Device & typing tests
Quick checks before a call, an exam or a purchase: is the microphone picking you up, which resolution is the webcam really sending, does every key register, do both speakers work, are there dead pixels, and how fast do you type. The camera and microphone are used only while the page is open and nothing is recorded or sent.
Microphone Test
Check that your microphone works, see its level live and hear yourself back.
Webcam Test
See your webcam live and the resolution and frame rate it really delivers.
Keyboard Tester
Press every key and see which ones work, plus key codes and rollover.
Dead Pixel & Screen Test
Fill the screen with solid colours to spot dead or stuck pixels, and see your screen’s specs.
Speaker & Headphone Test
Check left and right channels, bass and the frequencies you can hear.
Typing Speed Test
Measure your typing speed in WPM and your accuracy, in 15 seconds to 2 minutes.
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Device & typing tests: common questions
Is my camera or microphone recorded?
No. The picture and sound are shown on this page only. The microphone test keeps a 5-second recording in the page’s memory only if you press Record, so you can listen back; it is gone when you close the page. Nothing is uploaded.
Why does the browser ask for permission?
Browsers never let a website use your camera or microphone without asking. Allow it for this site to run the test; you can withdraw it any time with the icon in the address bar.
The test cannot find my camera or microphone. What should I check?
Close other apps that may be using it (video calls, recording software), check the privacy settings of your operating system (Windows: Settings → Privacy → Camera/Microphone; macOS: System Settings → Privacy & Security), and make sure the device is plugged in and not muted.
Related guides
Dead Pixel vs Stuck Pixel: Check a Screen in 2 Minutes
How to spot dead and stuck pixels, backlight bleed and a wrong refresh rate on a new or used monitor, laptop or phone, and what you can do about each.
Read the guideMicrophone Not Working? A 5-Minute Fix Checklist
Fix a microphone that is not picked up in the browser, Zoom, Teams or Discord: mute switches, the right input, Windows and macOS privacy settings, and level checks.
Read the guideWhat Is a Good Typing Speed? Average WPM by the Numbers
The average typist manages about 52 words per minute, according to a study of 168,000 people. How WPM is measured, what counts as fast, and how to improve.
Read the guide