Audio Normalizer
Normalize audio loudness to broadcast standard (EBU R128). Smooths volume across entire file.
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Subtitle: SRT, VTT, ASS, TXT, CSV · Video: MP4, MKV, WebM, MOV · Audio: MP3, WAV, AAC, FLAC · Free, no sign-up
How to use this tool
Three easy steps. No sign-up needed for your first file.
Upload file
Video or audio. Normalizes volume across entire file.
Set target loudness
Default -23 LUFS (broadcast standard). Adjustable -16 to -24 LUFS.
Download normalized file
Consistent volume throughout — no more quiet-then-loud sections.
Frequently asked questions
What is LUFS normalization?
How is this different from compression?
Will this fix quiet recordings?
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First file free — no sign-up. Create a free account to unlock all features, larger files, and 5 free credits.