Frequently Asked Questions (FAQ)
Your questions about keyboard testing answered. Find information on our key test tool, how to use it, and advanced topics like the keyboard polling rate test.
What is the purpose of this Online Key Tester?
This is a free tool for testing a keyboard directly in your browser. It helps you diagnose hardware issues like dead keys, stuck keys, or incorrect inputs without installing software. It's an essential keyboard checker for gamers, programmers, and anyone experiencing keyboard problems.
Is this keyboard test private?
Yes. The entire key test runs on your computer. We do not log, store, or transmit your keystrokes. Your privacy is 100% guaranteed during your keyboard testing session.
How can I test for keyboard ghosting?
To test for ghosting, press multiple keys simultaneously (e.g., Shift + W + Space). Our virtual keyboard will light up every key that is successfully registered. If a key you are holding down does not light up, your keyboard is ghosting on that combination.
Does this tool perform a keyboard polling rate test?
This tool is designed as a keyboard key tester to check for functionality and ghosting, not for measuring polling rate. A keyboard polling rate test measures how often your keyboard sends signals to the computer (e.g., 1000Hz). While our tool can help identify severe input lag, specialized software is required for precise polling rate measurements.
Can I use this tool as a shiftkey test?
Absolutely. You can use our tool to specifically test the shiftkey, Ctrl, Alt, or any other modifier key. Simply press the key and watch it light up on the virtual keyboard to confirm it works. It is an effective keyboard button tester for every single key.