Cipher puzzle
Create hidden-message substitution puzzles.
Convert custom sentences into substitution puzzles. Good for warmups, challenge tasks, and hidden-message activities.
- Write a sentence, quote, or lesson message.
- Generate a coded version for students to solve.
- Export the puzzle with the decode map for checking.
What to expect
Sample cryptogram
- Plain: Practice every day
- Code: Qvdlskdf hyhvb gdb
- Export: puzzle + decode map
Try another tool
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Encode short texts with a symbol legend so learners decode letter by letter. Built for beginner-friendly code-breaking worksheets.