Reaction Time Test - Free Online Tool | PivaBox

Test your reaction speed — click when the box turns green

How to Use Reaction Time Test

1. Click the box to start the test
2. Wait for the box to turn green (random delay 1-5 seconds)
3. Click as quickly as possible when it turns green — clicking before green counts as too early
4. Complete 5 rounds to see your average, best, and worst reaction times

Frequently Asked Questions

What is a good reaction time?

The average human visual reaction time is about 200-300ms. Under 200ms is considered excellent. Factors like age, sleep, and device latency can affect your score.

Is my reaction time saved?

Your personal best reaction time is saved locally in your browser's localStorage. It never leaves your device.

Why is there a random delay?

The random 1-5 second delay prevents anticipation and ensures the test measures genuine reaction time rather than predictable timing.