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Keyboard tester online: check every key

Just start typing, press every key once, done: working keys light up, missing ones stay white. Shows key and code, plus a check for several keys at the same time.

Start the test and press keys · 0 of 79 keys tested

Esc
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
F11
F12
`
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
;
'
↵
Shift
Z
X
C
V
B
N
M
,
.
/
Shift
Ctrl
Win/⌘
Alt
Alt
Win/⌘
Menu
Ctrl
pressedworksnot tested yet

Last key

no key yet

Pressed at the same time (max)

0

Hold several keys at once to check for ghosting.

Everything runs in your browser, no keystroke is sent or stored. The test needs a real keyboard. It does not work on a phone or tablet without one.

How the keyboard tester works

  1. Just start typing. The test starts with the first key, or click Start the test.
  2. Press every key once. Keys that work turn indigo, the one you are pressing turns yellow.
  3. If a key stays white after you pressed it, its signal does not reach the computer.

The tester identifies keys by their position on the keyboard, not by the letter. So it shows the right picture whether your system is set to QWERTY, QWERTZ or AZERTY. Switch the layout at the top. How the three differ is in the keyboard layout comparison and the guide QWERTY vs AZERTY vs QWERTZ.

What the numbers mean

  • key and code: key is the character your layout produces, code the physical key. On a German keyboard, Z gives key "z" and code "KeyY", because it sits where a US keyboard has the Y.
  • Pressed at the same time: hold several keys at once. If it counts fewer than you press, the keyboard blocks combinations (ghosting). That can get in the way in games and when typing fast.
  • Other keys detected: numpad, media keys and special keys that are not in the drawing.

When a key does not respond

  • Check in another program, for example a text field, whether the key is missing there too.
  • Crumbs and dust are a common cause: turn the keyboard over, tap it gently or clean it with compressed air.
  • Wireless keyboards: check the batteries; USB keyboards: try another port.
  • A key that fires twice or sticks may also have a worn switch.

Everything works? Then measure what you get out of it with the free typing speed test.

Frequently asked questions

How do I test my keyboard online?

Start typing and press every key once. Every key that registers turns indigo. White keys were not detected.

Why do some keys not respond in the test?

Some combinations are caught by the operating system before the browser sees them, such as the Windows key or Fn. If a plain letter key is missing, the keyboard itself is usually the cause.

What is keyboard ghosting?

When several keys pressed at the same time do not all register. The "pressed at the same time" value shows how many keys your keyboard passes on at once.

Are my keystrokes stored?

No. The test runs entirely in your browser, nothing is sent or stored.

Sources