Reaction time test

Click the moment the panel turns green — measure your reflexes over attempts.

Timed in this browser. Nothing is sent anywhere.

Measures click latency including your device and display refresh — not a clinical reflex test. Up to 20 attempts are kept; taps under 80 ms count as early.

How to use

  1. Press start.
  2. Wait for the panel to turn green.
  3. Click as fast as you can.

What it supports

Measures click latency including device and display delay — a rough self-check, not a clinical test. Up to 20 attempts kept.

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