When parts of a recording are loud and others are barely audible, this free audio normalizer scales the whole track so its loudest peak reaches full level, making a quiet recording louder without changing the balance between its loud and quiet parts. It helps lectures, podcasts, and voice notes play back louder from start to finish. Your audio never leaves your browser — nothing is uploaded, so your files stay private.

How to Use the Audio Normalizer

Drop a quiet file, bring its peak to full level, and download it.

1Choose your audio file

Drop your audio file into the box above, or click it to pick a file from your device.

2Normalize the peak level

Click Process audio and wait a moment while the track is scaled so its loudest peak reaches full level in your browser.

3Download the normalized audio

Download your audio at full peak level. That is all — no account, no watermark.

Why Choose Our Audio Normalizer

Built for full peak level, privately and free.

Full peak level

Scales the whole track so its loudest peak reaches full level, without changing the balance between loud and quiet parts.

Private by design

Your audio never leaves your device or gets uploaded anywhere.

Free to use

Normalize as many files as you like, at no cost.

Works everywhere

Any modern browser, on phone or computer.

Audio Normalizer FAQs

Short, direct answers to the questions readers ask most.

Yes, completely free, with no account and no hidden limits.

No. It only scales the whole track to full peak level; it cannot improve the original recording quality or even out loud and quiet parts.

No. Your original file is untouched; the normalized version is a separate download.

Yes. Open this page on your phone’s browser, pick an audio file, and download the normalized version.