Free online tool

Test every mouse button, click interval, scroll wheel and observed movement frequency in your browser.

Private by design

Keyboard test online for every key press

Check keyboard keys online with a local browser tester that shows the last key and recent key presses.

Start the mouse test

Check every key for a response

Focus this panel, press keys and verify the browser receives the expected key name.

Keys pressed0
Click here, then typeWaiting for a key
Keys are measured locally in this tab

How to test every keyboard key online

Click the panel, press one key at a time and compare the key name shown with the physical key. Media keys, browser shortcuts and operating system actions may be handled before a page receives them. If one key is missing, compare another layout and check for a dead switch; if combinations fail only when several keys are held, investigate keyboard ghosting.