Dive into the world of cryptography. Test your mind with challenging puzzles, master the art of ciphers, and have non-stop fun decoding hidden messages.
PLAY NOWThe classic monoalphabetic substitution cipher. Each letter is replaced by another unique letter. Original spacing and punctuation are preserved to give you hints.
A harder variant of the Aristocrat. Spaces and punctuation are removed, and the text is grouped into 5-letter blocks. Pure deduction required!
A simple substitution cipher where the alphabet is reversed. A becomes Z, B becomes Y, and so on. Perfect for warm-ups and spotting patterns.
A steganographic cipher where each letter is replaced by a 5-character sequence of As and Bs. Based on the classic 24-letter alphabet.