How do I test my keyboard online?

Open the keyboard tester and press each physical key. The matching on-screen key lights while held and remains marked after it has been tested.

Can I test a laptop, USB or Bluetooth keyboard?

Yes. The tester listens for keys reported by the browser, so it can be used with laptop keyboards and connected USB or Bluetooth keyboards.

Why does a keyboard key not register?

A key may be faulty, disabled, remapped, handled by the operating system, or captured by a browser shortcut. Try the key in another app before concluding the hardware is broken.

Free keyboard diagnostic

Keyboard Tester Online – Test Every Key Free

Q: Can I test the numpad?

Yes. The visual tester includes Num Lock, numpad digits, decimal, Enter and common calculator operators when the browser reports them.

Run a free keyboard test in your browser. Press keys on your physical keyboard and watch them light up below to check letters, number keys, modifiers, arrows, function keys, punctuation and the numpad.

Live test

Press any keyboard key

Keys turn blue while held and remain marked after they have been tested.

Last key—

Code—

Location—

Keys tested0

Some browser or operating-system shortcuts can be intercepted before a webpage receives them. If a special key does not register here, that alone does not prove the key is defective.

What this tool checks

Test common keyboard keys in seconds

Letters and number row

Check A–Z, 0–9, punctuation, Backspace, Tab, Caps Lock, Enter and Space.

Left and right modifiers

The tester distinguishes left/right Shift, Control and Alt when the browser exposes the key location.

Function and navigation keys

Check F1–F12, Insert, Delete, Home, End, Page Up, Page Down and arrow keys.

Numpad

Test Num Lock, digits, decimal, Enter and calculator operators on a full-size keyboard or external keypad.

Useful before typing practice

When should you use a keyboard tester?

A keyboard tester is useful when a key feels inconsistent, repeats unexpectedly, stops responding, or behaves differently after cleaning, travel, a spill, a keyboard replacement, or connecting a USB/Bluetooth keyboard. It is also a quick way to verify left/right modifier keys and numpad input before a typing test.

For typing practice, a reliable keyboard matters more than an expensive one. If every key registers consistently and the keyboard feels comfortable, you can learn touch typing on it. If you are choosing a new keyboard, read our guide to choosing a comfortable keyboard for typing practice.

Common questions

Keyboard tester FAQ

How do I test my keyboard?

Press each physical key once. A working key should light on the visual keyboard and remain marked as tested.

Can I test a laptop or external keyboard?

Yes. Laptop, USB and Bluetooth keyboards can all be checked when the browser receives their key events.

Why might a key not appear?

Some operating-system and browser shortcuts are intercepted before the page receives them. Check the same key in another app before deciding the hardware is faulty.

Can I test the numpad?

Yes. Use Num Lock, digits, decimal, Enter and calculator operators to confirm dedicated 10-key input before numpad practice.