Ba-Zi.ai

Ba-Zi.ai is a free AI-powered BaZi (Four Pillars of Destiny) calculator. It helps users enter birth date and time, generate a Four Pillars chart, and understand the result in plain language. The tool explains Day Master strength, Five Elements balance, Ten Gods, Luck Pillars, Flow Year timing, relationship compatibility, Bone Weight Fortune, and SBTI personality patterns. I built it because most BaZi tools either stop at a chart table or require an expensive human reading. Ba-Zi.ai sits between those two: deterministic chart calculation first, then AI-assisted interpretation grounded in the actual chart. Stack: Next.js, TypeScript, PostgreSQL, Drizzle ORM, Better Auth, Stripe, TailwindCSS, Radix UI, Vercel, Cloudflare, and LLMs for chart interpretation.