Vibidoku — Sudoku Puzzles

vibidoku is Sudoku done right — clean, fast, and built to play.

Whether you want a quick 4×4 to warm up or a brain-melting 16×16, every puzzle is generated fresh with exactly one solution. No accounts, no clutter, no waiting. Just open and play.

▶ THREE GRID SIZES
• Small (4×4) — perfect for quick rounds and new players
• Classic (9×9) — the Sudoku you know and love
• Huge (16×16) — hexadecimal grids (1–9, A–F) for serious solvers

▶ TOOLS THAT HELP, NOT HOLD YOUR HAND
• Pencil notes — mark candidates in any cell
• Undo — step back through every move
• Hints — get unstuck without giving up
• Built-in timer — track and beat your best

▶ MADE TO FEEL GOOD
• Light and dark themes
• Smooth animations and a satisfying win celebration
• Adjustable zoom for comfortable play on any screen
• Local best-time tracking — compete with yourself

▶ PLAY ANYWHERE
Fully offline. No sign-up, no internet required. Your progress is saved automatically, so you can pick up right where you left off.

Sharpen your logic, build a daily habit, or just kill five minutes. Vibidoku fits.

Download now and start solving.