RootUtils

Keyboard Test

Client-Side Secure

Free online Keyboard Test. Check for ghosting, key rollover, and broken keys on your mechanical or laptop keyboard. Instant visual feedback.

KeyMaster

Input Diagnostic Tool

Esc
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
F11
F12
PrtSc
ScrLk
Pause
~
1
2
3
4
5
6
7
8
9
0
-
=
Back
Ins
Home
PgUp
Tab
Q
W
E
R
T
Y
U
I
O
P
[
]
\
Del
End
PgDn
Caps
A
S
D
F
G
H
J
K
L
;
'
Enter
Shift
Z
X
C
V
B
N
M
,
.
/
Shift
Ctrl
Win
Alt
Space
Alt
Win
Menu
Ctrl

Input Diagnostics

e.code-
e.key-
e.which-
0
Unique Keys Tested
0
Max Concurrent (NKRO)

Event Stream

Start typing...

Is this tool broken?

Let us know if you found a bug or have a feature request.

Online Keyboard Tester

Test every key on your keyboard right in your browser. Check for ghosting, verify your mechanical switches, and test N-Key Rollover (NKRO) capabilities. No software download required.

Ghosting & Rollover

Ghosting happens when a keyboard fails to register a key press when multiple keys are held down. Use our "Max Combo" stat to press as many keys as possible (e.g., hold both Shifts + Space + W) to see if your gaming keyboard supports true NKRO.

Troubleshooting

If a key lights up green here, the signal is reaching your computer. If it doesn't work in a specific game or app, the issue is software. If it doesn't light up here, try cleaning the switch with compressed air.