About Sudokly

Sudokly is a free sudoku site. No account, no email wall, no app to install. Every puzzle is generated by our own engine, verified to have a single solution, and rated for difficulty.

Editorial note, The site is in pre-launch. The founder's full story, photo, and credentials will live on this page before public launch. We're keeping a personal voice rather than corporate-speak.

What makes Sudokly different

• No signup, ever. Your progress lives in your browser.
• No tracking by default. Cloudflare Web Analytics is privacy-friendly and GDPR-compliant. no cookies, no fingerprinting.
• No AI-generated educational content. Strategy guides and blog posts are written by humans.
• Free printables. No email gate. Print as many as you want for classrooms, your own use, or anything else legitimate.
• Accessibility built in. Keyboard navigation, screen reader announcements, high-contrast colors, and respect for prefers-reduced-motion.

Tech

Sudokly runs on Cloudflare Workers via the OpenNext adapter for Next.js. Puzzles are stored in Cloudflare D1; printables in R2; cache state in KV. The whole stack is single-vendor, edge-deployed, and fits well within Cloudflare's free tier even at our launch traffic targets.

Get in touch

Bug reports, ideas, or just hello, contact us.