Playoku
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Sudoku Solver from Image

Upload an image of a Sudoku, whether a photo or a screenshot, and solve it instantly. The reader extracts the grid right in your browser; nothing gets uploaded and there's nothing to sign up for.

Turn an image into a solved Sudoku

Drag in a screenshot, paste an image, or upload a photo of a printed puzzle. The reader finds the grid, recognises the printed digits and fills an editable board you can check at a glance. From there, solve it, get a hint, or step through the logic.

Built for screenshots and photos alike

Clean screenshots from apps and websites read most accurately; photos of newspapers and puzzle books work too. Any cell the reader is unsure about is highlighted so a quick check is all it takes before you solve.

Everything stays on your device

There's no server in the loop. The image is processed locally in your browser, so nothing ever leaves your device — same as everywhere else on Playoku.

Prefer to practise? Pick a level — easy, medium, hard or expert — or read the strategy guides. Other tools: solver, photo scanner, hint and checker.

How to play Sudoku on Playoku

Sudoku is a logic number puzzle played on a grid divided into boxes. Fill every empty cell so that each row, each column and each box contains every digit exactly once — 1 to 9 on the classic 9×9 grid, 1 to 4 on a 4×4 grid, and 1 to 6 on a 6×6 grid. Every puzzle on Playoku has exactly one solution and can be solved by logic alone, with no guessing required.

Features

Free to play, with no sign-up and no ads.

Frequently asked questions

Is Playoku free to play?

Yes. Playoku is completely free, with no sign-up and no ads. Just open the page and start solving.

How do you play Sudoku?

Fill every empty cell so that each row, each column and each box contains every digit exactly once. Every puzzle has exactly one solution and can be solved by logic alone.

What grid sizes and difficulties are available?

Playoku offers 4×4, 6×6 and 9×9 grids across four difficulty levels: Easy, Medium, Hard and Expert.

Can I share a Sudoku puzzle with a friend?

Yes. Use the Share button to copy a link that recreates the exact same board.