Audio Normalizer
Even out loudness so your audio plays at a consistent, professional level.
Drop a file here or click to choose Tap to choose
MP3, WAV, FLAC, M4A, OGG
On phones this downloads a ~30 MB engine on first use and can be slow or run out of memory on large files. Smaller files work best on mobile.
file
Output is MP3 at 192 kbps. Lower (more negative) LUFS is quieter.
Free Online Audio Normalizer — Consistent Loudness
Tired of tracks that are too quiet, too loud, or all over the place? Audio normalization adjusts the overall loudness to a consistent target measured in LUFS — the same standard Spotify, YouTube, Apple Music and podcast platforms use. The result sounds polished and plays at a steady level next to other content.
This uses FFmpeg's broadcast-grade loudnorm filter, entirely in your browser — your audio is never uploaded.
How it works
Drop your file
Choose any audio file. It's processed locally and never uploaded.
Pick a target
Choose the LUFS target for your platform — streaming, podcast or broadcast.
Normalize & download
Click normalize and download your level-corrected MP3.