Online Microphone Test Free, private mic check with live levels.

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Private: no recordings saved

Peak0% RMS0% Device

If the list is empty, grant mic permission first and reload.

Lower if the meter clips1.4×
Diagnostics
Secure context: checking…
Permission: checking…
Context: idle

If levels are flat, switch devices above or toggle Echo/Noise/AGC. On iOS, tap the mic and speak right away to wake audio.

Still stuck? Test another mic or check OS input settings.

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Quick start

1 Allow mic

Click the mic button and choose Allow in your browser prompt.

2 Speak

Talk at a normal volume—waveform and bars should move with your voice.

3 Adjust

Pick the right device, tweak sensitivity, and toggle Echo/Noise/AGC if needed.

What this mic test measures

Peak shows the highest instant level. RMS is the average loudness over time. Aim for strong RMS without constant 100% peaks. If peaks hit 100% and the sound distorts, lower sensitivity or move the mic farther from your mouth.

Privacy & permissions

Audio stays on your device and is processed in your browser. Nothing is uploaded or stored. To revoke access, open your browser’s site settings and remove the microphone permission.

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