Mute Video (Remove Audio)
Strip the sound out of a video without touching the picture. The video stream is copied rather than re-encoded, so the result is pixel-identical, finishes in seconds, and never leaves your device.
Why removing audio is instant
A video file is a container — MP4, MOV, MKV — holding separate streams. Muting does not edit the picture at all: it opens the container, copies the video packets into a new one, and leaves the audio behind. Nothing is decoded, so nothing is re-compressed.
That is the difference between this and a server-side muter. Most online tools decode and re-encode the whole video, which costs minutes of waiting, a generation of quality, and a round trip that puts your file on someone else's machine.
What you keep and what you lose
| Kept | What that means |
|---|---|
| Picture | Copied packet for packet. The output is pixel-identical to the source — no re-encode, no generation loss, no change in resolution or frame rate. |
| Container and metadata | An MP4 stays an MP4. Chapters, subtitles, and rotation flags travel with the file, so a portrait phone clip still plays the right way up. |
| File size | Drops by whatever the audio track weighed — a 128 kbps track is about 1 MB per minute, so expect a few percent rather than a dramatic saving. |
| Removed | What that means |
|---|---|
| Every audio track | Multi-language files lose all of their audio streams, not just the first one. To keep one, extract it first and remux it yourself. |
| Nothing else | Muting is not an edit. Length, timing, and every frame stay exactly as they were, which is why the job finishes in seconds. |
Want to keep the sound as a separate file before you strip it? Extract the audio first — that path is lossless too.
When a silent track beats no track
Upload pipelines that expect a stream
Some ad platforms, broadcast portals, and older CMS validators reject a video that carries no audio stream at all, reporting a corrupt file rather than a missing track. A silent AAC stream satisfies the check and stays inaudible.
Editing timelines that need a matching track
A few NLEs and slideshow tools align clips by audio and behave oddly when one clip in a sequence has none. Giving every clip a silent track keeps the timeline consistent.
When to just remove it
Everywhere else. Social platforms, messengers, browsers, and every modern player handle an audio-less video fine, and removing the track leaves the smaller, simpler file.
Frequently asked questions
Does muting reduce video quality?
No. The video stream is copied across untouched, so the output is pixel-identical to the source — same resolution, same frame rate, same codec. Only the audio track is dropped.
Why is this so much faster than other muters?
Because nothing is re-encoded. Server-side tools usually decode and re-encode the whole video, which takes minutes and costs quality. Here the video packets are copied straight into a new container, so the job runs at the speed the file can be read.
Should I remove the audio or replace it with silence?
Remove it, unless something downstream refuses a file with no audio stream. A few upload pipelines and editing apps expect every video to have one; for those, the silent track option writes a valid but inaudible AAC stream.
Is the muted file smaller?
Slightly. Audio is usually a small share of a video's size — a 128 kbps track is about 1 MB per minute — so expect a few percent, not a dramatic reduction. If you need a much smaller file, the size has to come out of the video bitrate.
Is my video uploaded to a server?
No. Everything runs in your browser using ffmpeg compiled to WebAssembly. The only network request is a one-time download of the engine from a public CDN, and the video itself never leaves your device.
Which formats can I mute?
MP4, MOV, MKV, WebM, M4V and AVI, up to 200.0 MB. The output keeps the source container, so an MP4 in gives an MP4 out and a phone MOV stays a MOV.
Can I mute only part of the video?
Not in this tool. It removes the track for the whole file. To silence a section, cut the clip first and mute the piece you need.