Convert to binary
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Press Start
your byte 0
0000 0000
SCORE0
LEVEL1
STREAK0
BEST0
How it works
• A random decimal (0–255) appears. Flip the 8 bits so your byte equals it.
• Bits run MSB → LSB (left = 128, right = 1). Example:
• Match the number to score and a new one appears.
• Longer streaks earn bonus points.
• Every few rounds the level rises.
Controls
• Click / tap a cell to toggle it.
• Keys 1–8 toggle bits left → right.
• Backspace clears all bits, Space starts the game.
Goal — practice fast decimal → binary conversion.
• A random decimal (0–255) appears. Flip the 8 bits so your byte equals it.
• Bits run MSB → LSB (left = 128, right = 1). Example:
37 → 0010 0101.• Match the number to score and a new one appears.
• Longer streaks earn bonus points.
• Every few rounds the level rises.
Controls
• Click / tap a cell to toggle it.
• Keys 1–8 toggle bits left → right.
• Backspace clears all bits, Space starts the game.
Goal — practice fast decimal → binary conversion.