AI-native Formik alternative form library (fillament.dev)

A new form library named Fillament, built on the WebLLM framework, has been launched as a privacy-first, AI-native alternative to Formik. This library enables users to create forms where they can simply describe what they need in natural language, and an in-browser model helps generate a reviewable form patch. All operations occur locally, ensuring that users’ data never leaves their device, making it a significant advancement for privacy-centric web applications. Fillament is designed for high performance and developer ease, offering features like type-safe state management, tree-shakable packages, and independent add-ons for various functionalities like analytics and localization. It allows AI agents to fill forms based on a clear schema contract that validates information before submission, thereby reducing errors. With support for multiple validation styles and a streamlined developer experience, Fillament stands out as a versatile solution for both simple and complex forms—ideal for regulated industries and intricate user interfaces without compromising on user privacy.