Free Unlimited puzzles No sign-up Family friendly
Play free Sudoku online
Pick a difficulty and start a new puzzle in one click—notes, hints, and undo included.
Pro Sudoku generates every grid on demand with a unique solution. Play in your browser with no account.
Choose your level
Did you know?
When you pick a level, we build a fresh puzzle on the spot—so you are not replaying the same short list of grids.
Harder levels use fewer givens and reward techniques like pairs, triples, and X-Wing instead of trial and error.
Use notes to track candidates in each cell and spot patterns like hidden singles and pointing pairs.
Quick questions
Yes. No payments or sign-up—play as much as you like.
Yes. Family friendly, with no inappropriate content.
No—open the site and choose a difficulty.