Reaction Test
Wait for the red box to turn green, then tap as fast as you can. Tapping too early restarts the round. Your best time is saved on this device only. Times include your screen and input delay, so compare scores only on the same device.
Tap to start
- Last
- –
- Average (last 5)
- –
- Best
- –
When the box turns green, tap it as fast as you can. Results include your screen and input delay, so compare scores only on the same device.
Controls
- Click, tap, or press Space or Enter on the large box.
- The wait before green is random, between about 1.5 and 4 seconds.