Device Input Tester
Diagnose hardware issues with your keyboard, mouse, and game controllers.
Current KeyPress any key
Keys0
Ghosting0
ISO
Mac
Num
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
a
s
d
f
g
h
j
k
l
;
'
Enter
Shift
z
x
c
v
b
n
m
,
.
/
Shift
Ctrl
Win
Alt
AltGr
Menu
Ctrl
PrtSc
ScrLk
Pause
Ins
Home
PgUp
Del
End
PgDn
↑
←
↓
→
Num
/
*
-
7
8
9
4
5
6
1
2
3
0
.
+
Ent
Ghosting
Cheap keyboards can't register more than 3-6 keys at once. Use the keyboard tab to hold down multiple keys to check limits.
Polling Rate
Measured in Hz. 1000Hz = 1ms delay. 125Hz = 8ms delay. Higher is smoother for gaming.
Stick Drift
Check "Raw Axes". If you aren't touching sticks but numbers aren't 0, your controller has drift.
Connectivity
Use Hardware Scan to verify if a physical USB port is reading data from devices correctly.