Microphone Tester Online
Connect microphone devices locally to measure volume levels and analyze signals.
Runs entirely in your browser
DB Level0
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How to use Microphone Tester
- 1Click 'Start Test' and allow microphone access when your browser prompts you.
- 2Speak or make a sound — the volume meter and waveform visualization show your microphone input in real time.
- 3Check that the meter responds to sound, indicating your microphone is working correctly.
Privacy & security
Microphone audio is captured by your browser's MediaDevices API and visualized locally. No audio data is transmitted to any server.
Your microphone audio is visualized locally in your browser. No audio is recorded or transmitted.
Frequently asked questions
Why is there no response when I speak?
Check that the correct input device is selected (if you have multiple microphones). Verify that your browser has microphone permission and the mic isn't muted at the OS level.
Can I test a headset microphone?
Yes — select your headset mic from the device selector dropdown if it's not selected by default.
How do I check mic sensitivity?
The volume bar shows the amplitude. A microphone that doesn't respond to loud sounds may need a sensitivity boost in your OS audio settings.