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Audio Loudness Normalizer

Normalize podcasts or music stems to common LUFS loudness targets using FFmpeg inside your browser.

What this tool does

Audio Loudness Normalizer helps you normalize podcasts or music stems to common LUFS loudness targets using FFmpeg inside your browser.

What you get

Audio Loudness Normalizer produces a direct output in this page and keeps all processing on your device, with nothing uploaded to our servers.

Free to use, no watermarks, runs in your browser—nothing uploads to our servers

Source file *

Files are processed locally in your browser using WebAssembly. This input is required.

Saved FFmpeg presets (stored locally)

Saved presets

Preset name

Target LUFS (I)

True peak (TP)

Loudness range (LRA)

Report a bug

If this tool misbehaves, share a quick summary so we can investigate. We include the tool URL automatically—no need to copy and paste.