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About Sudoku

Play unlimited Sudoku puzzles with automatic generation. Choose difficulty levels, use hints when stuck, and check for errors. Classic number logic puzzle.

How to Use

  1. 1Select difficulty level
  2. 2Fill in numbers 1-9
  3. 3Each row, column, and 3x3 box must contain all digits
  4. 4Use hints or error checking if needed

Key Features

  • Auto-generated puzzles
  • Multiple difficulty levels
  • Hint system
  • Error highlighting
  • Notes mode for candidates
  • Undo/redo

Common Use Cases

Number logic practiceBrain trainingRelaxation gamingDaily puzzle routine

Privacy First

All processing happens directly in your browser. Your files never leave your device and are never uploaded to any server.

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