Keyboard Tester
Press every key on your keyboard. Keys light up while you hold them and stay blue once they've registered — any key that stays grey isn't reaching your computer.
- Tested
- 0/104
- Held now
- 0
- Most at once
- 0
EscF1F2F3F4F5F6F7F8F9F10F11F12PrtScScrLkPause~`!1@2#3$4%5^6&7*8(9)0_-+=BackspaceInsHomePgUpNum/*-TabQWERTYUIOP{[}]|\DelEndPgDn789+Caps LockASDFGHJKL:;"'Enter456ShiftZXCVBNM<,>.?/Shift↑123EnterCtrlWinAltAltWinMenuCtrl←↓→0.
escF1F2F3F4F5F6F7F8F9F10F11F12~`!1@2#3$4%5^6&7*8(9)0_-+=deletetabQWERTYUIOP{[}]|\caps lockASDFGHJKL:;"'returnshiftZXCVBNM<,>.?/shiftfn⌃control⌥option⌘command⌘command⌥option←
↑↓
→Last key
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- code
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- location
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Key log
- Press any key to start.
- Not pressed yet
- Held down now
- Works — registered
- Browser can't detect
How to test your keyboard
- Choose the Windows or Mac layout (Macs are picked automatically).
- Press each key once. Working keys turn blue.
- Any key still grey at the end didn't register. Press it again, firmly, to confirm.
Check for ghosting
Hold several keys at once and watch Held now. If a key you're holding doesn't light up, your keyboard has hit its rollover limit. Many office keyboards manage 2–6 keys at once, while gaming boards with NKRO register all of them.
Keys a browser can't see
Fn is handled inside the keyboard, so test it by holding Fn and pressing an F-key. Some system shortcuts (Ctrl+Alt+Del, Alt+F4, ⌘+Q, ⌘+Tab) are caught by your operating system before the page sees them.