100% Local Processing — Your Files Never Leave Your Device
Audio Normalizer
Normalize audio levels using industry-standard LUFS — perfect for podcasts, music, and videos.
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100% Private
Audio is processed locally in your browser. Nothing is uploaded to any server.
Industry Standard
Uses LUFS normalization — the same standard used by Spotify, YouTube, and broadcast TV.
Multiple Formats
Works with MP3, WAV, M4A, FLAC, and can even extract audio from video files.
What is LUFS Normalization?
LUFS (Loudness Units Full Scale) is the modern standard for measuring perceived loudness. Unlike peak normalization which only looks at the highest sample, LUFS measures how loud audio sounds to human ears.
Common Standards
- • -14 LUFS: Spotify, YouTube Music
- • -16 LUFS: Apple Music, Podcasts
- • -23 LUFS: EBU R128 (EU Broadcast)
- • -24 LUFS: ATSC A/85 (US Broadcast)
Why Normalize?
- • Consistent volume across tracks
- • Meet platform requirements
- • Prevent clipping distortion
- • Professional-quality output