Generate word searches, sudoku, mazes, cryptograms and crosswords, then assemble them into a real book: title page, sections, page numbers, answer keys. When it looks right, export a KDP-compliant interior PDF and a matching full-wrap cover, with the spine width already correct for your page count.
No uploads, no account. Free forever for single puzzles, and your books never leave your computer.
Made for KDP low-content publishers, Etsy printable sellers, teachers and homeschoolers.
Not publishing anything? The 342 printable puzzles are free for classrooms and activity groups.
We publish the KDP paperback specs we build to — gutter tiers, the interior-versus-cover bleed difference, spine width per paper stock. Our own build fails if the published figures and the export engine ever disagree.
Both of these were generated by PuzzleBindery, not drawn for this page. The cover is the full wrap Amazon asks for, and the spine width below was calculated from the book’s own page count.
Full wrap cover — back board, spine and front board in one file, exactly as Amazon asks for it.
8.5″ × 11″ · 84 PP · WHITE · SPINE 0.189″
An interior page exactly as it prints — large print, mirrored margins, the KDP gutter for this page count, and the answer key generated alongside it.
Want the real thing? Download a finished 32-page book exported straight from the studio, solutions and all.
Each generator outputs crisp vector pages with an answer key. Sudoku is verified to have exactly one solution, and every maze has exactly one path. Every miniature below was generated by the same code that sets your book.
Themed word lists hidden across, down, diagonally and backwards, printed with a marked answer key at the back of the book.
One entrance, one exit, and exactly one route between them — a property of how the maze is carved, not something checked afterwards.
Graded easy to expert. Every grid is checked to have exactly one solution.
Numbered, interlocking answers from a written clue set, or your own.
Fit the whole word list into the interlocking grid. No clues needed.
Every letter is a number. Crack the code from the starter letters in.
Each letter swapped for another, with starter letters you control.
Unjumble the letters. Prints with a ruled answer line under each word.
A word search built from digits, for solvers who find letters tiring.
Any combination of the nine can sit in one book, in sections you name.
Every letter is a number. Crack the code from the starter letters in.
13 KDP trim sizes from 5×8 to 8.5×11, mirrored margins, gutters that step with page count, optional bleed. The preview and the PDF are drawn by the same code, so what you see is exactly what prints.
Sections, dividers, title and copyright pages, “this book belongs to”, a how-to-solve page, numbering and a compact solutions section, all assembled for you.
From “Fabulous Fifties” to “Baby Shower”, plus 138 public-domain quotes for cryptograms and 10 ready-made crossword clue packs. Or paste your own lists and make it yours.
A dedicated typography theme built on Atkinson Hyperlegible, the font the Braille Institute designed for low-vision readers. Large print is the best-selling puzzle niche on Amazon.
Four templates, nine palettes, cover art matched to your puzzle mix. Spine width comes from the live page count and paper stock, so the cover can never drift out of sync with the interior.
Generation and PDF export run entirely in your browser. No accounts, no uploads, no cloud. Your niches, your word lists and your books stay yours.
The sample book takes 60 seconds. Your first real book might take an afternoon.
“50 Word Searches”, “Sudoku Easy to Expert”, “Large Print”, “Kids Activity Book”, or start from a blank page.
Add 200 puzzles in one click. Tweak any puzzle’s words, difficulty or layout with a live page preview.
One click gives you a print-ready interior and cover for Amazon KDP. Selling printables? Single puzzles export in US Letter or A4, as PDF, PNG or JPG at 300 DPI.
Four things you can verify for yourself, right now, without giving us an email address or a card number.
Build a complete book, preview every page, export a watermarked proof — free, no account, no time limit. Pro removes the watermark so you can sell it. You will know exactly what you are buying before you buy it.
If the files don’t work for you, email [email protected] within 30 days and you get your money back. One person reads that inbox and it is the person who built this.
Every KDP figure the export engine uses is written out on the specs page — gutter tiers, bleed, spine width per paper stock. A build fails if the published numbers and the engine ever disagree, so the page cannot quietly drift from what the tool actually does.
The cover and interior page further up were generated by the engine, not mocked up for this site. There are 342 printable puzzles you can inspect and print right now, and a finished 32-page book exported straight from the Studio.
Launch price. Going up to $79 when the launch ends — buy at $49 and it stays $49, including every future update.
Build the whole book free. Pay when you want to sell it.
No signup, no card, no time limit. The free tier never expires.
Preview every page and export a watermarked proof of the finished thing.
The launch price while it lasts, then $79. The watermark comes off, the commercial licence is yours, and you keep 100% of royalties.
Book Bolt keeps its puzzle generator on the Pro plan, at about $20 a month — roughly $240 a year, every year. A typical puzzle paperback earns $3 to $4 in royalties per copy, so about a dozen sold copies covers this licence for good.
Launch price, regularly $79. Every update to the version you buy, free, forever. 30-day refund, no argument.
Yes. PuzzleBindery encodes KDP’s published interior specs: trim sizes, mirrored margins, the gutter steps at 151/301/501 pages, bleed dimensions and the 24-page minimum. The export dialog confirms compliance for your exact page count, and KDP’s own previewer gives the final green light.
Three ways. Book Bolt puts its puzzle generator on the Pro plan at about $20 a month, so the tools you are comparing cost roughly $240 a year for as long as you publish; this is one payment. It runs entirely in your browser with no uploads or accounts. And it makes the whole book: interior, solutions and a full-wrap cover with the spine width calculated for you.
Every puzzle is generated fresh from a random seed, so no two books are alike. Pro includes a full commercial licence: publish on KDP, sell printables on Etsy, use them in your classroom, keep every penny.
No. If you can fill in a form, you can make a book. The interior is generated for you, and the built-in cover designer produces the full wrap (back, spine, front) sized to your exact page count. Pick a template and a palette and you are done.
There is no server. Books save in your browser and to backup files on your disk. The only network calls are loading the app and (optionally) validating a license key.
Really. One payment, and every update to the version you buy is free for as long as you use it. If a separate major edition ever appears, buying it stays entirely optional and the version you own keeps working, unchanged, forever.
No. Every grid is built by a deterministic algorithm from a random seed, the way puzzle books have been made for decades, and checked before it renders: sudoku for a unique solution, mazes for a single path. If anyone asks how your puzzles were made, the honest answer is “by an algorithm”, which has always been the answer.
I built PuzzleBindery to publish my own puzzle books without paying another subscription. The first book I made with it went through KDP review on the first upload with no corrections, which honestly surprised me. The same engine generates the free printable library that teachers and care-home activity coordinators use, and their requests keep shaping what gets built next.
If something is broken, confusing or missing, tell me: [email protected]. A person reads it.
Rolf · Eriksen Labs
Start with the sample book, a finished 25-puzzle collection you can open and export right now.
Open PuzzleBindery, free