Free · Private · In-browser

Audio Normalizer

Bring any recording up to a consistent loudness. We measure the peak level, apply the right gain, and export a clean WAV — no server, no upload.

Drop an audio file here, or click to browse

MP3, WAV, OGG, or M4A — processed entirely in your browser

About this tool

Normalize audio to a target loudness level (for example -14 LUFS for streaming platforms) using the Web Audio API. Supports MP3, WAV, and OGG — processed fully on your device.

Uneven volume across recordings is a common problem for podcasters and content creators. This normalizer applies gain to reach a consistent target loudness, using standard loudness targets that match popular streaming specifications. Because it runs in your browser, your audio never leaves your machine.

Why use it

Professional, consistent loudness without expensive audio software or uploads — perfect for polishing podcasts, voiceovers, and music for the web.

How it works

  1. Load your audio file.
  2. Set the target loudness level.
  3. Export the normalized file.

Frequently asked questions

Is my audio uploaded?

No — normalization uses the Web Audio API entirely locally.

What loudness target should I use?

-14 LUFS is a common target for streaming platforms; you can set other values too.

Which formats are supported?

MP3, WAV, and OGG for input, with MP3 export.

All processing on this page happens locally in your browser — your files are never uploaded to a server.

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