Private browser diagnostics
Keyboard & Mouse TesterFree online hardware tests.
Check keyboard keys, combinations, mouse buttons, scrolling, movement, and browser event behavior instantly. No installation, account, or input upload is required.
Choose a diagnostic tool
Two focused tests, one private workspace
Keyboard diagnostics
Online Keyboard Test
Check every key, physical position, key combinations, hold behavior, and repeated input on standard and Apple keyboard layouts.
Open keyboard testMouse diagnostics
Online Mouse Test
Test five mouse buttons, wheel direction, double clicks, movement tracking, side buttons, and an estimated browser event rate.
Open mouse testFast feedback without sending your input anywhere
Runs locally
Keyboard and mouse events stay inside your browser. Test input is not sent to our server.
Works across devices
Use the tools with Windows, macOS, Linux, laptops, external keyboards, and standard browser-compatible mice.
Clear live feedback
See pressed, tested, repeated, click, scroll, movement, and event details as they happen.
Keyboard and mouse testing FAQ
Do I need to install software?
No. Both tests run directly in a modern browser and do not require an account, extension, or download.
Can the site diagnose hardware with certainty?
No browser tool can provide a definitive hardware diagnosis. Use the results for initial troubleshooting and confirm persistent faults with another device or a qualified technician.
Why are some shortcuts unavailable?
The operating system or browser may handle keys such as Win, Command, Print Screen, Alt + Tab, and Ctrl + Alt + Delete before a webpage receives them.