Remove audio from an MP4
Screen recordings pick up notification pings, background conversations, and the occasional muttered password reset question. Removing the audio track, actually removing it, means the sound is gone from the file rather than sitting there muted.
This tool re-encodes your MP4 locally with no audio source connected at all, so the output has no audio stream for anyone to un-mute. That's the difference between deleting the track and just turning the volume down.
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This is Mute Video / Remove Audio preconfigured for this task — open the full tool for every option.
How it works
Select a video and preview it locally.
Optionally trim to a range at the same time.
Export — the video is re-encoded with no audio track connected to the recorder.
The output is checked locally to confirm it decodes and matches the expected duration.
What the tool does
- Output contains no audio track (the recorder is never given one)
- Optional range selection during the same export
- Local real-time re-encode using the browser's encoder
How the result is verified
The output is re-decoded locally; duration is verified against the source or selected range, and the export pipeline is constructed with no audio source, so no audio packets exist to include.
Frequently asked questions
How is this different from muting in an editor?
A muted track is still data inside the file, and some players and editors expose it. Here the recorder is never given an audio source, so the output physically has no audio stream. The verification step confirms the file decodes and matches your selection.
Can I trim it at the same time?
Yes, set start and end points before exporting and the silent copy covers just that range.