About KeyboardAnalyzer
A free browser-based toolkit for checking keyboard and mouse input without installing software.
What KeyboardAnalyzer does
KeyboardAnalyzer provides practical tests for everyday keyboard checks: key presses, mouse buttons, typing speed, ghosting, click speed, and basic keyboard performance signals.
The tools run in your browser using standard keyboard and pointer events. That makes them quick to use for troubleshooting a laptop keyboard, a mechanical keyboard, a compact layout, or an external USB or Bluetooth keyboard.
The site is intended for diagnostic guidance, not laboratory certification. Browser, operating system, USB hub, wireless latency, and device firmware can all affect what a web-based test can observe.
Browser-local testing
Key and click events are processed on the page so you can see live feedback immediately. The tester does not need a device driver, desktop app, or account.
How we keep the tester useful
The product is built around clear feedback, honest limits, and low-friction troubleshooting.
Privacy-aware by design
The tester reads input events needed for the current page and does not store a log of your keystrokes for the keyboard tests.
Free to use
Core keyboard, typing, ghosting, CPS, mouse, and performance checks are available without a paid plan or sign-in requirement.
Broad keyboard coverage
Use it with laptop keyboards, external USB keyboards, Bluetooth keyboards, mechanical switches, membrane keyboards, and many regional layouts.
Clear browser limits
Some keys, such as Fn, media shortcuts, firmware layers, and system-reserved shortcuts, may not be exposed to websites by your browser or operating system.
Supported input types
KeyboardAnalyzer can show ordinary letter, number, modifier, navigation, function, mouse, and many special key events when the browser exposes them.
What the site cannot prove
A web test cannot verify electrical switch health, exact hardware latency, firmware debounce settings, or every hidden keyboard layer. Use it as a fast first check before deeper hardware diagnosis.
Last updated
This page was updated on June 2, 2026 to clarify privacy behavior, browser limitations, and the purpose of the testing tools.