Odd or Even

Odd or even? Let a random number decide

DITHER rolls a number from 1 to 100 and tells you whether it's odd or even — a fair alternative to a coin flip when you want to see the number too.

DITHER uses your browser's cryptographically secure random number generator (crypto.getRandomValues), so every result is independent and unbiased — nothing is pre-decided or stored before you tap.

Great for

• Odds-and-evens hand games
• Deciding turns
• A 50/50 pick with a visible number
• Classroom maths warm-ups

FAQ

Are odd and even equally likely?

Yes. Between 1 and 100 there are exactly 50 odd and 50 even numbers, each equally likely.

Can I see the number that was rolled?

Yes, the number appears under the result so everyone can check.