MP4 → MP4
Normalize Audio Volume
Normalize audio volume levels in your browser with local processing, without uploads or watermarks.
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Normalizes perceived loudness to broadcast standard (-16 LUFS). No settings needed.
Automatically detects and removes letterbox black bars from all sides.
Drop a video file to view its codec, resolution, duration, and file size.
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Your files never leave your browser
Frequently asked questions
What does normalizing audio do?
It adjusts the volume so quiet and loud parts are more consistent, making the audio easier to listen to.
Are my files uploaded?
No. Everything runs locally in your browser. Your files never leave your device.
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