced in place, so even large files finish in seconds without filling your device’s memory.
For WebM, MKV and AVI, an FFmpeg engine compiled to WebAssembly runs in your browser tab and performs the same stream copy.
Your video is read from your device and saved back to it. It isn’t sent to a server.
Good to know
Subtitles are kept
Subtitle tracks inside the MKV are left untouched. If you mute a video to show it silently or to add your own soundtrack later, viewers can still turn on the existing subtitles.
The engine and its limits
MKV files are processed by an FFmpeg engine that runs in your browser as WebAssembly. It is downloaded once on first use (about 31 MB) and usually cached. Because it works in memory, MKV files can be up to 500 MB on desktop and 150 MB on mobile.
Why there may be no preview
Most browsers cannot play MKV directly, so the preview may not appear. Processing and download still work, and the file opens in video players that support MKV.
MuteVideo compared with upload-based editors
| What matters | MuteVideo | Typical upload-based editor |
|---|---|---|
| Uploading your video | Not needed | Required before editing |
| Picture quality | Copied without re-encoding | Often re-encoded on export |
| Watermark | Never | Common on free plans |
| Several videos at once | Up to 20, free | Often a paid feature |
Questions and answers
Are subtitle tracks removed?
No. MKV subtitle tracks are kept; only audio tracks are removed.
Is the video re-encoded?
No. The video stream is copied without re-encoding, so quality is unchanged.
Can I keep one language and remove the others?
No. MuteVideo removes every audio track and does not let you pick individual tracks.
Why can’t I play the result in my browser?
Many browsers don’t support MKV playback. Download the file and open it in a video player that does.