Device tests
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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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.