🎨 Nonogram Online: Online Image Transformation Generator

How to play Nonogram

It only takes 3 steps to turn any image into a professional level puzzle:

① Upload the image

② Automatically generate the grid

③ Start solving the puzzle!

It supports real-time editing, intelligent clue generation and mobile adaptation, and is the best tool for number weaving enthusiasts and puzzle designers.

FAQs

What is Nonogram?

Nonogram is a logic puzzle game where you fill in a grid with digital clues...

What image formats are supported?

JPG/PNG formats are supported, and high-contrast images are recommended...

Is there a size limit for uploaded images?

While there's no strict size limit, we recommend using images under 5MB. The tool will automatically resize images to 20x20 pixels for Nonogram conversion.

Can I edit the generated Nonogram?

Yes! Click any cell to toggle between filled/empty states. The row/column clues will update automatically as you make changes.

Is my image data stored?

No. All image processing happens in your browser. We never upload or store your images on our servers.

Why do some complex images not convert well?

Detailed images may lose clarity when reduced to 20x20 grids. For better results, try simplifying images or using vector graphics before conversion.

Can I save/share my Nonogram?

Currently, you can screenshot the grid. We're developing export features for PDF and image formats (coming soon!).