Mute Video — Remove the Audio
Strip the sound from a video and get a clean, silent MP4 — near-instant, because the picture is copied rather than re-encoded. No upload, works offline, no watermark. Your video stays on your device.
Runs entirely in your browser — your video is never uploaded.
- No upload Your video never leaves your device — it is processed locally.
- Works offline After the first load it runs with no internet connection.
- No size or daily limits No file caps, no paywalls — only your device memory.
- Private & safe Skip sketchy upload sites; nothing is sent to a server.
How it works
Muting is handled by ffmpeg compiled to WebAssembly and run inside your
browser. The tool uses -an to discard the audio track and -c:v copy
to keep the existing video stream exactly as it is, then writes an MP4 with
-movflags +faststart so it starts playing quickly. Because the video is never
decoded or recompressed, the operation is fast and lossless — and because it all happens on your
device, your file is never uploaded. The first run downloads the engine once (about 9 MB), then
caches it for offline use.
How to mute a video
- Choose a video with the drop zone above, or drag a file onto it.
- Press Mute video — there are no settings to fiddle with.
- Wait a moment while the audio is stripped on your device.
- Click Download to save your silent MP4.
Muting is near-instant because the video is copied, not re-encoded — even long clips finish quickly. The main cost is reading and writing the file in your browser.
Why mute locally instead of on an upload site
Online "remove audio" tools upload your full video to a server before they can touch it, which is slow, hands private footage to a third party, and sometimes adds a watermark or a length cap. Doing it in your browser is faster, keeps the video private, and adds nothing to the file. It also avoids the safety concerns around free file-handling sites — in March 2025 the FBI warned that some free online converter sites were being used to spread malware, so keeping the work on your own machine is the safer choice.
| Local (this site) | Typical cloud tool | |
|---|---|---|
| Upload required | No | Usually |
| File-size caps | None (device memory) | Common |
| Works offline | Yes, after first load | No |
| Files stay private | Yes — never sent | Sent to a server |
Common uses
Removing copyrighted background music before posting a clip, stripping noisy or accidental audio from a screen recording, silencing a video so you can add your own soundtrack later, or producing a clean muted loop for a website background. Because the picture is untouched, the muted file looks identical to the original.
More video & audio tools
Frequently asked questions
Why is muting almost instant?
Because nothing is re-encoded. The tool keeps the original video stream exactly as it is (stream copy) and simply drops the audio track, then writes the result. There is no frame-by-frame decoding and compressing, so even a long, high-resolution video is muted in moments — the time is mostly just reading and writing the file in your browser.
Is my video uploaded to remove the sound?
No. The whole operation runs locally with ffmpeg compiled to WebAssembly. Your file is read into the browser, the audio is stripped on your device, and the silent MP4 is written there for download. Nothing is sent to a server and no copy is stored online.
Does muting reduce the video quality?
No. Because the video stream is copied untouched, there is zero quality loss — the picture is bit-for-bit identical to the original. Only the audio is removed. The file also gets a little smaller because the audio data is gone.
Does this lower the volume or fully remove the sound?
It fully removes the audio track, so the result is completely silent — there is no hidden quiet track left behind. If you only wanted to lower the volume rather than remove it, this tool is not for that; it is designed to produce a clean, soundless video.
What formats can I mute, and what comes out?
You can load any video ffmpeg reads — MP4, MOV, MKV, WEBM, AVI and more — and the output is an MP4 with the original video stream and no audio. If a particular file’s video stream cannot be copied into MP4, you may need to convert it first with the Video Converter.
Does it work offline?
Yes. The site is a Progressive Web App, so it works without a connection after the first visit, and the ffmpeg engine is cached after its one-time download so muting keeps working offline.
All processing happens on Video Tools entirely within your browser. Videos are never uploaded to a server.