Red Reflex

Red Reflex is a lightweight reaction time test you can play in under a minute. It’s designed to measure how quickly you respond to a clear visual cue: the screen flashes red, and your job is to tap immediately.

Each run is Best of 5. After every round you’ll see your result in milliseconds, plus your average for the current run. Early taps count as “Too soon” so the game stays honest and you can’t “pre-click” your way to a fast time.

Your Personal Best is stored locally on your device (in your browser) so you can track improvement over time. It’s not tied to an account, and we don’t ask for logins, emails, or payments—just play, practice, and compare scores with friends.

Want more details about how it works and what data is collected? Read the About page, or check the Privacy Policy.