Free Tech Tools
Quick, free tools for checking your hardware. Everything runs in your browser: no downloads, no account, and nothing you click, type, say or show is sent anywhere.
Each tool explains what your result means and links to a step-by-step fix.
Device tests
Mouse Tester
Every button, double-click faults, scroll wheel and polling rate.
Open tool →Keyboard Tester
Dead keys, chattering switches and how many keys register at once.
Open tool →Microphone Test
Live level and waveform, plus a 5-second recording to hear yourself.
Open tool →Webcam Test
Live picture, real resolution and frames per second.
Open tool →Dead Pixel Test
Full-screen colours to find dead or stuck pixels. No flashing.
Open tool →Fix-it guides
- Mouse double-clicking when you click once? Causes and fixes
- Keyboard keys not working? How to find the cause and fix it
- Microphone not working on Windows 11? A step-by-step fix
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