Browser Decibel Meter

Microphone level

Decibel Meter

Estimate microphone loudness in dBFS directly in your browser.

Current level-StatusStopped

Browser microphone readings are useful for relative level checks, not certified sound-pressure measurements.

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Open the tool and enter a value, tap a beat, or choose a local audio file.

The audio processing runs in your browser without uploading files.

Use the generated reading, tone, timing, or metadata result for quick checks.

Yes. It is free and runs in your browser.

No. Local files stay in your browser.

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Inspect duration, file size, channels, and sample rate from a local audio file.

Generate a simple test tone by frequency and waveform.

Tap along with a song or beat to estimate its BPM.

Play a simple browser metronome for practice, timing, and rhythm checks.