Keyboard test
Press any key to see it register. Free, private, nothing to install.
Press any key. Grey is not pressed yet, green was registered, blue is held now. This needs a physical keyboard.
Related tools
Test click speed
Click as fast as you can for 5, 10, or 30 seconds and get your clicks per second.
Test reaction time
Click when the screen turns green and get your reaction time in milliseconds, averaged over five rounds.
Test speakers
Play a beep on the left speaker, the right speaker, then both, to check channels and wiring.
What the keyboard test shows you
Full-size layout
Function row, main keys, navigation cluster and numpad, so every key on a standard keyboard has a spot.
Rollover counter
Shows the most keys your keyboard reported at once during the test.
Instant feedback
Keys light up on press and release with no delay or button to click.
Private, nothing uploaded
The test runs in your browser tab. No file, key press, click or sound leaves your device.
Test your keyboard in three steps
- 1
Click the page and start typing
Press any key. Each one lights up the moment the browser receives it.
- 2
Work through every key
Green keys registered, grey keys have not been pressed yet. The counter shows how many of the board's keys you have tested.
- 3
Try pressing several at once
Hold a group of keys together to see the most keys your keyboard reports at one time, then press Reset to run it again.
When a keyboard test helps
A quick check settles most keyboard doubts in under a minute, before you return a board or blame the software.
Checking a new or used keyboard
Run through every key before the return window closes, or before you buy a second-hand board.
Diagnosing a sticky or dead key
Find out whether a key that feels wrong actually fails to register, and whether it stays down after you let go.
Comparing gaming keyboards
Hold WASD with Space and Shift to see whether the combinations you play with all get through.
Checking a laptop after a spill or repair
Confirm that every key still works after cleaning or replacing the keyboard.
Frequently asked questions
How do I know if a key on my keyboard is broken?
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Press it. If it turns green here, the browser received it, so the key and the switch work. If it never lights up after several firm presses, it is not sending a signal. Try it in another app too, because a few keys are reserved by the operating system.
Why do some keys not show up in the test?
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Browsers cannot see every key. Fn, brightness and volume keys, the Windows key combinations, and shortcuts like Alt+Tab are usually handled by the operating system or the keyboard itself before the page gets them. PrintScreen may only report on release on some systems.
What is key rollover?
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Rollover is how many keys a keyboard can report at the same time. Many basic USB keyboards report six regular keys plus modifiers. Gaming keyboards often advertise N-key rollover, meaning every key can register together. The 'most keys held at once' counter shows what your keyboard reported during your test.
What is keyboard ghosting?
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Ghosting is when pressing certain combinations makes the keyboard report a key you did not press, or drop one you did. It comes from the way cheaper keyboards wire their key matrix. Hold the combination you care about, such as W, A and Space together, and see whether all of them light up.
Does this work on any keyboard layout?
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Yes. The board is labelled with a US layout, but each key is recognised by its physical position. On an AZERTY or QWERTZ keyboard the key in the Q position still lights the Q key on screen, and the 'last key' box shows the character you actually typed.
Is anything I type recorded?
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No. Key presses are handled in your browser and are never sent anywhere. Reloading the page clears the test.
Test your keyboard now
Free, no account needed.