Free Online Mic Tester
Microphone Test
Check whether your microphone is detected and sending sound to the browser. Start the test, allow mic access, then speak to watch the live input meter.
The test runs locally in your browser and is useful before a meeting, recording, stream, class, or support call.
Live input meter
Speak and see whether the microphone level responds.
Audio Check
Test microphone input before it matters.
Use the live meter to confirm that your browser can hear the selected microphone. If the meter stays flat, check permission and system input settings.
See input volume change as you speak, clap, or tap near the microphone.
Keep an eye on the highest level reached during the current session.
The tool checks level locally and does not save or upload audio.
How to use the microphone test
Click Start Mic Test and approve the browser permission prompt. Speak at a normal distance. A working microphone should make the live level meter move. If it does not, select the right input device in your operating system and check whether the browser is allowed to use it.
What the live meter measures
The page requests an audio-only stream through the browser MediaDevices API, connects that stream to a Web Audio analyser, and converts the current waveform into a simple input-level percentage. The meter confirms that audio energy is reaching the page; it does not record a file, transcribe speech, rate sound quality, or identify the microphone model.
How to troubleshoot a flat or weak signal
First confirm that the browser tab has microphone permission and that the correct input is selected in the operating system. Then close meeting or recording apps that may hold the device, disconnect and reconnect USB or Bluetooth hardware, and repeat the test at a normal speaking distance. A moving but consistently low meter can indicate low system input gain, an unusually distant microphone, or aggressive noise suppression.
Privacy and limitations
Audio is processed in the active browser session to draw the meter. The page does not create or upload an audio recording. Browser audio processing, automatic gain control, noise cancellation, operating-system settings, and the selected input device can all change the displayed level, so use the meter as a functional check rather than a calibrated loudness measurement.
Microphone Test FAQ
Does this microphone test upload audio?
No. The page reads microphone level locally in your browser and does not upload recordings.
Why does the mic test need permission?
Browsers require permission before any page can access microphone input.
What should I do if the level does not move?
Check browser permission, operating system input settings, the selected microphone, and whether another app is using the device.