Free online sudoku game

Foxy Sudoku is a free online sudoku game, ad-free, playable on smartphone, tablet and computer. Every day, we offer you new sudoku puzzles to solve online for free, one for each level of difficulty : beginner, easy, medium, hard, expert and diabolical. 😈

Choose a difficulty level
and start playing sudoku online :

About sudoku

Sudoku is a very popular logic game consisting of filling in a 9x9 grid with numbers from 1 to 9, such that each number is present only once per row, column, and 3x3 regions. Solving a free sudoku online every day will train your brain and boost your ability to concentrate !

Learn sudoku rules

How to solve a sudoku ?

Whether you are a beginner or an experienced player, to solve a free sudoku online, you will need to master the many techniques that make playing sudoku such a popular hobby. On Foxy Sudoku, we have designed for you detailed sheets explaining each of these techniques, with examples and exercises.

Discover sudoku solving techniques

Play sudoku for free

Every day, we offer you new free sudokus to solve, one for each level of difficulty. You can also play sudokus from the previous six days for free.

Play free sudokus of the day

Play sudoku online

Our sudokus are playable online from all your devices (smartphone, tablet and computer). Many features are available to you for a good gaming experience.

All online sudoku features

A step-by-step sudoku solver

Are you stuck on one of our free sudokus ? Is your favorite newspaper's sudoku giving you a hard time ? Do not panic ! Use our sudoku solver to get a detailed, step-by-step solution to your puzzle.

Solve a sudoku puzzle

A dedicated sudoku generator

Our free sudokus are generated by an algorithm developed especially for our site. We have attached great importance on creating quality puzzles, that are interesting to play, whatever your level.

Learn more about the sudoku generator