Reaction Time
Tap when the screen turns green. Tap during red and you fail that round. Average human reaction time is around 250 ms — try to beat it!
Reaction Time
★4.6(40,634 ratings)·1.8M plays·skill
How fast are your reflexes? Wait for green, then tap. Track your best time and 5-round average.
Frequently asked questions
Is Reaction Time free to play?+
Yes, Reaction Time is 100% free on GamelyByte. No downloads, no signup, no ads inside the game. Just open the page and play.
Can I play Reaction Time on mobile?+
Absolutely. Reaction Time works on Android phones, iPhones, tablets, and desktops. The game scales to fit your screen and supports both touch and keyboard controls.
How do I play Reaction Time?+
Tap, click, or press Space
Do I need to install anything to play Reaction Time?+
No installation required. Reaction Time runs directly in your browser using HTML5 — works in Chrome, Safari, Firefox, Edge, and any modern mobile browser.
Can I save my progress in Reaction Time?+
Your best score is saved in your browser automatically. Clearing your browser data will reset it. We don't require an account.
