How do I test if my keyboard keys work?

Simply press any key on your keyboard and watch the visual keyboard layout. Working keys will light up when pressed. Keys that don't respond may be broken or have connection issues.

What is keyboard ghosting?

Keyboard ghosting occurs when pressing multiple keys simultaneously causes some keys not to register. This is a limitation of cheaper keyboards. Anti-ghosting keyboards can register many keys pressed at the same time.

What is N-key rollover (NKRO)?

N-key rollover means the keyboard can correctly register any number of simultaneous key presses. Gaming and mechanical keyboards often have full NKRO, while basic keyboards may only support 6-key rollover.

Why won't some keys register in the test?

Some keys like F1-F12, Print Screen, or media keys may be intercepted by your operating system or browser before reaching the webpage. This is normal behavior and doesn't indicate a keyboard problem.

Keyboard Test Online - Free Key Tester & Anti-Ghosting Check

Press any key on your keyboard to test it. Keys will light up when pressed.

Keys Pressed 0

Unique Keys 0

Currently Held 0

Last Key -

Key Code -

Esc

F10

F11

F12

PrtSc

ScrLk

Pause

Backspace

Ins

Home

PgUp

Tab

[{

]}

Del

End

PgDn

Caps Lock

Enter

Shift

▲

Ctrl

Win

Alt

Space

Alt

Win

Ctrl

◀

▼

▶

Num

Ent

Key History

Press keys to see history...

Anti-Ghosting / N-Key Rollover Test

Press and hold multiple keys simultaneously to test how many keys your keyboard can register at once. Gaming keyboards typically support 6+ simultaneous key presses.

0 Max Keys Detected

Hold multiple keys...

Keyboard Information

Keyboard Layout Detecting...

Caps Lock Off

Num Lock Unknown

Keyboard Test

Key History

Anti-Ghosting / N-Key Rollover Test

Keyboard Information

Free Online Keyboard Tester

Visual Key Detection

Anti-Ghosting Test

N-Key Rollover Check

Key History Log

Frequently Asked Questions

Common Uses for Keyboard Testing