Free online LUFS checker
Upload a track and get its integrated LUFS (ITU-R BS.1770-4), short-term loudness, loudness range (EBU R128), and 4× oversampled true peak — measured the same way streaming platforms measure it. Then see exactly how far you are from your genre's loudness target and what to change.
What you get
- Integrated LUFS, LRA, and true peak (dBTP) via broadcast-standard metering.
- Compared against streaming targets — Spotify/YouTube −14, Apple −16 — and your genre.
- Tells you not just the number but whether it's a problem and how to fix it.
- Free, no signup, no install — runs in your browser.
Questions
What LUFS should I master to?
For most streaming, −14 to −10 LUFS integrated is the modern competitive range. Genre matters — Unveil scores you against your genre's actual target rather than one global number.
How is true peak measured?
4× polyphase oversampling per ITU-R BS.1770-4 Annex 2, so inter-sample peaks that clip after lossy encoding are caught.