Building lightweight, practical web tools for travelers and developers.
Enter your birth date and K-Saju turns your Korean Saju (Four Pillars / Bazi) into a shareable character card: your Five Elements balance, your K-pop group role, and your K-drama character energy — for global K-culture fans and Koreans alike. Bring a friend and check your chemistry, too.
- 🔗 Live: ksaju.piyaklabs.com
- 🎭 Solo character card + friend chemistry (
/match) · EN / 한국어
Google Maps can't give walking or transit directions in Korea. K-Map Router fixes that: paste a Google Maps share link and open it in Naver Map or KakaoMap — the apps locals actually use — in one tap. Walking & transit, A→B routes, free, no sign-up, nothing stored.
- 🔗 Live: kmap.piyaklabs.com
- 💻 Code: github.com/piyaklabs/k-map-router
- 📝 Story: Why I built it
Small, fast, stateless web tools — shipped quickly, quality over surface area.
- Frontend: TypeScript · React · Vite · Tailwind CSS
- Edge: Cloudflare Workers + static assets — zero-to-few dependencies, no servers to babysit
- Blog: Astro
Feedback or ideas? contact@piyaklabs.com 🐣