Press your keys
Click the tester, then press every key on your actual keyboard. Each working key lights up immediately.
THE QUICK, SIMPLE KEYBOARD CHECK
Free Online
Keyboard Tester
Test your keyboard in seconds. Press any key to see it light up, spot unresponsive keys, and check multiple keys at once. No installation, no signup.
Instant feedback Private by design Works with any physical keyboard
KEYS TESTED
0/ 104
COMPLETION
0%
LAST KEY PRESSED
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KEYS HELD NOW
0max 0
Key inspectorSee exactly what your browser detects
EVENT.CODE—
EVENT.KEY—
LOCATION—
KEYCODE—
Test with a physical keyboard. Some keys (including Fn, media controls, and OS shortcuts) may be intercepted before reaching your browser. Key events are processed locally and never sent to a server.
THE PROCESS
A healthy keyboard in three steps.
No complicated setup, no software to install. Your browser does all the work.
Check combinations
Hold several keys together to see which inputs your browser receives at the same time.
Review your results
Track test progress, inspect key codes, and download a report of the keys you checked.
Truly instantStart testing in one click
Flexible layoutsFull-size, TKL, and 60%
Privacy-firstNothing you type is uploaded
Useful reportsExport your checked keys
GOOD TO KNOW
Frequently asked questions.
Quick answers to the most common keyboard testing questions.
How do I test if all the keys on my keyboard work?
Click the keyboard tester above and press each physical key, including the function row and arrow keys. A detected key turns green and stays highlighted after you release it. Use the completion counter to track your progress.
Can I test a mechanical, gaming, wireless, or laptop keyboard?
Yes. Any physical keyboard that sends key events to your browser can be checked, including Bluetooth, USB, built-in laptop, mechanical, and gaming keyboards. Choose the closest keyboard size before testing.
Why won't the Fn or Windows key show up?
The Fn key is usually handled entirely inside your keyboard and does not generate a normal browser key event. Some operating-system shortcuts, power keys, and media keys may also be intercepted. Not lighting up does not always mean a key is broken.
How can I check for keyboard ghosting or rollover?
Hold several physical keys down together, such as W, A, Shift, and Space. The tester highlights inputs that reach the browser and shows the number of keys currently held. If an expected input never appears, test it individually and on another computer to narrow down the cause. This isn't a hardware-grade NKRO certification.
Is KeyTapTest safe? Does it record what I type?
Testing runs in your browser. Your key events are used only to light up keys and update the local counters; they are not uploaded, logged to analytics, or saved between visits. The optional report is generated locally on your device. Avoid typing passwords into any keyboard testing website.
What should I do if a key doesn't respond?
Try another USB port or reconnect your Bluetooth keyboard, restart the computer, and test on a different device. If the key still doesn't register, clean around the switch and check your keyboard manufacturer's troubleshooting guide.