Fillament - A modern Formik alternative with AI auto-fill support

Fillament is a type-safe form library for complex React apps. It helps teams build multi-step, conditional, production-grade forms with granular re-renders, free DevTools, privacy-safe analytics, and built-in AI agent auto-fill support — so forms work better for both users and automation.

We built Fillament for React teams that have outgrown simple form state. Formik has been a default choice for years, but complex product flows often need more than “collect values and validate on submit.” Real-world forms have conditional sections, multi-step flows, dependent fields, performance constraints, analytics needs, AI-assisted workflows, and teams of developers who need confidence when refactoring. Fillament is our take on a modern Formik alternative: ✅ Type-safe fields ✅ Granular re-renders ✅ Conditional flows ✅ Built-in AI agent auto-fill support ✅ Free DevTools ✅ Privacy-safe analytics ✅ Built for large React teams

Fillament - A modern Formik alternative with AI auto-fill support

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