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The following online key rollover test makes it easy for you to verify specifications from manufacturers. You can try out various key combinations and test how many keys your keyboard can handle at once.
Key rollover is the ability of a computer keyboard to correctly handle several simultaneous keystrokes, often important in gaming as well as for testing rapid key pressing and reaction time.
Key rollover indicates the number of keys you can press simultaneously without losing input. Our online tool can help you identify your keyboard’s key rollover and find the perfect fit for your needs.
Test your keyboard's key rollover (NKRO) and ghosting online. Find out how many keys you can press simultaneously without losing inputs.
Web-based tool for testing keyboard keys, as well as which key produces which character and level of key rollover.
The proper use of these tests to determine keyboard rollover is to discover the number of keys that can be recognized. You press q (pause) w (pause) e (pause) r (pause) t (pause) y, one at a time, and all five keys ar...
Press multiple keys at once to find your keyboard’s NKRO limit, detect ghosting, and export results. Free, browser-based, no install.
