Sudoku Solver
Drop a screenshot of any Sudoku board, extract the digits with AI-powered image analysis, and solve the puzzle — all in your browser, with nothing uploaded to a server.
Overview
Built for real puzzles from newspapers, apps, and photos: upload a PNG, JPG, or WEBP, run extraction, review the grid, and solve in one flow. OpenCV runs locally for board detection; a tuned digit pipeline reads each cell from the photo.
Works best on digital boards.
Extraction is tuned for screenshots of digital Sudoku — clean black-and-white grids
with standard fonts — where it reads existing numbers reliably before you hit Solve.
- Drag-and-drop or click to upload a board screenshot
- Extract → review clues → solve, with auto-corrected cells highlighted
- 100% client-side — no server upload
Live app
Try the solver below or open it in a full tab for a larger board view.