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Cryptogram Maker

Type a phrase and this cryptogram maker swaps every letter for a different one - consistently, and never for itself - leaving spacing and punctuation intact so the puzzle still reads like a sentence.

Shuffle for a fresh code, reveal the answer key when you need it, then copy or print. Handy for classrooms, party games, cards and treasure hunts.

From the makers of this tool

Love words? You'll love Decode.

Crack hidden phrases symbol-by-symbol, climb the Temple Ascent, and race the daily cipher. Hand-crafted puzzles, no ads.

Free on the App Store · iPhone & iPad · No ads.

Decode gameplay - decoding a hidden phrase
From the makers of this tool

Love words? You'll love Decode.

Crack hidden phrases symbol-by-symbol, climb the Temple Ascent, and race the daily cipher. Hand-crafted puzzles, no ads.

Free on the App Store · iPhone & iPad · No ads.

Decode gameplay - decoding a hidden phrase

Frequently asked questions

How does this cryptogram generator work?

It builds a random substitution alphabet - every letter is assigned a different letter, and no letter can map to itself, since a letter standing for itself would give the solver a free clue. Your spacing, punctuation and capitals are preserved.

Can I print the cryptogram?

Yes. Press Print and the puzzle prints on a clean sheet. Reveal the answer key first if you want it included, or leave it hidden to print the puzzle alone.

How do I make a cryptogram harder?

Use a shorter phrase - frequency analysis needs volume to work, so brief puzzles are tougher. Avoiding one-letter words (A, I) and very common words like THE also removes the usual footholds.

Where can I get ready-made puzzles?

Our printable cryptogram sheet has a dozen famous quotations with answers, ready to print. Or play a fresh one daily in Decode.