Question 1

How do I make my audio louder online?

Accepted Answer

Drop the file here, pick a loudness target, and download. The tool measures the file's integrated LUFS per ITU-R BS.1770, applies exactly the gain needed to hit your target, and exports a WAV. If full gain would push true peaks past -1 dBTP it applies the maximum clean gain instead and tells you - honest normalization, not a clipper.

Question 2

What loudness should I normalize to?

Accepted Answer

-14 LUFS matches Spotify and YouTube playback level, -16 matches Apple Music, -18 is a common podcast level, -23 is the EBU broadcast standard. For music going to streaming platforms, normalizing is usually unnecessary (the platforms do it themselves) - this tool shines for podcasts, voiceovers, lecture recordings, and matching levels across a batch of files.

Question 3

Why did it apply less gain than needed?

Accepted Answer

Gain moves peaks and loudness together. If your file needs +8 dB to reach the target but its true peak is already -5 dBTP, +8 dB would clip; the tool applies +4 dB (peak to -1 dBTP) and reports the shortfall. Getting the rest requires limiting/compression, which changes the sound - do that deliberately in an editor, not silently in a normalizer.

Question 4

Is this the same as what Spotify does?

Accepted Answer

Same measurement, same idea: Spotify turns tracks down (and sometimes up) to about -14 LUFS at playback. The difference: this tool bakes the change into the file itself, which is what you want for podcasts, DJ sets, and anywhere no normalizer runs.

Question 5

Is my file uploaded?

Accepted Answer

No - measurement and rendering happen in your browser with the Web Audio API. Nothing leaves your device, and the page works offline once loaded.

Volume Normalizer

Normalization done honestly