Loudness Normalizer
Normalize any track to a streaming LUFS target with a true-peak-safe ceiling, then download the WAV. 100% in your browser, nothing uploaded.
How loudness normalizing works
Streaming platforms play everything back at a fixed loudness. Spotify and YouTube aim for roughly -14 LUFS, Apple Music for about -16 LUFS, and they turn each track up or down to get there. If you deliver a file already at the target, the platform barely touches it, so your track sits at a predictable level next to other releases instead of jumping out or disappearing. This tool measures your file's integrated loudness (ITU-R BS.1770, the same standard the platforms use), works out the gain needed to reach your chosen target, and applies it. If turning the track up would push its peaks past the ceiling, a peak limiter holds the ceiling while the rest of the track comes up. You then download a clean WAV, created entirely on your device.
Normalizing is a level change, not a rescue. It won't fix a muddy low end, a harsh top or a lifeless, over-compressed mix — that's what mastering is for. And a very dynamic track may not reach a loud target without audible limiting, which is a good sign it deserves real mastering rather than a blunt volume bump. If you want tone balancing, dynamics control and a proper true-peak-safe limiter — plus a measured report you can verify — run it through TrackGleam's free mastering instead. For choosing the right number, see what LUFS to master to.
More free tools
FAQ
What does normalizing audio to -14 LUFS do?
It sets the overall level so the track measures -14 LUFS integrated — the level Spotify, YouTube and others normalize playback to. Matching it up front means the platform adjusts your track less, so it sits at a predictable loudness.
Does this upload my audio file?
No. The file is decoded, measured, normalized and encoded entirely in your browser. Nothing is sent to a server, and the WAV is created locally on your device.
Is normalizing the same as mastering?
No. Normalizing only changes the level to hit a loudness target with a safe peak ceiling. Mastering also balances tone, controls dynamics, and adds density and polish.
Why can't a quiet, dynamic track reach the target without limiting?
Turning a track up raises its peaks too. Once the loudest peak hits the ceiling, more gain would clip, so a limiter holds the ceiling while the rest comes up. Very dynamic tracks may not reach a loud target cleanly — a sign they're ready for real mastering.