Microphone Tester Online
Use this free online Microphone Tester tool to connect microphone devices locally to measure volume levels and analyze signals.
How it works & FAQ
Why this is secure?
Microphone audio is captured by your browser's MediaDevices API and visualized locally. No audio data is transmitted to any server.
Step-by-Step Guide
- 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.
Frequently Asked Questions (FAQ)
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.
Your microphone audio is visualized locally in your browser. No audio is recorded or transmitted.