Games
Sudoku
Play a compact number puzzle with instant validation.
Level 1 - Easy
Your result
How it works
A quick browser game
This game runs entirely in your browser. Choose Easy, Medium, or Hard, then continue through unlimited levels at your own pace.
Questions answered
Frequently asked questions
Is the Sudoku free to use?
Yes. The Sudoku is free to use and does not require an account.
Does the Sudoku save my input?
No. Your input is processed in your browser and is not sent to a FreeToolGrid application server.
How accurate is the Sudoku?
The tool applies the stated calculation or conversion to the values you provide. Verify decisions involving money, health, tax, or legal matters with an appropriate professional or primary source.