Keyboard Tester & Keyboard Checker
Use our free online keyboard tester to check your keyboard keys. Detect issues like stuck keys, ghosting, or unresponsive keys with our key tester.
This keyboard checker works with Windows, macOS, Linux, and mobile devices with external keyboards — test keys all in your browser.
Check every key, spot stuck keys, and verify NKRO/rollover in your browser.
Prefer deep diagnostics (repeat rate, chatter, chords)? Try the Advanced Keyboard Diagnostics
Press any key to start the keyboard test!
Esc
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
F11
F12
`
1
2
3
4
5
6
7
8
9
0
-
=
Backspace
Tab
Q
W
E
R
T
Y
U
I
O
P
[
]
\
Caps Lock
A
S
D
F
G
H
J
K
L
;
'
Enter
Shift
Z
X
C
V
B
N
M
,
.
/
Shift
Ctrl
Alt
Space
Alt
Ctrl
