Keyboard test
Press any key to check it registers. Keys light up as you press them, so you can spot dead or stuck keys.
Press keys on your keyboard — they light up below.
Esc
1
2
3
4
5
6
7
8
9
0
-
=
⌫
Tab
Q
W
E
R
T
Y
U
I
O
P
[
]
Caps
A
S
D
F
G
H
J
K
L
;
'
Enter
Shift
Z
X
C
V
B
N
M
,
.
/
Shift
Ctrl
Alt
Space
Alt
Ctrl
←
↑
↓
→
Last key: —
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What this keyboard test checks
Every key you press lights up on the on-screen layout, so you can walk across the whole keyboard and immediately see which keys register and which don't. It's the standard way to diagnose a suspected dead or stuck key before deciding on a repair.
Reading the results
A key that never lights up when pressed may be dead — though some keys such as Fn and certain media keys are handled in hardware and never reach the browser, so their silence is normal. A key that stays highlighted after you let go may be physically stuck. Test the same key a few times to tell a genuine fault from a one-off miss.
How to use it
- 1Click anywhere on this page so it has focus.
- 2Press each key you want to test — it lights up on the on-screen keyboard.
- 3A key that never lights up may be dead; one that stays lit may be stuck.
Frequently asked questions
- Some keys don't show up — are they broken?
- Not always. Some keys such as Fn or certain media keys are handled by hardware and never reach the browser.
- Does it test every key?
- It covers the standard keys. Laptop-specific and some multimedia keys may not appear.
- Is anything I type stored?
- No — key presses only light up the display and are never recorded or sent anywhere.
- Does it work with an external or wireless keyboard?
- Yes. Any keyboard your computer recognises registers here, whether wired or Bluetooth.
- Why do some keys show a different symbol than printed?
- The browser reports keys by your layout; if your system layout differs from the physical keycaps, the symbol may not match.
- Can I test multiple keys at once (rollover)?
- Press several keys together — each one that registers lights up, which helps you spot rollover or ghosting limits on cheaper keyboards.