About

A calm home for Sudoku.

Zeloku is built for people who love the quiet satisfaction of a well-made puzzle. We publish a fresh set of daily Sudoku — easy, medium, hard and expert — every morning, alongside structured lessons, printable PDF packs and a friendly community.

Our principles

Verified boards. Every published Zeloku puzzle is checked to have exactly one solution.
Calm by design. Soft palette, generous spacing, no noisy ads breaking your focus.
For all ages. From 4×4 boards for kids to expert-grade boards for veterans.
Open and fast. Workers-first delivery, lightweight pages, no tracking-heavy scripts.

Brand images

Official logos and share images (PNG) used across the site and listed in our image sitemap for Google Images. Full gallery: Sudoku illustrations.

Logo avatar

Brand mark

Zeloku Open Graph image — Free Daily Sudoku — Default OG

Contact

Questions, feedback or puzzle ideas? Reach us at hello@zeloku.com.