Cryptogram maker

Type a sentence and every letter is swapped for a number on the spot. Players crack the code letter by letter until your message appears.

Reveal the vowels, the most common letter, or a set of letters you pick yourself — free starters that make the code crackable for younger players.

Swap the numbers for pictures — one per letter of your sentence. Letters without a picture keep their number.

Decide exactly which characters get a code of their own — add accented letters for your language, or trim the list down.

Keep the key to just the characters your sentence actually uses, so a short puzzle is not buried under a full alphabet.

Correct letters are confirmed the moment they are filled in, instead of only when the player checks the whole puzzle.

Players can challenge each other and crack the same code head to head.

Open a ready-made example and play it exactly like your players would.