offlinewebtools.com — free, watermark-free browser tools that stay on your device with nothing uploading to our servers

Audio Loudness Normalizer

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

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.

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.