Free · Instant · No signup
Play Sudoku online free
Start a free 9×9 game in this browser — no app, no account, no download. Tap a cell, place a digit, keep going with unlimited new puzzles.
Play now · medium
Tap a cell, then a number
Why play Sudoku online here
Most people searching play Sudoku want one thing: a clean board that loads fast and lets them fill numbers immediately. Zeloku is built for that — the puzzle is server-rendered into the first paint, so you are not waiting on a spinner or a signup wall.
Prefer a shared daily challenge? The daily Sudoku set publishes four new boards every morning (Easy through Expert). Prefer paper? Grab a printable PDF. Stuck mid-solve? Paste the grid into the free Sudoku solver for a step-by-step hint.
Quick rules (30 seconds)
- Fill every empty cell with a digit from 1 to 9.
- No digit may repeat in any row.
- No digit may repeat in any column.
- No digit may repeat in any 3×3 box.
Full guide: How to play Sudoku · Sudoku rules.
More ways to play
- Online Sudoku — free browser hub
- Classic Sudoku — standard 9×9 only
- Evil Sudoku — brutal low-clue boards
- Extreme Sudoku — advanced challenge
- Mini Sudoku — 4×4 and 6×6 warm-ups
- Sudoku puzzles — difficulty directory
FAQ
- Can I play Sudoku online for free?
- Yes. Zeloku lets you play Sudoku online free with no account, no app download and no ads on the board. Open this page and start filling digits immediately.
- How do I play Sudoku on this page?
- Tap an empty cell, then tap a number 1–9 (or use your keyboard). Each row, column and 3×3 box must contain 1–9 exactly once. Conflicts light up so you can fix mistakes.
- Does play Sudoku online work on phones?
- Yes. The board is mobile-first: large tap targets, a number pad under the grid, and no hover-only controls. It works in Safari, Chrome and Firefox.
- What difficulty should I start with?
- Most players start with Medium. If you are brand new, try Easy first, then step up. Want a daily ritual instead of unlimited boards? Open Daily Sudoku.
- Is there a timer or score?
- This landing board focuses on calm play — place digits, fix conflicts, hit New puzzle. For a full timer, notes and hints, open any daily board.