Free · no signup · never uploaded
Remove Audio from Video
Strip the sound out of a video — fast, lossless, never uploaded.
Drop a video here or choose a file
or drop your file here.
MP4 · MOV · MKV · WEBM — muted in your browser, never uploaded
Runs in your browser — your file is never uploaded.
Short answer
To remove audio from a video, drop it below and download the silent version. The video stream is copied, not re-encoded, so it’s fast and the picture quality is untouched — and it all runs in your browser.
Why muting a video is instant
Removing audio doesn’t touch the picture at all. The tool simply copies the existing compressed video stream into a new file and leaves the audio track out (-an -c:v copy). Nothing is decoded, nothing is re-encoded, so a large file is done in seconds and the video is bit-for-bit identical to the source. This is the fastest operation in the whole video toolset.
When you’d want a silent video
The usual reasons are practical: removing background noise, wind, or chatter you don’t want in the final cut; stripping copyrighted music before uploading somewhere that would flag it; preparing a clip to lay a new voiceover or soundtrack over; or making a video safe to autoplay on a page, since browsers only autoplay muted video. In every case you want the picture untouched — which is exactly what a stream copy gives you.
Video formats to MP4 — what happens to your file
| Input format | Usual codecs inside | Conversion | Max file size |
|---|---|---|---|
| MOV (QuickTime) | H.264 + AAC | Rewrap (lossless) | 500 MB |
| MKV (Matroska) | H.264 + AAC | Rewrap (lossless) | 500 MB |
| WebM | VP8/VP9 + Opus | Re-encode to H.264 | 100 MB |
| AVI | MPEG-4/DivX | Re-encode to H.264 | 100 MB |
| GIF | Animated GIF | Re-encode to H.264 | 200 MB |
A rewrap copies the existing video and audio streams into an MP4 container untouched — it is lossless and finishes in seconds. A re-encode decodes and re-compresses, so it takes longer and loses a little quality. Size caps differ because everything runs on one thread in your browser.
How the audio is removed
Everything happens locally in your browser with ffmpeg — here is exactly how:
- Load the engine. ffmpeg compiled to WebAssembly loads once from this site — your file is never uploaded.
- Drop the audio track. ffmpeg is told to exclude audio (-an) while copying the video stream verbatim (-c:v copy), so nothing is decoded.
- Rebuild the container. the video-only stream is written into a fresh MP4 with the moov atom at the front so it plays and seeks immediately.
Assumptions
- Everything runs client-side; the video stream is copied, never re-encoded.
- Picture quality is identical to the source.
- Only the audio is removed — length and framing are unchanged.
Last reviewed: July 19, 2026
Frequently asked questions
How do I remove the audio from a video?+
Drop your video in above and press the button — you’ll get back the same video with no sound. It runs entirely in your browser and takes only seconds.
Are my videos uploaded to a server?+
No. Everything runs 100% in your browser using ffmpeg compiled to WebAssembly, so your file never leaves your device. Nothing is uploaded, stored, or sent anywhere — and once the converter has loaded it even works offline.
Does this reduce the video quality?+
Not at all. The video stream is copied rather than re-encoded, so the picture is bit-for-bit identical to the original. Only the audio track is dropped.
Will the file get smaller?+
Slightly. Audio is usually a small share of a video’s size, so removing it typically saves a few percent — the picture data, which is the bulk of the file, is unchanged.
Why is the first conversion slower?+
The first time, your browser downloads the ffmpeg engine (about 31 MB) and starts it up. That happens once — later conversions reuse the loaded engine and are much faster.
Can I get the audio back afterwards?+
Not from the muted file — the track is gone from it. Keep your original if you may need the sound again, or extract it first with the MP4 to MP3 tool.
Related tools
Video is processed entirely in your browser with ffmpeg and never uploaded.