Keyboard Tester
Test your keyboard online: see pressed keys live, check rollover, find dead keys.
Press keys on your keyboard to test them.
All key presses stay local in your browser – nothing is stored or sent.
Test Your Keyboard Performance
Use our online keyboard tester to evaluate your hardware instantly. The tool provides real-time feedback on every key you press, allowing you to identify non-responsive buttons or dead keys immediately. It also tracks simultaneous key presses to help you understand the rollover capabilities of your specific keyboard layout. Whether you are checking a new mechanical keyboard or troubleshooting an old peripheral, this tool offers clear visual indicators for each key's status and its unique scan code.
Secure and Private Testing
Your privacy is a top priority when using our online tools. All keyboard interactions are processed locally within your web browser. This means that none of your keystrokes, including sensitive information or personal data, are recorded, stored, or transmitted to any external servers. You can safely test your hardware and check for malfunctions without worrying about your input being monitored by third parties. The tool functions entirely on-device to ensure a secure user experience at all times.
Frequently asked questions
How do I use the keyboard tester?
Simply open the page and begin pressing keys on your physical keyboard. The tool will highlight each key in real-time, show you the specific scan code for every input, and update a progress bar to indicate how many unique keys have been tested so far.
What is key rollover?
Key rollover refers to the ability of a keyboard to register multiple simultaneous key presses. Our tool helps you test this by showing exactly how many keys are being pressed at once, which is particularly useful for gamers and professionals using high-performance mechanical keyboards.
How can I find dead keys?
By pressing every key on your keyboard while the tool is active, you can see if any buttons fail to register. If a key does not light up or show its code when pressed, it is considered a dead key and may need cleaning or replacement.
Is my data safe on this site?
Yes, your data is safe because the tool processes all input locally in your browser. No keystrokes are sent to any servers or stored in databases. The system only provides visual feedback for your inputs to help you diagnose hardware issues privately and securely.