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Add audio to video

Replace the original sound or mix your own music with it. Keep the complete video.

Inspect inputs

Add audio to videoReplace original soundMix with original sound

New audio volume · 50%Repeat new audioFade in · 0sFade out · 0s

Audio: MP3, WAV or M4A, up to 100 MB.

I have the right to use these video and audio files.

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Choose a video
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Inspect inputs
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Confirm and export

Use standard SDR video without transparency or independent subtitle/data tracks. Converter and loop preserve all supported audio tracks; merge and mixing export the confirmed track(s). Dimensions use compatible even pixels.

Common questions

Can I preview before signing in?

Yes. Files and settings stay in your browser until you inspect/export. After inspection, confirm the measured output before exporting.