Test every single key on your keyboard — letters, numbers, function keys, and special keys
Browser keyboard diagnostics • Every key tested • Modifier key check • 100% local
Keyboard Test
Free online keyboard tester — verify every key on your keyboard works, check modifier keys (Shift, Ctrl, Alt, Meta), detect stuck keys, and find key conflicts. No download needed.
What this online keyboard test does
This free online keyboard test helps you verify that every key on your keyboard works correctly. It shows a visual keyboard layout that highlights each key as you press it, displays detailed key event information including the key name, code, and modifier states, and tracks how many times each key has been pressed. Whether you are troubleshooting a stuck key, testing a new mechanical keyboard, checking modifier key combinations, or diagnosing key conflicts after a system update, this tool gives you instant visual feedback without installing any software.
How to test your keyboard step by step
- 1.Open this keyboard test page in Chrome, Firefox, Edge, or Safari — no installation required
- 2.Press any key on your physical keyboard and watch it light up on the visual keyboard
- 3.Check the Key Details panel to see the key name, code, and modifier states (Shift, Ctrl, Alt, Meta)
- 4.Test modifier key combinations like Shift+A, Ctrl+C, or Alt+Tab to verify they register correctly
- 5.Review the Most Pressed Keys panel to identify which keys you use most and verify their responsiveness
- 6.Check the Recent Events log for a timeline of your key presses and any unusual patterns
Why use this free keyboard tester
Visual keyboard highlights make it easy to spot keys that do not register or respond slowly
Modifier key detection shows exactly which combinations (Shift, Ctrl, Alt, Meta) are active
Press count tracking helps identify stuck keys or keys that fire multiple times per press
Works on Windows, macOS, Linux, and ChromeOS — any device with a browser
No software installation, no data uploaded — all processing happens in your browser
Keyboard test FAQ
What keyboard information does this test show?
It shows the key name (the character or function), the key code (physical key identifier), the numeric key code, and whether modifier keys (Shift, Ctrl, Alt, Meta) are held down. It also tracks how many times each key has been pressed.
Can I test keyboard shortcuts like Ctrl+C or Alt+Tab?
Yes. The test detects all modifier key combinations. However, some shortcuts like Alt+Tab or Ctrl+Alt+Delete are intercepted by the operating system before they reach the browser, so they may not appear in the test.
Does this work with wireless and Bluetooth keyboards?
Yes. The test works at the browser event level, so it does not matter how the keyboard is connected — USB, wireless receiver, or Bluetooth. It also works with laptop built-in keyboards.
Is this keyboard test free and does it require installation?
Completely free with zero installation. The test runs entirely in your browser using standard web APIs. No downloads, no plugins, no account needed.
Can this test detect stuck or repeating keys?
Yes. If a key shows as always active in the modifier display or keeps incrementing its press count without you pressing it, that indicates a stuck key. The event log also helps identify unusual repeat patterns.