Free online keyboard checker
A keyboard tester shows which keys your browser detects and how each event is identified. Focus the tester, press any key, and check its visual state, key value, physical code, modifiers, repeat behavior, and release.
Private by design: key events stay in this browser tab and are never uploaded or saved.
Click the panel, then press and release keys. Tab remains available for normal navigation.
Key
—
Code
—
Legacy
—
Modifiers
None
Repeat
No
Reading the results
Troubleshooting
Fn, media, brightness, power, and some system shortcut keys may be handled before the browser can detect them.
Common questions
An online keyboard tester listens for browser keyboard events and highlights each detected key. It helps confirm whether standard, modifier, navigation, and numpad keys are reaching the browser.
Yes. Held keys stay highlighted, repeated keydown events are labeled, and a warning appears when a key remains down for more than two seconds.
The key value reflects the character produced by your layout, while the code identifies the physical key position. Different language layouts can produce different key values from the same code.
No. Events are processed only in your browser, the log keeps just a few recent key details, and nothing is uploaded or saved.
Your operating system or browser may reserve power, brightness, media, Fn, or shortcut keys before a webpage can receive them.
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