How is this different from Windows's built-in Test your microphone?

Windows's built-in input test mainly shows a percentage, while this page displays your voice as a waveform, making it intuitive to see whether it is registering.

Is my voice sent or saved anywhere?

No. The check happens entirely inside your browser and is never sent over the internet.

What if I have multiple audio input devices?

Starting the mic check shows a Manage input devices menu where you can switch between connected microphones.

Windows 11 Mic TestAudio input device check

Speak into your microphone and see, visually, whether it registers. No install, free.

This page never sends your microphone audio outside your PC.
The check happens entirely on this device. Please use it with peace of mind.

For streaming and recording, if you want to measure volume numerically in dBFS, try the pro measurement page (sndchkpro).

When you press the button, your browser will ask "Allow this site to use your microphone?"
Choose "Allow" to start the check.

⚠️ Nothing is getting throughTry speaking into your microphone. If nothing changes, see the checklist below

Now
0% Max
0%

When you speak into your microphone, the line will ripple and the bar on the right will rise. The numbers show mic volume as a rough percentage; “Max” is the highest since you started this check. The judgment above also stays at the best result reached; press "Reset" to start over.

🔊 Listen to your own voice (check by ear)

🔁 Add a 1-second delay

Check this to hear your mic in real time. Add "1-second delay" to hear your own voice returned after 1 second. 🎧 Using headphones or earphones prevents feedback (howling/squealing).

You can also test your microphone on this page.

How to test an audio input device on Windows 11

Windows 11's own "Settings → System → Sound → Input" also has a built-in mic test, but it only shows a percentage, which can make it hard to intuitively tell whether your voice is really getting through. On this page, your voice appears directly as a waveform, so you can see at a glance whether it's registering.

Press "Start Mic Check" and choose "Allow" in your browser's prompt.
Speak into your microphone in your normal voice.
If "✅ The microphone is registering" appears and the waveform moves, that audio input device is working normally.
If you have multiple microphones connected, use the "Manage input devices" menu above to switch and try each one.

Fixes when Windows 11 doesn't detect a microphone or no sound comes through

① Browser microphone permission — Click the 🔒 (or microphone icon) in the address bar and check whether this site's microphone is set to "Allow". If it's "Blocked", switch it to Allow and reload the page.
② Is the correct default device selected? — Open "Settings → System → Sound → Input" and check that the microphone you want is selected. Windows 11 can recognize multiple audio input devices at once (built-in mic, USB mic, Bluetooth earbuds, etc.), so if the wrong one is set as default, sound won't come through. Switching devices in the "Manage input devices" menu above is a quick way to test.
③ Is the microphone disabled? — In "Settings → Privacy & security → Microphone", check that "Microphone access" is turned on. If it's off, no app can use the microphone at all.
④ Input volume and microphone boost — In the advanced settings under "Settings → System → Sound → Input", check that the input volume isn't at 0 or extremely low. If your voice is still faint, raising "Microphone Boost" can help (raise it gradually, since too much boost adds noise).
⑤ Drivers and the Windows Audio service — If the audio input device doesn't even appear in the list, updating drivers or restarting your PC can help — a restart resets audio-related services and can trigger re-detection.
⑥ Using a 3.5mm plug-in-power condenser microphone? — These microphones run on a small amount of power supplied through the connector. Using an extension cable, or a longer cable overall, can make the sound very quiet or add noise (possible causes include a mismatched extension cable (mixing up 3-conductor and 4-conductor plugs is a very common mistake), signal loss over distance, insufficient power reaching the microphone, or noise from an extra connection point — how much power a PC supplies varies by model, so the same cable can affect one microphone but not another). Try connecting directly without the extension, or try a different cable.

If it still says "⚠️ Nothing is registering yet" after checking all of the above, the microphone or its cable is likely faulty. Trying the same microphone on a different PC or phone can help confirm whether it's actually broken.

Frequently asked questions

Q. How is this different from Windows's built-in "Test your microphone"?: A. Windows's built-in input test mainly shows a number (%), while this page displays your voice as an actual waveform, making it intuitive to see whether it's registering at all. Use whichever suits your needs.
Q. Is my voice sent or saved anywhere?: A. No. The check happens entirely inside your browser and is never sent over the internet.
Q. What if I have multiple audio input devices?: A. Starting the mic check shows a "Manage input devices" menu where you can switch between connected microphones. Check this alongside Windows 11's own default device setting.
Q. It still says "⚠️ Nothing is registering yet".: A. Try the fixes above, from the top. A settings issue is very often the cause.