Free Nonogram Generator — Printable Picross & Griddlers

What Is a Nonogram?

A nonogram — also called Picross, Griddler, Hanjie, or a paint-by-number puzzle — is a grid where the numbers beside each row and column tell you the lengths of the filled runs in that line. By cross-referencing the row and column clues, you shade in the correct squares and reveal a hidden picture. Nonograms are pure logic: a well-made one can always be solved by reasoning, never by guessing. They’re a high-value, low-competition niche — most sites only offer static PDF collections, not a real customizable generator.

How Our Nonogram Generator Guarantees a Unique Solution

Every puzzle is built with a generate-and-verify loop. We create a random picture, derive its row and column clues, then run a constraint-propagation line solver over those clues. We only keep the puzzle if the solver reconstructs the entire grid by logic alone — which proves the solution is both unique and reachable without guessing. If a candidate can’t be solved logically, it’s discarded and we try again.

How to Make a Printable Nonogram with PuzzlePage

1. Pick a difficulty — Easy (5×5), Medium (10×10), or Hard (15×15).
2. Choose how many puzzles — up to 5 per batch free; bigger batches after a one-time email confirmation.
3. Pick a paper size — Letter, A4, or KDP-ready 6×9 / 7×10.
4. Click Generate and toggle Show solution to preview the finished picture.
5. Download the PDF — each blank puzzle is followed by its answer key.

Frequently Asked Questions