Toolkit
Keyboard testing tools.
A complete set of free, browser-based tools to test, diagnose, and benchmark any keyboard — no drivers, no downloads, and nothing you press ever leaves your device.
Test your keyboard
Keyboard TesterPress every key and watch it light up — the fastest way to find a dead, stuck, or unresponsive key.
Anti-Ghosting / NKRO TestHold several keys at once to see how many register together and whether your board does N-Key Rollover.
Event LoggerInspect the raw key, code, keyCode, location, and modifier flags for every event — and catch key chatter.
Shortcut TesterCheck that key combinations like Ctrl+Shift and Alt+Tab register the way you expect.
Polling Rate TestEstimate your keyboard’s report rate in Hz from the timing of your keystrokes.
Keyboard Latency TestMeasure input-timing jitter to spot wireless, USB, or background-load delays.
Typing & speed
Typing Speed TestMeasure your words per minute (WPM) and accuracy on the keyboard you actually use.
CPS / Click Speed TestMeasure your clicks per second — click or mash the spacebar as fast as you can and beat your best.
Reaction Time TestClick or press the instant the screen turns green — measure your reflexes in milliseconds.
Mouse & pointer
By keyboard type
Laptop Keyboard TesterCheck every key on your laptop for dead, stuck, or repeating keys in seconds. Works on Windows, macOS, and Chromebook — no download, nothing uploaded
Mechanical Keyboard TesterTest every switch, catch chatter and stuck keys, and confirm N-key rollover on your mechanical keyboard — right in the browser. Nothing is installed or uploaded
Gaming Keyboard TesterTest anti-ghosting, N-key rollover, and polling rate so every input lands mid-game. Free, in-browser, and nothing to install
Get involved
Help shape the toolkit
Everything here is free and open source. Suggest a new tool, report a bug, or just say hello — it all runs through our GitHub.