Free, open-source puzzle book maker for KDP
Make print-ready word search, sudoku and maze interiors, laid out to Amazon KDP’s trim, margin and bleed rules. It all runs in your browser.
Start with one puzzle or a whole book
Puzzle makers
Make one word search, sudoku or maze, then print it or save it as a PDF.
Book builder
Pick a trim size, puzzle type, difficulty and count. Get one KDP-ready interior PDF, solutions included.
KDP calculators
Spine width, full cover size and interior margins for every KDP paperback trim size.
Free to use, and free to sell
No cost, no account
Every tool and every PDF is free. There is nothing to sign up for.
Runs in your browser
Puzzles and PDFs are made on your device. Nothing is uploaded.
Commercial use allowed
Puzzles you generate are yours, including in books you sell on Amazon.
Open source
The app is AGPL-3.0 and the puzzle engines are MIT. Read or fork the code.