Comprehensive keyboard testing tool that detects every key press, including modifier keys (Ctrl, Alt, Shift), function keys, and special keys. Monitor key codes, locations, and detect dead keys or ghosting issues. Perfect for troubleshooting keyboard problems or verifying all keys are functioning properly.
Did you know that most keyboards can register up to 6 simultaneous key presses? This tester reveals if your keyboard supports N-key rollover (NKRO) or has ghosting limitations. Professional gamers and typists rely on this tool to ensure their keyboard can handle complex key combinations without missing inputs.
Start with the live tester below. Supporting details, FAQs, and troubleshooting guidance are placed after the tool so the main action is easier to find and use immediately.
Click anywhere on the page and start typing. Each key press will show up below.
Common problems
If the live tester does not behave as expected, these are the first checks most users should try before assuming the hardware is broken.
Test all modifier keys (Ctrl, Alt, Shift, Windows) - these are critical for shortcuts and gaming
Check function keys (F1-F12) - often overlooked but essential for productivity
Test number pad if available - verify all numeric keys work correctly
Look for "ghosting" - when pressing multiple keys, some combinations may not register
Comprehensive keyboard testing tool that detects every key press, including modifier keys (Ctrl, Alt, Shift), function keys, and special keys. Monitor key codes, locations, and detect dead keys or ghosting issues. Perfect for troubleshooting keyboard problems or verifying all keys are functioning properly.
Did you know that most keyboards can register up to 6 simultaneous key presses? This tester reveals if your keyboard supports N-key rollover (NKRO) or has ghosting limitations. Professional gamers and typists rely on this tool to ensure their keyboard can handle complex key combinations without missing inputs.
Test mouse buttons, scroll wheel, pointer tracking, and touch input.
Test your microphone input levels in real-time. Verify microphone is working.
Test your speakers or headphones with reference tones.
Test your webcam, verify camera works, and check framing.
Helpful questions
Use these answers to understand results, browser limitations, permissions, and sensible next troubleshooting steps.
Press every letter, number, modifier, and function key one by one, then try common multi-key combinations such as Shift + letter, Ctrl + Alt + key, or several gaming movement keys at the same time. If a key never appears or a combination fails to register consistently, your keyboard may have a dead switch or ghosting limitation.
Yes. The tester works with built-in laptop keyboards, wired USB keyboards, and most wireless keyboards that are already recognized by your browser and operating system. It is useful for comparing devices if you are unsure whether the problem comes from the keyboard hardware or the computer itself.
Modifier keys and function keys are often the first keys users overlook during a quick check, yet they are critical for shortcuts, gaming controls, accessibility commands, and productivity workflows. A keyboard can appear mostly functional while still failing on Ctrl, Alt, Shift, Fn, or F-keys.