How loud is your master?
See your track's loudness and how Spotify, Apple Music and YouTube will play it.
🔒 Your file never leaves your device: it is analyzed in your browser and not uploaded.
- Integrated loudness LUFS
- True peak dBTP
- Loudness range LU
- Loudest 3 seconds LUFS
- Sample peak dBFS
- Peak to loudness dB
On streaming services
| Service | Target | Change | Plays at |
|---|
Switch levels while it plays to hear how much each service turns it down or up.
Loudness over time
━ Short-term loudness (3 s)━ Integrated┅ −14 LUFS
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Create your free pageWhat the numbers mean
Integrated loudness (LUFS) is the average loudness of the whole track, measured the way streaming services do (ITU-R BS.1770 / EBU R128). Services turn tracks up or down to a target, so a louder master isn't louder for listeners. It just loses dynamics.
True peak (dBTP) is the highest level of the waveform between samples. Above −1 dBTP, encoding to AAC or Ogg can add distortion.
Loudness range (LU) is how much the loudness varies over the track. There's no right value: it depends on the genre.
Targets are the services' default settings as published or widely measured in 2026. They can change them, and listeners can change their settings.