First, it provides strongly typed FormData parsing, turning native FormData into fully typed objects with TypeScript inference, including nested objects and arrays.

Second, it provides a canonical submission flow: a single Submission object that preserves raw input, separates field and form errors, and standardizes success and error states.

Conformal implements Standard Schema (works with Zod, Valibot, etc.), is framework-agnostic, and is all you need to handle form submissions. It also exposes the primitives needed to build framework-specific higher-level form libraries.

Simple demo with React 19, useActionState, and Zod on StackBlitz: https://stackblitz.com/github/marcomuser/conformal/tree/main...

Repo: https://github.com/marcomuser/conformal

I’d be happy to hear any feedback or input on the library!