Microphone Test
See your levels and hear yourself back.
Microphone Test shows a live input level meter and frequency display so you can see whether your microphone is picking up sound, and records a short sample you can play back to hear how you actually sound. Everything runs through the Web Audio API locally, and nothing is transmitted.
Loading Microphone Test…
Runs entirely on your device. No file or text you enter here is uploaded. How to verify it.
How to use Microphone Test
- Allow microphone access and choose an input.
- Speak and watch the level meter and spectrum.
- Record a few seconds and play it back.
Questions about Microphone Test
The meter shows nothing. What is wrong?
Check that the right input device is selected — laptops often default to a different one than you expect. Then check the operating system input level, and that the browser has microphone permission at the OS level, which is separate from the browser prompt.
What level should I aim for?
Peaks around −6 to −12 dB when speaking normally. Constantly hitting the top means clipping, which distorts and cannot be fixed afterwards. Barely moving the meter means the gain is too low and you will sound noisy.
Is my voice sent anywhere?
No. The audio is analysed in the page with the Web Audio API and the test recording is held in memory, then discarded. Nothing is uploaded.
Does it work with a Bluetooth headset?
Yes, once the headset is paired and chosen in the input list. Be aware that using a Bluetooth microphone usually switches the headset into a low-bandwidth call profile, so the playback sounds duller than the same headset does playing music — that is the profile, not a fault.
Can I test the microphone on a phone?
Yes, in Chrome on Android and Safari on iOS once microphone permission is granted. The meter and playback behave the same way; the phone may quietly route input to a connected headset, which is worth ruling out before you blame the microphone.
Is Microphone Test really free, with no limits?
Yes. There is no account, no daily cap, no file-size tier and no watermark, because there is no server cost to recover. The site is funded by clearly disclosed partner recommendations on the Partners page, never by metering the tools.
Are my files or text uploaded when I use Microphone Test?
No. Everything is processed by JavaScript running in your browser, on your device. You can verify it: open your browser's developer tools, switch to the Network tab, and use the tool. You will see no request carrying your data — because there is nowhere for it to go.