Flashing Number Generator

Flash random digits one group at a time, then type back what you saw. To compete against friends with automatic scoring, try Memory League.

Settings

Digits

10204080

Custom number of digits, 1 to 10,000

Group size

123456

Speed

Seconds per flash, 0.25 to 20s per flash

Blank between flashes

On

Start

Enter to start · Esc to stop · Space to pause

Press Start. Groups of 2 will flash for 2.00 s each.

10 digits in 5 flashes, about 11 s.