THE KEYBOARD WORKBENCH

Free Online Keyboard Tester

This free online keyboard tester shows which key presses your browser receives. Press the keys on your physical keyboard to check letters, F-keys, arrows and the numpad. No download or account needed.

  • No downloads
  • No account
  • Key presses stay on your device
LIVE KEYBOARD TEST

Meet your keyboard.

Press a physical key to begin
Press any key
Code
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Location
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keyCode
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Held
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0 of 104 keys tested

Untested Tested Pressed now
Typed text

Keys you press turn red, and stay tinted once they've been tested. Fn and some media keys are handled by your keyboard or operating system and may not reach the browser.On a phone or tablet, connect a keyboard first. Tapping the keys on screen does not test switches.Using only a keyboard? Press Esc twice to leave the tester.

Something not responding? Start with a second USB port or another computer.Find a fix

How to test your keyboard

The whole test takes about a minute. Use a physical keyboard: tapping the keys on screen doesn't test anything.

  1. Keyboard tester with the keys that have been pressed tinted red

    Press every key

    Press each key on your keyboard one at a time. Working keys light up red on the keyboard above and stay tinted once they have been tested.

  2. Keyboard tester showing Shift, W, A, S and D held down at the same time

    Try key combinations

    Hold several keys together, such as Shift with letters or W, A, S and D, to see whether each press registers. Press Reset whenever you want to start over.

  3. Keyboard tester progress bar showing 58 of 104 keys tested

    Check the result

    The counter shows how many keys you have tested. Retest any key that never lights up or appears to repeat. Browser shortcuts, keyboard settings and connection problems can also affect the result.

What your keyboard test results mean

A red key means the browser received a key-down event. A tinted key means that key has been tested during this session. The counter tracks the selected layout, so choose a size that matches your keyboard before judging missing keys.

  • A key never registers: press it on its own, check your keyboard layout settings, then try another USB port or computer before assuming a switch has failed.
  • A key appears stuck: press and release it again. Changing windows or using system shortcuts can prevent the browser from receiving a release event.
  • A key registers twice: retest with slow, separate taps. A repeated-event warning suggests possible chatter; it does not establish a hardware fault.
  • Keys disappear in a combination: compare individual presses with the same keys held together. Use the key rollover test to investigate combinations your keyboard can register.

For browser event timing, use the keyboard latency test. If keys also fail outside the browser, follow the keyboard troubleshooting guide.

Why use this keyboard tester

  • Free keyboard test icon

    Free to use

    Test as many keyboards as you like at no cost: desktop, laptop, wireless, gaming and mechanical keyboards all work.

  • Fast keyboard test icon

    Fast and detailed

    Every press shows up instantly with the key name, its code, which side it is on and how long you held it. No app or plug-in needed.

  • Private keyboard test icon

    Private by design

    The tester runs entirely in your browser. Key presses are processed locally rather than sent to our server. You can save a test report when you choose.

For desktop, laptop and compact keyboards

  • Windows keyboard icon

    Windows keyboards

    Test standard, gaming and wireless keyboards on Windows. Some system shortcuts and Print Screen presses may be intercepted before they reach your browser.

  • Mac keyboard icon

    Mac keyboards

    Switch the tester to Mac to see Command, Option and Control where they sit on Apple keyboards, plus F13 to F15.

  • Laptop keyboard icon

    Laptops and compact boards

    Pick TKL or 60% to match smaller keyboards, or use full size for keyboards with a numpad.

More keyboard tests

Check browser response timing, see how many keys register at once, or type in another language.

Watch: how to test a keyboard properly

A quick walkthrough of testing every key on your keyboard with a free online keyboard tester.

Frequently asked questions

What is a keyboard tester?

A keyboard tester displays the key events received by your browser on a virtual keyboard. Use it to check individual keys, left and right modifiers, the number pad and combinations of keys. It helps you spot input problems, but cannot certify the condition of a physical switch.

Why do Fn, media keys or some shortcuts not register?

The Fn key is usually handled by keyboard firmware, while the operating system or browser may intercept media keys, Print Screen and system shortcuts. A missing highlight for these keys alone does not prove the keyboard is broken. Check the action the key normally performs as well.

Why does the wrong letter or symbol appear when I press a key?

Your computer is probably set to a different keyboard layout or language than your keyboard. Open your keyboard or language settings, choose the layout printed on your keys (for example US QWERTY) and remove layouts you don't use. If it still happens, reinstall the keyboard driver from your manufacturer's website.

What should I do if a key doesn't light up in the tester?

Reconnect the keyboard or try another USB port. For a wireless keyboard, replace the batteries and pair it again. Then test it on another computer: if the key works there, the cause is a driver or setting on your computer; if it fails there too, the key or switch is faulty.

How do I fix sticky or unresponsive keys?

Unplug or switch off the keyboard, turn it upside down and tap it gently to release crumbs, then blow compressed air between the keys. Clean sticky keys with a cotton swab lightly dampened with isopropyl alcohol. After a sugary spill, the keyboard may need a deep clean or replacing.

When should I use a keyboard tester?

Use it when a key stops working, types twice or feels sticky, when you buy a new or used keyboard, to check ghosting on a gaming keyboard, and to test keys you can't easily type into a document, such as F1 to F12, Print Screen or the numpad.

Does the keyboard tester work on Mac and laptop keyboards?

Yes. Switch the tester to Mac to show the Command and Option keys, or choose TKL or 60% for smaller keyboards. Laptop keyboards work too, but the Fn key itself can't be detected because the keyboard handles it internally.

How do I check that all my keyboard keys are working?

Press every key once. Each key lights up red while you press it and stays tinted afterwards, and the counter shows how many keys you have tested. When every detectable key is tinted, the browser has received a press from each one. This does not certify the keyboard’s hardware or measure switch reliability.

How do I know if my keyboard is failing?

Warning signs are keys that never light up, keys that need extra force, keys that register twice from one press (the tester warns you about this key chatter) and keys that stay pressed after you let go. If keys also fail on another computer, it is time to repair or replace the keyboard.

Is it safe to type in an online keyboard tester?

The tester processes key presses locally and does not send typed text to our server, so you can test keys without submitting typed text. Avoid entering passwords or sensitive information on any testing page.

Keyboard guides and fixes

Found a problem? These guides walk you through the most common keyboard fixes. Browse all articles.

How To

What Is a Keyboard Tester?

A keyboard tester shows whether every key registers correctly. Learn when to test your keyboard, the signs of a failing key and how to run a test.

Harris Brown · Updated

MacBook keyboard with Control, Option, Command and the power button highlighted
How To

How to Restart a Mac with the Keyboard

Restart your Mac using only the keyboard: the standard restart shortcut, how to force restart a frozen Mac and what to do when shortcuts don't work.

Harris Brown · Updated

More keyboard guides

Test every key on a keyboard in your language or layout. See all language keyboards.