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Input Tester

Hardware Input Lab

Test mechanical switches, diagnose key chattering, and check for keyboard ghosting.

Diagnostics Suite

Initialize UK Input Diagnostic

Diagnose Sticky Keys, Ghosting, and Mouse Faults

Before you throw away an expensive mechanical keyboard or gaming mouse, you need to isolate the fault. Is a switch physically broken, or is it just a software glitch? Our Hardware Input Lab captures the raw electrical signal from your peripherals directly in your browser, allowing you to test every single key and click without downloading any bloated diagnostic software.

Test for Keyboard Ghosting & NKRO

When you are gaming, you often press multiple keys at once (like holding W, Shift, and Space to sprint and jump). Cheaper membrane keyboards suffer from Ghosting—a hardware limitation where the board literally cannot process more than a few simultaneous keypresses. Use our interactive matrix to hold down multiple keys at once to test your keyboard's N-Key Rollover (NKRO) capability and see exactly which inputs are being dropped.

Keyboard Ghosting Test Matrix

Diagnose Key Chattering & Double-Clicks

As the physical switches in your keyboard and mouse gather dust or wear out over time, they can develop a fault known as Chattering. This is where a single physical press results in multiple inputs registering on your screen (typing "tteesstt" instead of "test"). By watching our live signal monitor, you can easily identify overly sensitive, failing, or double-clicking switches that require cleaning or replacement.

Mechanical Keyboard Switch Diagnostic

Why Use Our Input Diagnostic Lab?

Accurate UK ISO Layout

Most online keyboard testers use the American ANSI layout, leaving UK users guessing. Our lab is specifically mapped to the UK ISO 102-key standard, including the large Enter key and correct symbol placements.

Integrated Mouse Testing

Don't just test your keys. We include a dedicated mouse testing zone to verify your left click, right click, and middle scroll-wheel button are functioning flawlessly without misfires.

Safe & Browser-Based

Because the test runs entirely in your local browser, it is 100% secure. We do not use keyloggers, and your keystrokes are never transmitted or saved to our servers.

Need a Hardware Repair or Switch Replacement?

If our diagnostic tool confirms you have dead keys, a faulty laptop keyboard, or a double-clicking mouse switch, our hardware technicians can repair or replace the faulty components.

Book a Hardware Repair