Nonogram Solver
Enter row and column clues, detect inconsistencies and verify uniqueness.
Runs in your browser — nothing is uploadedPreparing your local workspace…
Choose the size and Load new sample first. Enter one line per row/column, with comma- or space-separated runs. Use 0 for an empty line.
Zoom for larger touch targets; scroll the board to reach every cell.
Progress and scores stay on this device. Return to this page to continue; no account or game server is required.
How to use Nonogram Solver
- Recreate the board or enter your clues; incomplete input stays local.
- Use the visible controls, keyboard or touch; Undo reverses the last move.
- Run the local search and read whether its conclusion is proven.
Questions
What are the Nonogram Solver rules?
Use one line per row or column. Zero means no filled cells. The solver distinguishes a unique answer, multiple answers and an inconclusive search limit.
Are my puzzle inputs uploaded?
No. The board, clues and searches stay in this browser. Only safe categorical tool events may be recorded; puzzle contents, solutions and move history are never sent to analytics.
How does local progress work?
This page restores its own saved board, score and recent undo history when browser storage is available. Clear site data to remove it. It never automatically opens from the homepage.
Are new Nonograms unique?
Game boards are checked for exactly one solution before play. Custom solver clues may have no solution or several; the result reports what the bounded search proves.