Is this audio normalizer really free?

Yes. The Darksteady Hub audio normalizer is 100% free with no sign-up, no watermark, and no export limits. It runs entirely in your browser, so files never leave your computer.

What's the difference between Peak and LUFS normalization?

Peak normalization sets the loudest single sample in each clip to a target level, which is fast but doesn't always sound consistent. LUFS (loudness) normalization measures perceived loudness across the whole clip, so clips from different sources actually sound equally loud side by side — this is the same approach streaming platforms and podcast hosts use.

Can I normalize many clips at once?

Yes. Drop in as many clips as you want, set one target level, and click Normalize All. Every file is processed and packed into a single ZIP download using the same filenames you uploaded.

Will normalizing cause clipping or distortion?

No. Clip protection is on by default, so if boosting a quiet file would push it past a safe ceiling, the gain is automatically capped to stay clean instead of distorting.

Free Audio Normalizer Online

Batch-match the loudness of dozens of clips and export them all at once.

Click or drag audio files here

Add as many clips as you need — you'll normalize and export them all together.

Normalization Target

Loudness (LUFS) Peak

Target loudness

LUFS

Prevent clipping — caps the gain instead of distorting quiet clips

Preview

Select a clip from the queue to preview it.

Export

Output format

WAV MP3

MP3 Quality

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