Inspired by Edgar Allan Poe's short story, The Gold Bug, this tool lets you create simple substitution ciphers or "cryptograms". Type or paste your message in the first box, generate a NEW KEY, then click ENCODE. Your encoded message will appear in the bottom box.
Spaces and punctuation are removed, just like in Poe's story. To see an example, you can click the links for Poe's text and Poe's key. This will generate the same cryptogram used in the story.
Share encoded messages with your friends and see if they can decode them without the key. If you need help, read the The Gold Bug. A character named Mr. Legrand teaches you how to solve cryptograms and ciphers by looking at the patterns of characters.