Keyboard Test Online
Press any key to verify it registers. Keys light up blue when active.
Focus window and press keys to test. Pressed keys turn blue.
What is keyboard test?
A keyboard test is a utility to verify the functionality of every key on your computer keyboard. Whether you have a mechanical keyboard, a laptop, or a wireless device, keys can sometimes fail due to dust, liquid damage, or switch degradation.
Our online keyboard tester visualizes your physical keyboard on screen. When you press a key, the corresponding virtual key lights up. This allows you to check for 'ghosting' (keys not registering), 'chattering' (double typing), or completely broken switches. It's an essential tool for gamers, typists, and anyone buying a used keyboard.
How to use keyboard test
- Step 1: Press every key on your keyboard one by one.
- Step 2: Watch the virtual keyboard. Keys will turn blue/green as you press them.
- Step 3: Check if any key fails to light up or lights up without being pressed (stuck key).
- Step 4: Test special keys like Shift, Ctrl, and Alt to ensure they trigger correctly.
Frequently Asked Questions
Why is one of my keys not working?
If a key doesn't light up, it could be a hardware issue (broken switch) or a software driver problem. Try cleaning the switch with compressed air first.
What is N-Key Rollover?
N-Key Rollover (NKRO) refers to the ability of a keyboard to register multiple key presses simultaneously. Our tool can help you detect how many keys your keyboard handles at once.