No pencil or eraser needed
A slip-up? One tap on the erase button and it's gone. Online sudoku forgives everything — no scratched-out cells like in a puzzle booklet.
Play sudoku online
Playing sudoku online is puzzling without the fuss: no booklet, no pencil, no eraser. You open BreinPlezier in your browser and you begin — on your computer, tablet, or phone, in peace and at your own pace.
Why puzzling online is so pleasant
Help whenever you want it
If you're stuck, the website checks your entries or a hint fills in one cell for you. On paper, you're on your own.
Your progress is saved
Making a quick coffee or continuing tomorrow? Your board will be exactly as you left it when you come back — saved automatically on your own device.
Always a new puzzle
A puzzle booklet runs out; our supply doesn't. Choose your level and a fresh sudoku is always ready, plus a shared daily puzzle every day.
This is how I want to play
At my own level
Choose easy, medium, or hard and play as many puzzles as you like, with hints and mistake checking within reach.
Play sudokuOne puzzle every day
The daily sudoku is the same for everyone. Build a streak and compare your time with family and friends.
Daily SudokuWant to know more first?
Read why playing sudoku on BreinPlezier is completely free — no account and no hidden costs.
About free sudokuNever solved a sudoku before? No worries: with the rules in plain language you'll be off in five minutes.
Frequently asked questions about sudoku online
What do I need to play sudoku online?
Just a device with a web browser: a computer, laptop, tablet, or phone. You don't need to install anything or create an account.
Does online sudoku work on a tablet or phone too?
Yes, very well indeed. The grid and the buttons are made extra large, so tapping on a small screen stays comfortable too. You can also play with the keyboard.
Is online sudoku harder than on paper?
No, the puzzles themselves are the same. Playing online is mostly easier: you erase mistakes with one tap, and hints or mistake checking are ready when you need them — but only if you ask for them.
Does playing sudoku online cost anything?
Not on BreinPlezier: all puzzles are completely free, without an account and without hidden costs.