Free sudoku maker
Generate a printable sudoku in seconds, pick a difficulty and download a PDF with the solution. No signup, no watermark. Every puzzle has a single, unique answer.
Free, and it stays free
Generate and print as many puzzles as you want. No account, no email, no watermark, and nothing to upgrade to.
One answer, no guessing
Every grid is checked for a single valid solution, so it can always be solved by logic, right up to Expert.
Easy on the eyes
A large grid with thick box lines that stays legible in pencil. Prints cleanly on US Letter or A4 with the solution.
How to make a sudoku
- 1
Pick a difficulty
Easy, Medium, Hard or Expert. Harder puzzles simply start with fewer numbers filled in.
- 2
Press New puzzle
Every press generates a fresh grid with exactly one valid solution.
- 3
Check the answers
Turn on Show answers to see the finished grid before you print.
- 4
Print it
Press Print for a PDF with a large, easy-to-write-in grid and the solution.
Questions, answered
Is the sudoku maker free?
Yes. Generate and download as many printable sudoku puzzles as you like, free, with no account and no watermark. There is no paid tier to upgrade to.
Does every puzzle have a unique solution?
Yes. Each grid is generated and then checked, so there is exactly one valid answer and no guessing is ever required, not even at Expert.
What changes between the difficulties?
How many numbers you start with. Easy leaves plenty of clues on the board, and Expert strips it back to the minimum. Every level is still solved by logic alone.
Can I get the answers?
Yes. Every print includes the full solution on its own page, and you can toggle Show answers on in the preview.
How do I get a different puzzle?
Press New puzzle. Each one is generated from scratch, so you can print a whole set of different grids at the same difficulty.
What do I get when I print?
A clean PDF sized for US Letter or A4, with a large grid and thick box lines that stay legible in pencil. No watermark and no logo.
Do I need an account?
No. There is nothing to sign up for and nothing to install. The puzzle is generated in your browser and never sent anywhere.