Remove the audio track from a video
Drop a video and get the same file with the sound removed. The video stream is copied untouched, so the result is instant and identical in quality; only the audio track is dropped.
How to use the Mute Video
- Drop the video.
- Click Mute video.
- Download the silent copy (same format, same quality).
Why remove audio
Background noise in a screen recording, a private conversation captured during a family clip, music you do not have the rights to share, or simply a smaller file for a silent website background: removing the audio track solves all of these without touching the picture.
How it works
The tool copies the video stream into a new container and leaves the audio stream out. No frames are decoded or re-encoded, so it finishes in a few seconds even for large files and the picture is bit-for-bit identical. The file shrinks by the size of the audio track, typically 5–15%.
Replacing the audio
To add different audio, mute first, then combine with your soundtrack in an editor; a browser-based merge tool is planned. To keep the audio but lower its size, use the compressor with a low audio bitrate.
How it runs without uploading
This tool uses ffmpeg, the same open-source engine behind most video software, compiled to WebAssembly. The first time you use a video tool the engine (about 30 MB) is downloaded from a content delivery network and cached by your browser; after that it loads instantly, even offline. Your video is read into memory, processed by the engine inside the browser sandbox, and the result is offered as a download. Nothing is transmitted. Because it runs on one CPU core, encoding takes roughly real time to three times real time depending on your device: a 30-second clip takes 30–90 seconds, a 10-minute video may take 10–30 minutes and needs a few hundred megabytes of free memory. For long videos, trim first or use a desktop tool.
Frequently asked questions
Does muting change the video quality?
No. The video stream is copied without re-encoding.
Which formats work?
MP4, MOV, WebM, MKV and M4V; the output keeps the same container.
Is the file uploaded?
No. Everything runs in your browser.
Privacy
This tool runs entirely inside your browser using WebAssembly and the Canvas/File APIs. Your files are never uploaded to ToolFlint or any third party; you can verify this in your browser's network tab or by switching to airplane mode after the page loads. Read how we process files.
Last updated 2026-09-23.