Zovo Nonogram Maker
Printable nonograms with one solution and an answer key.
Zovo Nonogram Maker makes printable nonogram puzzles for teachers, students and puzzle fans: griddlers or paint-by-number logic puzzles from a built-in picture, a short word, your own pixel grid up to 25 x 25, or random grids from easy to expert. A line solver checks that the clues lead to one solution; when a picture's clues allow more than one, it prints a few starter cells, changes a few cells, or tells you which rows are unclear. The PDF has 1, 2 or 4 puzzles per page on Letter or A4 with clue numbers, a thicker line after each 5th cell, a name line and answer pages.
What it does
- 20 built-in pictures, words in block letters, or your own pixel grid
- Random puzzles from 10 x 10 (easy) to 25 x 25 (expert)
- One solution, checked by a line solver for each puzzle
- Starter cells, small changes or an error when a picture's clues allow several solutions
- 1, 2 or 4 per page, Letter or A4, title, name line and answer key pages
- Seeded, so the same seed reprints the same puzzles
Try asking
“Make a heart nonogram and a cat nonogram, 2 per page, with answer keys”
“Make 4 easy random nonograms for my class on A4, seed 12”
“Turn this pixel grid into a nonogram: ..##.. / .####. / ###### / .#..#.”
Limitations
- Grids from 5 x 5 to 25 x 25 and up to 12 puzzles per PDF
- Black-and-white nonograms only (no colour nonograms)
- Words use the letters A-Z and digits 0-9, up to 8 characters
- It does not turn a photo or an image file into a puzzle and does not solve a puzzle from a photo
- Titles print in Latin, Greek and Cyrillic letters; Chinese, Japanese, Korean, Arabic, Hebrew and emoji are left out of the PDF
Add it
ChatGPT: once Zovo Nonogram Maker is approved, add it from the ChatGPT plugin directory.
Claude: go to Customize > Connectors > Add custom connector and enter
https://nonogram-maker.zovo.one/mcp. No sign-in is needed. Once Zovo Nonogram Maker is listed in the Claude connector directory, you can add it from there too.Other MCP clients can connect to the same endpoint: https://nonogram-maker.zovo.one/mcp