Does Fast Lossless Copy reduce video quality?

Not at all. Stream copy keeps every original video frame untouched and simply removes the audio track, finishing in seconds.

When should I choose Universal MP4 re-encode instead?

Use the MP4 re-encode option if your source uses an uncommon codec that does not play natively in your target app.

Does muting a video also reduce its file size?

Yes—removing the audio stream typically trims 5% to 15% off the total file size depending on audio bitrate.

Can I add speed adjustments after muting?

Yes, or you can use our Change Video Speed tool directly with its built-in Mute Audio option.

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Mute Video (Remove Audio)

Built for creators, social media managers, and engineers who want instant silent videos without degrading picture sharpness.

Drop an MP4, WebM, MOV, MKV, or AVI video here

Processed 100% locally in your browser via WebAssembly FFmpeg — zero server uploads

How to Use Mute Video (Remove Audio)

1Upload the video whose audio track you want to strip.
2Keep Fast Lossless Copy selected for instant zero-quality-loss muting.
3Click Mute Video to strip the audio stream locally.
4Preview the silent video and download immediately.

Key Features

Fast lossless stream-copy mode (-c:v copy -an)
Automatic fallback to universal H.264 MP4 re-encode when needed
Preserves 100% original video resolution and frame rate
Zero uploads and no watermarks

Removing Unwanted Audio Without Re-Encoding Video Frames

Most online editors re-compress your entire video just to delete a noisy microphone track, introducing blur and wasting minutes. ToolCix's Fast Lossless Copy mode copies the video stream byte-for-byte while dropping the audio stream (-an), preserving 100% of your original crispness.

Common Use Cases for Silent Video Clips

Silent looping MP4s are ideal for SaaS hero backgrounds, muted social B-roll, bug-reproduction screen captures, and removing background chatter before adding a fresh voiceover.