freesabaiCryptogram maker
Type a secret message, a quote, a riddle or a word of praise, and every letter turns into a code number or symbol; the same letter always has the same code. The child writes letters over the codes until the message can be read, with a code table to keep track and a few letters given to start.
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The sheet you make is yours: use it in class, print and sell it or sell the file, no credit needed. Everything is made in your browser; the text is not sent anywhere or kept, and it is gone when you close the page.
How to use it
- Type 1-10 lines (up to 120 characters each). Choose numbers or symbols for the code and how many letters to give as hints.
- "New random sheet" draws a new code. The hint letters are filled in wherever they appear, in the message and in the code table.
- Press "Print / Save as PDF". The key fills in every box and gives the message in full.
Good to know
- Capitals and small letters share a code (A and a are the same). Spaces, digits and punctuation stay as they are, which helps to guess short words.
- Thai is coded letter by letter: a consonant, a vowel, a tone mark and the silent mark each get a code of their own (not a whole cluster). Marks written above or below show on a dotted circle, like ◌่, when given as hints and in the key.
- There are 50 symbols; a message with more different letters than that uses numbers instead, and the page says so. For other word puzzles try the double puzzle or the crossword.
Report a problem or suggest an idea
Want another kind of code, such as a shift cipher or pictures for letters? Tell us on the feedback page.
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Questions and answers
How does the code work?
Each letter gets a number or symbol of its own, the same everywhere it appears; capitals and small letters share a code. Spaces and punctuation stay. New random sheet draws a new code.
How is Thai coded?
Letter by letter: a consonant, a vowel, a tone mark and the silent mark each have a code, not a whole cluster, so Thai text uses more codes than English. Give 4 hint letters for young children.
How do the hints and the code table work?
The hints are 0, 2 or 4 letters given, filled in wherever they appear. The code table under the message has a box under every code to note the letters found. The key fills in the whole table.
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