What This Tool Does
This tool strips the audio track from your video file, leaving you with a completely silent video. Upload any common video format (MP4, MOV, AVI, MKV, WebM), and it outputs an MP4 with no audio stream at all — not just muted, but actually removed. The processing happens in your browser using WebAssembly, so your video never leaves your computer.
How It Works
- Upload your video: Select the file from your device. The tool reads it locally — no upload to any server.
- Audio track removal: The tool uses FFmpeg (compiled to WebAssembly) to demux the video, discard the audio stream entirely, and remux the video-only stream into a new MP4 container.
- Download: Once processing completes, download the silent video. The filename is prefixed with "silent-" for easy identification.
Because the audio is discarded rather than silenced, the resulting file is smaller than the original — you're literally removing data, not just adding a mute flag.
When You'd Actually Use This
Background video for presentations
You found the perfect B-roll clip but it has narration or music you don't need. Strip the audio so it doesn't clash with your own voiceover or presentation soundtrack.
Social media overlays
Instagram and TikTok creators often layer multiple video clips. Removing audio from underlying layers prevents muddy, overlapping sound.
Accessibility compliance
Some digital signage and kiosk displays require video content without audio. This tool creates compliant versions without needing professional editing software.
Stock footage prep
Downloaded a free stock video with unwanted ambient noise? Remove it before importing into your main project timeline.
Privacy protection
Sharing a screen recording that accidentally captured private conversations? Strip the audio entirely before sharing.
GIF alternative
Silent videos work like GIFs but with better compression. Remove audio from short clips for web use where sound isn't needed.
What to Know Before Using It
Output is always MP4: Regardless of your input format, the output will be an MP4 file. This is because the tool uses the MP4 container format for maximum compatibility.
File size limits depend on your browser: Since processing happens entirely in your browser, available memory is your limit. Chrome and Firefox typically handle files up to 2-4 GB, but older browsers or low-RAM devices may struggle with videos over 500 MB.
Processing time scales with file size: A 100 MB video might take 10-30 seconds. A 1 GB file could take several minutes. The progress bar shows real-time completion percentage.
Video codec is preserved: If your input is H.264, the output stays H.264. The tool doesn't re-encode the video stream — it just removes audio and repackages, which means no quality loss.
Multiple audio tracks: If your video has multiple audio streams (like a DVD rip with different language tracks), all of them are removed.
FAQ
Does this work on iPhone or Android?
Yes, but with caveats. Mobile browsers have stricter memory limits. Videos under 200 MB should work fine on modern devices (iPhone 12+, recent Android flagships). Larger files may crash the browser tab.
What's the difference between removing audio and muting video?
Muting keeps the audio stream but sets volume to zero — the data is still there. Removing audio deletes the stream entirely, resulting in a smaller file. For most use cases, removal is cleaner.
Can I extract the audio instead of removing it?
This tool only removes audio. For extraction, you'd need a separate audio extractor tool. The workflow would be: use an extractor to save the audio, then use this tool to create a silent video.
Why is my output file still large?
Video data is much larger than audio. A typical video file is 90-95% video stream, 5-10% audio. Removing audio saves some space, but the video stream dominates the file size.
Does this remove embedded subtitles or captions?
No. This tool only removes audio streams. Subtitle tracks (if present) are preserved in the output. If you need to remove subtitles, that requires a different tool.
Can I batch process multiple videos?
This tool processes one video at a time. For batch operations, you'd need to process each file sequentially. Consider desktop FFmpeg if you need to strip audio from dozens of files.
What happens if the video has no audio track?
The tool will still process it and output a video-only MP4. The result will be essentially identical to the input, just repackaged in an MP4 container.