Sudoku online — play anywhere, instantly
Sudogku brings classic 9×9 Sudoku to the web with a modern, touch-friendly interface. No app store, no plug-ins — just open the site and play Sudoku online from your phone or computer.
Built for browsers and mobile
Sudogku is designed for one-thumb play on phones and comfortable solving on larger screens. The number pad, notes toggle, and highlight system stay within easy reach whether you're on the couch or at a desk.
Install as a progressive web app (PWA) for offline-ready launching from your home screen — the closest thing to a dedicated Sudoku app without leaving the browser.
Solo Sudoku with depth
Start a quick Easy board on your lunch break or grind Expert and Master puzzles when you want a challenge. Resume in-progress games anytime from the Play tab.
Track weekly games, time played, mistakes, and a difficulty climb score on your personal dashboard.
More than single-player
When you want company, jump into multiplayer Sudoku: co-op on one shared grid or competitive mode where both players race to claim squares. Share a short room code — no account required to try a match.
Frequently asked questions
- Is Sudogku free to play?
- Yes. Sudogku is completely free — play unlimited Sudoku puzzles online in your browser with no download or subscription required.
- Can I play Sudoku with a friend online?
- Yes. Sudogku supports real-time multiplayer Sudoku. Share a room code to play co-op on one puzzle together or compete to fill the most squares.
- What Sudoku difficulty levels are available?
- Sudogku offers Easy, Medium, Hard, Expert, and Master puzzles. Each board is freshly generated with a unique solution.
- Does Sudogku work on mobile?
- Yes. Sudogku is built for phones and tablets. You can also add it to your home screen as a PWA for an app-like experience.