How the secret code generator works
Type a message above, for example “The treasure is under the doormat”. Then pick a secret code. The generator instantly shows an A4 sheet: the encoded message on top, and below a cut line the key to decode it. One click on “Print” and the sheet is ready. No sign-up, no waiting, nothing leaves your browser.
Six secret codes to choose from
- Symbols – every letter becomes a sign. Three sets: geometric shapes, the classic pigpen (Freemason) cipher and animals.
- Number code – A = 1, B = 2 … Z = 26, with an optional offset so A does not start at 1.
- Caesar – every letter moves a fixed number of places along the alphabet. With a cipher wheel to cut out.
- Mirror writing – real mirrored lettering, you need a mirror to read it.
- Morse code – dots and dashes like a radio operator.
- Backwards – the text runs back to front, as a whole or word by word.
For parents, teachers and kids from 7
The sheets are made for everyday use: a treasure hunt in the garden, a riddle in the advent calendar, group work in class. The key is cut off and handed over separately, so the message stays a real puzzle. The optional solution line for parents can be switched off with one checkbox so it does not end up on the child's sheet.
Print, save as PDF or share as an image
“Print” opens your browser's print dialog, where you can also choose “Save as PDF”. “Save as image” creates a print-quality PNG of the sheet – handy for sending. “Share link” puts the whole state into a link; the message then lives in the link itself and is stored nowhere.
Learn more
What a secret code is and which one suits which age is explained on Secret codes for kids. Blank key sheets for writing by hand are under Templates. And if you received a secret text, use the decoder.