How to Remove Audio from Video (Free, No Upload)

To remove audio from a video, drop your file into a browser-based tool that strips the audio track and re-exports just the video. PixelTools' [Remove Audio from Video tool](/remove-audio-from-video) does this entirely in your browser using ffmpeg.wasm, so the file never leaves your device. It accepts MP4, MOV, WebM, MKV, and AVI, and always outputs a clean MP4 with no sound. Because it stream-copies the video track instead of re-encoding it, there's no quality loss and it finishes in seconds even on long files — no waiting on a server, no account, no watermark.

There are a handful of common reasons to mute a video entirely rather than just lowering the volume. You might want to lay your own voiceover or a licensed music track over the footage, which only works cleanly if the original audio is gone first. Screen recordings often pick up keyboard clicks, fan noise, or a stray notification sound that's easier to delete than to edit around. Some clips have background music you don't have rights to, and platforms that scan for copyrighted audio can flag or mute a post automatically — removing it before you upload sidesteps that risk. And silent, loop-style clips (the GIF-like videos common on some social feeds) simply don't need an audio track at all.

Open the [Remove Audio from Video tool](/remove-audio-from-video), drop in your file, and it processes immediately. Since everything runs on WebAssembly inside your browser tab, there's no upload step and no queue — the tool reads the file's video stream and copies it straight into a new MP4 container without touching a single video frame, discarding only the audio track. That stream-copy approach is why it's fast: re-encoding a video is CPU-intensive and can take minutes, but copying an existing stream is closer to instant. When it finishes, download the muted MP4 directly from the page.

The tool accepts MP4, MOV, WebM, MKV, and AVI as input — the formats most phones, cameras, and screen recorders actually produce. Regardless of what you upload, the output is always MP4, since it's the most widely compatible container for sharing, embedding, or re-uploading elsewhere. If your source file is already MP4, the process is a straightforward audio strip; if it's MOV, WebM, MKV, or AVI, the tool also handles the container conversion as part of the same step, so you don't need a separate converter first.

Re-encoding a video means decompressing every frame and compressing it again, which can introduce a small amount of quality loss even at high settings and takes real processing time. Removing audio doesn't require touching the video data at all, so the tool stream-copies the existing video track byte-for-byte into the new file and simply omits the audio stream. That means the output video is identical in quality to the source — same resolution, same bitrate, same codec — and the whole operation is limited mainly by how fast your browser can read and write the file, not by video encoding speed.

Because the tool runs client-side with ffmpeg.wasm, your video is processed entirely inside your browser tab and never sent to a server. That matters if the footage is personal, unreleased, or belongs to a client — there's no third-party storage to worry about and nothing left over to delete afterward once you close the tab. It also means there's no file-size upload limit tied to a server queue; processing time depends on your own device rather than a remote connection.

Most video editors — iMovie, DaVinci Resolve, Premiere, CapCut — let you mute or delete the audio track manually, but that means opening a full editing app for a one-step task. On the command line, ffmpeg can do it directly with `ffmpeg -i input.mp4 -c copy -an output.mp4`, where `-an` drops the audio stream and `-c copy` stream-copies the video so nothing gets re-encoded — the same underlying approach the browser tool uses. If you don't have ffmpeg installed or don't want to deal with a terminal, a browser-based tool gets the same result without any setup.