Volume Normalizer and Audio Booster

Normalize loudness or boost quiet audio online with in-browser processing that keeps your files private.

Illustration of a tray with an arrow pointing up to symbolize uploading audio files.Click or drop files to uploadProcessed on your device. Nothing is uploaded.

Conversion Settings

Volume Control

(Choose One)

Adjust overall volume of your audio.

Choose your settings now, then add a file above to enable Convert.
About this tool, tips & FAQ

What does LUFS mean and why is it important for volume normalization?

LUFS stands for Loudness Units relative to Full Scale and measures perceived loudness. Our normalizer targets a consistent LUFS level so quiet parts are boosted and loud segments stay within a predictable range without clipping.

How does normalization differ from compression?

Normalization adjusts the overall gain to meet a LUFS target without changing the dynamic range, whereas compression applies ratio-based gain changes to reduce peaks and lift quieter moments. You can normalize before using more advanced tools if you need to preserve dynamics while achieving consistent loudness.

Which file formats are accepted for normalization in this workflow?

We accept common audio formats like MP3, WAV, M4A, FLAC, and OGG, as well as most standard video containers. Upload your files directly through the drop zone to normalize loudness in the browser with LUFS-aware processing.