Nonogram
Fill cells from number clues to reveal the hidden pattern — every puzzle has a code you can replay and share.
Puzzle preview
This is an example board. Starting creates a new puzzle with your settings.
Start a new puzzle with these settings
Current settings: 10×10 · Easy
Use the row and column clues to decide which cells to fill or leave empty. Every new Nonogram here is checked to make sure you can solve it by comparing those line clues. Build on confirmed cells to complete the pattern without guessing.
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Open with a code
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Picture puzzles
Hand-made puzzles that reveal a picture when solved. The picture stays a secret until you finish!
0/14 complete
How it works
- Pick a grid size and difficulty, or paste a shared puzzle code, and press Start.
- The numbers on each row and column give the lengths of the consecutive filled runs in that line. Fill the cells you can prove, mark the rest with X, and narrow it down. Drag to paint several cells at once.
- When you finish, save your time to the rankings, share the exact puzzle by link or QR code, or print it on A4 with an answer sheet.
Frequently asked questions
What is a nonogram?
A nonogram is a logic puzzle where the number clues on the rows and columns tell you which cells to fill, and the filled cells gradually reveal a hidden picture or pattern. Each number gives the length of a consecutive run of filled cells in that line. Nonograms are also known as griddlers.
Is it free? Do I need an account?
Completely free, with no sign-up and no install. Puzzles are generated right in your browser, and there is no limit on how many you solve or print.
Will I ever have to guess?
No. Every puzzle is verified at generation time to be solvable from start to finish using row and column logic alone. You can always prove the next cell without guessing.
Can I print puzzles on A4? With answers?
Yes. Each sheet fits one clued puzzle on a single A4 page, and the answer sheet is included by default. There is also a Large print option for seniors and younger kids.
Print nonogramsHow do I race someone on the same puzzle?
Every puzzle has a code that carries the whole board. Send the link or QR code and the other person plays the exact same puzzle, with a global leaderboard just for that puzzle. There is also a weekly challenge that opens ten fresh puzzles across every size and difficulty.
What are picture puzzles?
Hand-crafted boards that reveal a picture when solved: a heart, a cat, a rocket, and more. They play exactly like regular puzzles and can be solved with logic alone. The picture stays a secret until you finish, so the cards show only the name and size.
Is anything stored on a server?
Playing works entirely in your browser: preferences and puzzles in progress stay in your browser’s local storage, and finished records are saved there automatically the moment you finish. Only when you choose “Post to global rankings” are your nickname, record, and puzzle code stored on our server and shown publicly.