LUFS Meter — MusicKit.app

SHORT TERM

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LUFS

INTEGRATED

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LUFS

TRUE PEAK

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dBTP

MOMENTARY — LUFS

-60-50-40-30-20-100

ITU-R BS.1770-4 compliant loudness meter. Measures Momentary (400 ms), Short Term (3 s), Integrated (gated) LUFS and True Peak (dBTP) in real-time from your microphone or audio interface input. All processing runs in the browser — no audio is sent to any server.

Mac — On first use, macOS will ask you to allow microphone access for the browser. If denied, go to System Settings → Privacy & Security → Microphone and enable your browser. Then also allow in the browser popup.
Windows — Go to Settings → Privacy → Microphone and make sure both "Allow apps to access your microphone" and "Desktop apps" are turned on. Then also allow in the browser popup.
If previously denied, click the lock icon in the address bar → Microphone → Allow, then refresh the page.