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Click as fast as you can when the screen changes.
Wait for the green signal, then click as fast as possible.
Your reaction time is measured in milliseconds.
Five rounds, best time wins.
Test your reflexes with the free Reaction Test online. Wait for the screen to change color, then click as fast as you can. Compare your reaction time in milliseconds and beat your personal best. It is aimed at players aged 6+ and up, and a typical round takes around 1 minute. If you already enjoy Reflexes, speed and High score games, you will feel at home here within seconds.
The goal is straightforward. The on-screen instructions walk you through it, and you can start playing with a single click. Controls are intuitive: use your mouse or keyboard on a computer, or tap and swipe on a phone or tablet. Because everything runs locally in your browser, Reaction Test reacts instantly and never needs a page reload.
It trains hand-eye coordination and reaction time — skills that carry over to many other games.
Hard to say? It is rated Easy, aimed at ages 6++ and above, and takes about 1 minute per session — a good fit for a coffee break, a commute, or a relaxed evening. It works equally well on desktop, laptop, tablet and phone, with no account and nothing to install. Keep an eye on your best score: it is saved on your device so you can measure your progress over time.
No. Reaction Test runs entirely in your web browser. There is nothing to install and no account to create.
Yes. The game is responsive and touch-friendly, so it works on phones, tablets, laptops and desktop computers.
It is recommended for ages 6+ and is family-friendly, with no chat and no in-game purchases.
A typical round lasts around 1 minute, so it fits easily into a short break.
It is rated Easy. The rules are explained on the page, and most players are comfortable within their first round.
Yes. Your best score is stored locally on your device, and finished runs can be submitted to the live leaderboard.
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