Quick checks for every device
Before a video interview, an online exam or a gaming session, it only takes a minute to make sure everything works. These free tests check your keyboard keys, mouse buttons, microphone, webcam, speakers and internet speed right in your browser — on a laptop, desktop, Chromebook, Android phone or iPhone.
Buying a used laptop or keyboard? Run the Keyboard Tester and Mouse Click Test to find dead keys and worn buttons before you pay. Working from home? The Mic, Webcam, Speed and Ping tests show if your setup is ready for Zoom, Teams or Google Meet. New monitor? The Dead Pixel Test and Refresh Rate Test check the screen in seconds, and What Is My IP shows if your VPN works. Gamers can check controllers for stick drift with the Gamepad Tester, and the Touchscreen Test finds dead zones on phones and tablets.
Troubleshooting guides
- Laptop Keyboard Not Working? How to Find and Fix Dead Keys
- Microphone Not Working on Windows 11 or 10 – 9 Quick Fixes
- Mouse Double-Clicking on a Single Click – How to Test and Fix It
- Webcam Not Working or Not Detected – How to Fix It
Frequently asked questions
Are these device tests free?
Yes. All tests are free, need no sign-up and run in your web browser on Windows, Mac, Linux, Android and iPhone.
Do I need to download anything?
No. Everything works in your browser. For the mic and webcam tests your browser asks for permission first.
Is my microphone or camera recorded?
No. Sound and video are shown only on your screen and are not recorded or uploaded.
Which test should I run before a video call?
Run the Mic Test, Webcam Test, Speaker Test and Internet Speed Test — together they take about two minutes.
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