Keyboard Tester

A key that does not light up in the keyboard tester after pressing. Here is how to fix it:

1. Try the same key in a different application first. If it works there a browser extension or OS setting is intercepting it before the tester sees it.
2. Try a different browser and run the keyboard test again. Some browsers block specific keys.
3. Use compressed air to blow under the keycap in short bursts to remove dust or debris.
4. If the key stays dark across all browsers and applications the switch is dead. Contact your manufacturer for warranty support or professional repair.

A single key press registers two or more times in the Key Press Log. Here is how to fix it:

1. Use compressed air around the affected key to remove dust or debris from the switch.
2. If chatter persists on a mechanical keyboard the switch contacts are bouncing electrically. Contact your manufacturer for warranty replacement before attempting any repair yourself.
3. On a laptop keyboard debris under the key is the most common cause. Use compressed air carefully before contacting manufacturer support.

One or more keys fail to light up when pressing multiple keys simultaneously. Here is what to do:

1. Test the same combination again to confirm it is consistent ghosting and not a one time miss.
2. Try a different key combination. Ghosting is combination specific, not a full keyboard failure.
3. If ghosting affects your gaming or typing workflow your keyboard does not support sufficient NKRO. Consider upgrading to a mechanical keyboard with full NKRO support.

A key keeps firing repeatedly without being pressed again. Here is how to fix it:

1. On Windows check Accessibility Settings and make sure Sticky Keys is disabled. This is the most common cause of repeating keys on Windows.
2. On Chromebook go to Settings, Accessibility, and check that no keyboard modifier settings are enabled.
3. Clean under the keycap with compressed air.
4. If the key keeps repeating after both steps contact your manufacturer for support.

Function keys not lighting up is one of the most common confusion points. Here is why and what to do:

1. On most laptops F1 to F12 require the Fn key held simultaneously. Try pressing Fn plus the function key and check if it registers.
2. Some browsers intercept F1, F5, and F11 before the keyboard tester sees them. Try a different browser if specific function keys do not register.
3. On Mac go to System Settings, Keyboard, and enable "Use F1, F2 keys as standard function keys" to allow direct function key registration.

Left Shift works but right Shift does not register. Here is what to do:

1. Test each modifier key individually. Left and right Shift, Ctrl, and Alt separately in the keyboard tester.
2. Update your keyboard driver from Device Manager on Windows.
3. On Chromebook try powerwashing the device as a last resort if modifier keys fail after a settings check.
4. If only one side of a modifier key fails after a driver update contact your manufacturer for warranty support.

No. AutoClicker.org's keyboard tester does not store, record, or transmit your keystrokes to any server. Everything runs locally in your browser. Your key presses never leave your device.

Grey keys are keys that browsers cannot detect due to OS level interception. Print Screen, Windows key, and some function keys are commonly intercepted before the tester sees them. Grey keys are not dead keys. They are browser limitations not hardware faults.

Yes. AutoClicker.org's keyboard test works with both wired and wireless keyboards. If keys register inconsistently during your wireless session check your battery level and move the receiver closer to reduce interference.

Yes. AutoClicker.org's keyboard tester works with all gaming keyboards. It detects ghosting, tests NKRO levels, and confirms that every key in your WASD cluster and modifier row registers correctly during intense multi key combinations.

Yes. AutoClicker.org's keyboard tester works on mobile devices. Connect a physical keyboard via Bluetooth or USB OTG and run the keyboard test to check every key. On screen mobile keyboards are not detectable through a browser based keyboard tester.