Microphone test
Find out whether your microphone works — watch the level, hear yourself, record a clip and play it back. The audio stays on this device.
Test your microphone
Test your microphone here
Pressing the button asks your browser for microphone access. The audio stays on this device — nothing is sent to a server.
Your browser will ask — that dialog is the browser's, not ours
Speaker and headphone test
The fault may be your output, not your microphone. This test needs no permission — press a button and check whether you hear the tone. Left and right separately, because one dead channel is a very common fault.
The tone is deliberately quiet, but check your volume first if you are wearing headphones.
Frequently asked questions
The level meter does not move — what now?
It is almost always one of three things. A hardware mute: many USB microphones and laptop keyboards have their own mute switch, and the browser cannot see it. The wrong device: try another entry in the list above, because systems tend to make the most recently connected device the default. Or the input level in your operating system's sound settings has been turned down to zero.
My microphone works but they still cannot hear me — why?
When that happens the fault is usually your output or the call application's own setting. Run the speaker test above first: if you hear no tone, your system is sending audio to the wrong device — an HDMI monitor, or a Bluetooth headset that has drifted out of range. If you do hear the tone and the level meter on this page moves, your microphone is genuinely fine — check the microphone selection and the mute button inside Zoom or Meet, because those are configured separately from the browser.
Is my audio sent anywhere?
No. Every measurement and every recording happens inside your browser; no audio is uploaded. Recordings live in temporary in-memory URLs and disappear when you close the page. No analytics service on this site touches the audio.
I refused the permission by accident — how do I undo it?
The browser remembers that answer for the site, so it will not ask again. Click the lock or settings icon in the address bar, find the Microphone entry and set it to Allow, then reload. In Chrome the same setting lives under Settings → Privacy and security → Site settings → Microphone.
It says the device is busy — why?
Another application is holding the microphone. On some systems only one application can open it at a time, so close Zoom, Google Meet, Telegram or OBS completely — closing the window is often not enough, because the application keeps running in the background.
What does turning off echo and noise suppression do?
Browsers switch on three filters by default: echo cancellation, noise suppression and automatic gain. They are built for calls, and they can strip the top end off your voice and push the level up during silences. Recording with them off tells you what your microphone actually sounds like — which is what matters for a podcast or any real recording.
What counts as a good level?
While you are speaking, the average should sit in the green band between -18 and -12 dBFS, and the peak should never touch 0. Those numbers are the recording industry's: quieter and a call application amplifies you along with your room; louder and the loudest moments are clipped flat and the sound is damaged. That is why the peak gets its own marker.
Where are my recordings stored?
Only in the memory of the open page. The last 10 stay in the list and older ones are discarded automatically. Press download to keep one — it saves to your computer as WebM, or whichever container your browser supports.