Reflex Bits

Quick reaction and reflex tests

Reflex Bits is a set of small tests for speed, nerve and perception - clicks per second, how long you can hold steady, and how well you remember a colour. Each one runs in your browser and takes under a minute.

All sites

• Age GeekEnter your birthday and discover what famous people achieved at your exact age.
• Chroma EyeStudy a shade for five seconds, then rebuild it from memory with red, green and blue sliders.
• Click Speed TestFree online click speed test to measure your CPS (clicks per second).
• Hold SteadyHold Steady is a free endurance game built around one button.