Sudoku, without the nonsense.

Ceedoku is a free, lightweight, open-source Sudoku game designed to give you a simple and powerful Sudoku experience.

Why Ceedoku?

                No ads
                
                    Play Sudoku without advertisements getting in the way.

                Works offline
                
                    Install Ceedoku and play even without an internet connection.

                8 difficulties
                
                    From Easy all the way up to Godlike.

                Game saving
                
                    Save your game and continue it later.

                Dark & light mode
                
                    Choose the appearance you prefer.

                Hints
                
                    Get help when you need it, with hint cooldowns.

What is Ceedoku?

Ceedoku is a free, lightweight, and open-source Sudoku game made by Ceebug. It is designed to fit your needs while using as few resources as possible, allowing Ceedoku to run on a wide range of devices.

With multiple difficulty levels, hints, saving, dark mode, animations, haptics, sound effects, and more, Ceedoku gives you a simple yet powerful Sudoku experience.

Get Ceedoku

Play Ceedoku directly in your browser, install it as an app, or download the executable version for your OS.

Latest Release

9.0.0

Released 23 August 2026

Open source

Ceedoku is open source and its source code is publicly available on GitHub. See how Ceedoku works, browse the code, report issues, or follow development.