Free Online Microphone Test
A live level meter shows whether your microphone is picking up sound.
What this tells you
- The bar moves when you speak — the browser is receiving audio from the microphone you picked. That is the whole test.
- The bar stays flat — your system is not sending audio. Check you chose the right microphone, that it is not muted in your sound settings, and that no call, game or other tab has taken it.
- It moves, but barely — input gain is low. Raise it in your system sound settings rather than speaking louder.
- Playing back what you hear — needs headphones. On speakers the sound loops back into the microphone and howls.
- The waveform says more than the bar — a flat line with fuzz on it is background hiss; a wave with its tops flattened off is an input turned up too far; a steady repeating shape while you are silent is usually electrical hum from a cable or a charger.
- Record a few seconds and listen — this is the test that actually settles it. A moving meter only proves the browser is receiving something; hearing yourself proves the microphone is picking up your voice, at a usable level, without the room swallowing it.
Your audio is analysed locally and never uploaded.
Talk, and watch the bar move: that confirms the right microphone is selected and it’s actually picking up sound, before you join a call or hit record somewhere else.
Audio is analysed locally in your browser to draw the level meter; it is never uploaded or recorded, unless you turn on “Play back what I hear”, which just routes it to your own speakers.
How to use it
- Click “Start microphone” and allow access when your browser asks.
- Talk normally and watch the level bar move.
- Switch microphones from the list if you have more than one connected.
Frequently asked questions
Is my audio recorded or sent anywhere?
No. It’s analysed locally to draw the level bar, that’s all — unless you enable playback, which just plays it back through your own speakers.
The bar isn’t moving at all.
Make sure the right microphone is selected in the dropdown, check it isn’t muted at the OS level, and confirm no other app has exclusive access to it.
What does “Play back what I hear” do?
It routes your microphone straight to your speakers so you can hear yourself, useful for checking sound quality. Use headphones when this is on, otherwise you’ll get feedback/echo.
Why does the browser ask for permission again on other sites?
Microphone permission is granted per website for privacy reasons, so it has to be approved separately here even if you’ve allowed it elsewhere.
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