Nonogram Solver
Stuck on a nonogram from a puzzle book, app, or another site? Enter its row and column clues below and this tool will solve it for you using the same logic engine that powers every puzzle on Nonogram Hub — or switch to "try it yourself" and solve it on an interactive board with the same fill/mark tools used across this site.
One line per row, numbers separated by spaces (e.g. "3 1"). Leave a line blank for an empty row.
One line per column, numbers separated by spaces. Leave a line blank for an empty column.
FAQ
How do I enter clues from a puzzle book?
Set the width and height to match the puzzle's grid, then type each row's numbers on its own line in the row clues box (in order, top to bottom), and each column's numbers on its own line in the column clues box (left to right). Separate multiple numbers in the same line with a space, like "3 1".
What if my puzzle doesn't have a unique solution?
A well-formed nonogram always has exactly one solution. If this tool reports more than one, either a clue was mistyped, or the source puzzle itself is flawed — double-check the numbers against the original.
Is there a size limit?
The solver is capped at a few seconds of computation to keep this page responsive for everyone. Very large or deliberately ambiguous grids may time out — most real puzzle-book nonograms solve in well under a second.
Can I solve the puzzle myself instead of having it solved for me?
Yes — after entering your clues, use "Try it yourself" to get the same interactive grid used across this site, with fill and mark tools, on your own puzzle's clues.
Can I print this puzzle?
Yes — after entering your clues, click "Download printable PDF" to get a blank grid with the clues laid out for solving on paper. If the puzzle has a unique solution, you can also download a version with an answer key on a second page.