Keyboard Tester - Test Every Key Online

How to use the keyboard test

The page records the keyboard events your browser receives. It does not install a driver, change your layout or remap your keys, so it is a quick way to check whether a key reaches the page at all.

Activate the test. Click the keyboard panel or press Start test. The panel takes keyboard focus so the page can record key presses without changing your keyboard settings.
Press each key. Press every key once, including modifiers, function keys, navigation keys and the numpad where your keyboard has one. A working key lights up while held and stays marked as tested after release. Check Tab last because it moves focus and ends the test.
Check the gaming keys. Use the gaming key checklist for WASD, Space, Shift, Ctrl, Q, E, R, F, G, 1-5, Tab and Esc. This is the fastest way to check the keys most FPS players use.
Test rollover. Hold a combo such as W + A + S + D + Shift + Space. The held count and max-held count show how many keys reached the page at the same time.
Reset and compare. Use Reset to clear the results. If a key looks unreliable, repeat it a few times and try another browser or USB port before deciding the keyboard is faulty.

What the test checks

Letter, number, punctuation and symbol keys.
Shift, Ctrl, Alt, Windows and Menu modifiers.
Function keys, Escape, Tab, Caps Lock and Backspace.
Navigation keys and arrow keys.
Numpad keys where your keyboard has a numpad.
Press counts, held keys and maximum simultaneous keys.
A gaming checklist for the keys FPS players bind most often.

Why key rollover matters for gamers

Rollover is the number of keys a keyboard can report while several are held at the same time. Ghosting is what happens when a combination produces an extra key or drops one. Both matter in games where you hold movement keys while pressing an ability, crouch, jump or weapon slot.

The rollover check shows what the browser received, not what the keyboard's switches are capable of in isolation. Your operating system, keyboard firmware, connection type and active profile can all affect the result. Use it as a practical check, not a lab test.

What this test cannot detect

Switch actuation force, travel, feel or sound.
Keyboard polling rate, scan rate or input latency.
Whether a wireless connection is stable over time.
Media keys or macro keys that the browser never receives.
Every intermittent hardware fault; a key can work most of the time.
Whether a key repeats because of the switch, firmware or an operating-system setting.

If you need to check a mouse instead, use the mouse button test. For pointer accuracy, use the DPI analyzer.

If a key does not register

Click the panel again and press the key a few times.
Try another browser to rule out a browser-specific issue.
Try another USB port, cable or wireless receiver.
Open your keyboard software and check the active profile and remapping.
Check Fn-lock, function-row mode and the operating-system keyboard layout.
Test another keyboard to see whether the problem follows the device.

A key that is remapped to a macro or media action may never appear as the key you expect. That is not automatically a hardware failure. Compare the result with the key's behavior in your keyboard software and in a text editor.

Keyboard test vs mouse test vs DPI analyzer

A keyboard test checks whether keys register and how many keys can be held together. A mouse test checks buttons and scroll directions. A DPI analyzer measures how many counts a mouse reports over a known distance. They answer different hardware questions.

If both input devices look correct but your aim still feels inconsistent, read raw input and mouse acceleration and the sensitivity guides before changing your settings. You can also calculate eDPI or open the sensitivity converter.

FAQ

How do I test my keyboard online?

Click the test panel, then press each key once. Working keys light up while held and stay marked as tested after release. The progress panel shows how many keys you have checked.

How do I test keyboard rollover or NKRO?

Hold several keys at once, for example W + A + S + D + Shift + Space, and watch the held count and max-held count. This shows what reached the browser, not a laboratory measurement of the keyboard hardware.

Why does a key not register?

Try another browser, another USB port, or a different keyboard. Check the active keyboard software profile, any Fn-lock or gaming-mode setting, and the selected operating-system layout. A key that works in a game but not here may be intercepted by software before the page sees it. Check your mouse buttons and scroll wheel too

Can I test media keys and macro keys?

Not reliably. Browsers often consume media keys or expose them differently, and macro keys may send ordinary key combinations or nothing at all. A key that does not appear here may still work in its own software.

Does this test measure polling rate or input latency?

No. A browser cannot reliably measure keyboard polling rate, switch latency or wireless response time. The test checks whether key events register, how many keys are held, and whether a key repeats unexpectedly.

Can I test a laptop keyboard?

Yes. The visual layout is full-size, so a laptop keyboard will not have every key shown. Test the keys your laptop has and check Fn-lock or function-row behavior if a key does something unexpected.

Is any key data sent when I use the test?

No. The test runs entirely in your browser. It does not send key presses, results or keyboard information anywhere.

Related tools and guides

Next step: check your mouse too

A keyboard test covers one half of your setup. Check your mouse buttons and scroll wheel next, then measure your DPI if you are tuning sensitivity.

Open the mouse test Open the DPI analyzer

Last reviewed: 4 November 2026

Keyboard Test

Test every key on your keyboard