Observed arrival · 2026-09-22
Keyboard & Mouse Tester
A browser-based diagnostic tool for checking keyboard keys, shortcuts, repeats, buttons, and mouse events.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- People checking a keyboard, mouse, or hardware connection
- Worth noticing
- The tester distinguishes event.code from typed characters and tracks up to 50 recent events.
Field notes
The interface separates keyboard and mouse checks, showing a 104-key layout with progress states for untested, pressed, tested, and repeated input. It exposes event.key, event.code, KeyCode, repeat status, and current combinations, while the live log retains up to 50 events. The page also cautions that operating-system shortcuts may be intercepted before the browser receives them, so results are explicitly framed as reference information rather than a definitive hardware diagnosis.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
One card from the complete issue