About ReflexArcade

ReflexArcade is a free collection of arcade-style reflex tests: how fast you click, how quickly you react, and how accurately you aim. No accounts, no downloads — every test runs entirely in your browser, and your personal bests are stored only on your device.

How the tests work

All timing uses your browser's high-resolution clock (performance.now()), giving millisecond precision. The reaction test uses randomized delays to defeat anticipation, and false starts never count against your average.

Honest limits

Browser tests measure you plus your hardware: display refresh rate, input latency, and system load all add milliseconds. Scores are perfect for tracking your own progress on the same device, and only roughly comparable across devices or websites. ReflexArcade is a game, not a medical or cognitive assessment.

Contact

Questions or feedback? See the contact page.