Free Codeword Puzzle Generator

Free Codeword Puzzle Generator

Printable codewords: a crossword grid where every letter hides behind a number. Start from a few given letters and crack the whole code. Every puzzle is checked to have exactly one answer, with an answer key, free and without sign-up.

Free · no sign-up · personal & classroom use

Making codeword books for Amazon KDP? Codeword Puzzle Book Generator

Style
Theme
Difficulty
Puzzles per page
Paper
Sample page — your PDF gets brand-new puzzles.

Grids up to 17×17, your own word lists, 200+ themes, book languages, Large Print and 100+ puzzles per book are in the full app.

Need a whole codeword book? Generate hundreds of codewords, each with one answer, with title pages, answer keys and KDP-safe margins.

Try it free

A codeword maker for kids and adults

Printable PDF in one click

No editor and no account: choose your options and the PDF downloads straight away, in US Letter or A4.

Exactly one answer

Every grid is solved against a large dictionary before it is printed; a grid with two possible answers gets one more given letter.

Easy to Expert

Easy grids hold 8 words with 3 letters given; Expert grids 20 words with only 2. The code key under the grid helps you keep track.

Codewords for kids

Short, friendly words in big squares with more letters given — a gentle first code to crack.

Answer key included

A solution page fills in every letter, so checking the puzzle takes seconds.

Need a whole book?

Wisdom Effect builds complete codeword books for Amazon KDP: hundreds of puzzles, your own words, Large Print, title pages and a commercial license.

How to print a codeword puzzle

  1. 1Choose classic puzzles or puzzles for kids.
  2. 2Pick a difficulty and how many puzzles go on the page.
  3. 3Keep the answer key on or off and choose US Letter or A4.
  4. 4Click Download PDF and print it.

Free codeword generator FAQ

How do you solve a codeword puzzle?

Every number in the grid stands for one letter, the same letter everywhere. Write the given letters into all squares with their numbers, then guess the words they start to form. Each new letter goes into the code key and fills more squares, until every word is found.

Is this codeword generator really free?

Yes. No account, no credit card and no watermark across the puzzles — just a small source line at the bottom of each page.

Does every puzzle have one answer?

Yes. Before a puzzle goes on the page, a solver checks every filling of the grid that the dictionary allows. If more than one works, the puzzle gets another given letter.

Can I sell these puzzles or publish them on Amazon KDP?

Not the free ones — they are for personal and classroom use only. For books you sell, create a codeword book in Wisdom Effect: books generated on paid plans and with credit packs come with a full commercial license.

Are the puzzles different every time?

Yes. Every PDF is generated from a new random code, so each download gives you brand-new grids.

Do the puzzles come with answers?

Yes. An answer page with every letter filled in is added by default; switch it off if you only want the puzzles.

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Design your KDP paperback cover online — spine and bleed sized from your page count, PDF at 300 DPI, free forever, no watermark.

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How many pages your KDP paperback will have — from word count, font and margins, or from puzzles per page and the answer key.

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Want a whole codeword puzzle book?

Generate 100+ codewords with one answer each, your own word lists, Kids and Large Print editions and KDP-safe margins. Free trial with 100 credits, no credit card.