Keyboard Test
Client-Side SecureFree online Keyboard Test. Check for ghosting, key rollover, and broken keys on your mechanical or laptop keyboard. Instant visual feedback.
KeyMaster
Input Diagnostic Tool
Input Diagnostics
Event Stream
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Online Keyboard Tester
Test every key on your keyboard right in your browser. Check for ghosting, verify your mechanical switches, and test N-Key Rollover (NKRO) capabilities. No software download required.
Ghosting & Rollover
Ghosting happens when a keyboard fails to register a key press when multiple keys are held down. Use our "Max Combo" stat to press as many keys as possible (e.g., hold both Shifts + Space + W) to see if your gaming keyboard supports true NKRO.
Troubleshooting
If a key lights up green here, the signal is reaching your computer. If it doesn't work in a specific game or app, the issue is software. If it doesn't light up here, try cleaning the switch with compressed air.
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