Sudoku
Play a freshly generated Sudoku with a guaranteed unique solution, in four difficulty levels — or paste your own puzzle and let it solve. Conflicting rows, columns and boxes highlight instantly, with pencil marks, a hint button, undo and a timer. Works offline.
Runs in your browser
Real-time
Sudoku
Time
00:00
Empty
0
Hints
0
Mistakes
0
About this tool
Play a freshly generated Sudoku with a guaranteed unique solution, in four difficulty levels — or paste your own puzzle and let it solve. Conflicting rows, columns and boxes highlight instantly, with pencil marks, a hint button, undo and a timer. Works offline.
How to use
- Fill in the input box above, or click "Fill sample" to try it instantly
- Adjust the options as needed — results update as you type
- Click "Run" to get the result, then copy or export it in one click
Tips
- Runs entirely in your browser — your data never leaves the device
- Completely free, no registration, no usage limits
- Most tools compute in real time as you type