Keyboard latency tester with practical numbers
Capture average, min, max, P95, jitter, sample count, and a stability score so you can compare wired, wireless, Bluetooth, laptop, and gaming keyboards.
Keyboard Ghosting Tester
Hold common gaming combinations and check whether your keyboard misses keys, blocks combinations, or behaves differently across laptop, membrane, and mechanical layouts.
100% PrivateRuns locally in your browserNo personal data collected
Keyboard Ghosting Tester
Hold multiple keys at once. The page tracks live rollover, max simultaneous keys, and common gaming combos.
Pressed now
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Max simultaneous
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Tested keys
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Combos checked
0/5
Esc
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
F11
F12
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1
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Backspace
Tab
Q
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Y
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P
[
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\
Caps
A
S
D
F
G
H
J
K
L
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Enter
Shift
Z
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V
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N
M
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Shift
Ctrl
Win
Alt
Space
Alt
Fn
Menu
Ctrl
←
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→
Combo checklist
WASD + Spacetry
KeyW + KeyA + KeyS + KeyD + Space
Sprint combotry
ShiftLeft + KeyW + KeyA + Space
Arrow clustertry
ArrowUp + ArrowLeft + ArrowDown + ArrowRight
Shortcut stacktry
ControlLeft + ShiftLeft + Escape
Number rowtry
Digit1 + Digit2 + Digit3 + Digit4 + Digit5
More Keyboard Testing Tools
Keyboard Ghosting TestCheck for ghosting and n-key rollover issues.Keyboard CompareCompare latency between two keyboards.
Key CheckerSee which keys work and which do not.Input Lag Test (End-to-End)Measure full system input lag.
What the tester checks
A keyboard latency tester should explain the result, not just flash a key.
Keyboard Latency Tester keeps the useful data close to the keyboard: live timing, slow-tail latency, jitter, key coverage, and repeat signals that point to chatter or debounce issues.
Keyboard chatter and double press detection
Spot suspicious repeat triggers, short key intervals, and likely debounce issues before you request RMA, clean a switch, or replace a keyboard.
Keyboard ghosting tester for game combos
Check common WASD, Shift, Ctrl, Space, number-row, and arrow-key combinations to understand rollover limits and ghosting behavior.
Exportable keyboard test report
Download a local JSON report with timing metrics, suspicious keys, tested key coverage, and recent key history for repair, resale, or IT records.
Keyboard Ghosting Tester FAQ
What does this keyboard latency tester measure?
It measures browser-observed keyboard event timing: average delay, minimum, maximum, P95, jitter, and sample stability. It is useful for comparing keyboards, USB ports, Bluetooth mode, and system settings, but it is not a lab-grade physical switch-to-screen measurement.
Why can browser keyboard latency results vary?
Results can change because of operating system scheduling, browser overhead, background tabs, wireless mode, USB hubs, power saving, and display refresh behavior. Run several rounds and compare the same setup under similar conditions.
Can this tool find keyboard chatter or double typing?
Yes. The diagnostic panel flags unusually short repeat intervals for the same key, which can indicate switch chatter, debounce problems, dirt, or a failing key.
Is my key data uploaded?
No. The keyboard test runs locally in your browser. The report export is generated on your device and no typed content is sent to a server by this tool.