LuabifyQuick device diagnostics

Keyboard Test

Click Press your keys to see them highlight live. Stuck or missing highlights signal a hardware issue.

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
;
'
Enter
Shift
Z
X
C
V
B
N
M
,
.
/
Shift
Ctrl
Win
Alt
Space
Alt
Menu
Ctrl

Key log

  • Waiting for input...--

Why run a keyboard test

A keyboard test gives you a clear, real-time confirmation that each key press is being recognized before you join a call, start a game, or begin focused work. It is a fast and practical way to catch unresponsive keys, stuck inputs, or layout mismatches without installing software, helping you resolve issues early and avoid typing surprises.

How the test runs

The tool runs entirely in your browser and listens for standard keyboard events as you type. Each press is reflected instantly on the on-screen layout, and the test stops as soon as you leave the page. No software is installed and no background processes remain active.

How to interpret results

When a key is pressed, the corresponding key highlights on the screen. If no highlight appears, the input did not reach the browser. If a key stays highlighted after you release it, this visual behavior often points to a stuck key, debris, or a mechanical issue. Comparing what you press with what lights up helps confirm that your layout, modifier keys, and shortcuts behave as expected.

  • No highlight suggests the key press was not detected by the browser.
  • Persistent highlights can indicate a stuck key or failing switch.
  • Unexpected highlights usually signal an operating system layout mismatch.

This test checks keyboard input at the browser level and is intended for quick diagnostics. It does not measure hardware performance, firmware behavior, or advanced metrics such as polling rate.

Frequently Asked Questions

What is this keyboard test used for?

This keyboard test helps you confirm that every key registers correctly. It highlights each key as you press it, making it easy to spot unresponsive or stuck keys.

How does the keyboard test work in the browser?

The test runs entirely in your browser and listens for key press events. Each key press is shown immediately, with no software installation required.

Does this keyboard test work on Windows, macOS, and Linux?

Yes, the keyboard test works on major desktop operating systems. Results can vary slightly by browser and keyboard layout, but key detection is consistent.

Which browsers support the keyboard test?

Any modern browser with standard keyboard event support should work. If a key does not register, try another browser to compare behavior.

Why is a key not registering in the keyboard test?

A key might not register due to debris, hardware faults, or OS shortcuts intercepting the input. Try pressing the key firmly, checking your keyboard layout settings, or testing in another browser.

Can this keyboard test detect stuck keys or ghosting?

The keyboard test can reveal stuck keys when a highlight remains after release. It can also show basic ghosting, but it does not measure full n-key rollover behavior.

Does the keyboard test record or store my keystrokes?

No, the keyboard test runs locally in your browser and does not save or upload keystrokes. Key detection stops when you leave the page.

Why does the keyboard layout show not detected?

Some browsers do not expose detailed layout information. The test still works, but it may not identify the exact layout automatically.

Can I use the keyboard test for laptop and external keyboards?

Yes, it works for built-in laptop keyboards, USB keyboards, and most wireless keyboards. If multiple keyboards are connected, ensure the intended one is active.

Does the keyboard test work on mobile devices?

Mobile on-screen keyboards have limited key event reporting. External keyboards connected to tablets or phones may work, but the test is designed for desktop and laptop use.

Can the keyboard test check media keys or function keys?

Standard alphanumeric and modifier keys are reliably detected. Media and function keys depend on firmware and OS behavior, so some may not be reported by the browser.

Why do keyboard test results differ from other tools?

Different tools use different layouts, key codes, or visual mappings. Browser and OS settings can also affect how keys are reported.
Keyboard Test | Check Every Key | Luabify