Printable puzzle
Generate a Hard cryptogram, print it with hint letters showing, and keep the on-screen answer hidden until players finish.
Generate a Caesar-shift cryptogram from a built-in mystery message or your own text, with difficulty-based hint letters and a printable answer key.
Generate a Hard cryptogram, print it with hint letters showing, and keep the on-screen answer hidden until players finish.
Type your own short mystery message and generate a puzzle from it instead of a built-in one.
No. It always uses a Caesar shift (a fixed number of letters forward in the alphabet) based on the difficulty you choose, not a random letter-for-letter substitution.
Yes. The Copy button always includes the plain-text answer in the copied text, regardless of the Show Answer toggle, so review the copied text before handing it to players.
Yes. Enter up to 90 characters of custom text and it replaces the built-in message in the generated puzzle.
Encode or decode a message using Caesar, Atbash, ROT13, Morse code, or symbol substitution, with instant on-screen output and one-click copy.
Generate a deterministic, logically solvable mystery puzzle with suspects, statements, evidence, hints, answer, and explanation.
Unscramble AI-generated mystery word lists with 100 words per difficulty, hints, score, printable list, and answer key.
Try MurdSearch, Murder Mystery Cases, and Mystery Sudoku — three ways to crack a case.
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