Online Decibel Meter

✓ Free Online Decibel Meter & Noise Level Tester

Measure ambient noise levels in your browser using your microphone — free, private, and instant.

🔊 Real-Time dB Reading — Large live decibel value driven by your microphone, updated smoothly via the Web Audio API.
🎯 Arc Gauge & Pointer — A color-coded gauge (green to red) and level bar make loudness easy to read at a glance.
📊 Current, Average & Peak — Track the current level plus running average and maximum, with one-tap reset.
🗣️ Noise Level Guide — Plain-language labels like Quiet, Conversation, Noisy or Harmful help you interpret the numbers.

⚠️ JavaScript is required This tool runs entirely in your browser and needs JavaScript. Please enable JavaScript, or open this page in a modern browser with JavaScript support, to use all features.

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