Conform

Progressive form validation

FreeLibraries & build toolingconform.guide

What it is

A form library, v1, built on the native HTML form and FormData rather than controlled React state. It validates the same schema on client and server, so forms keep working without JavaScript. Designed for React Router and Next.js server actions.

Why it earns a slot

The right pick when forms submit to a server action and you refuse to duplicate validation rules in two places. For a pure client-side SPA, React Hook Form is the simpler default.

Know before you commit

Much smaller ecosystem than RHF and tied to server-first frameworks. It is not what shadcn's Form component expects.

Getting started

npm install @conform-to/react @conform-to/zod

Field notes

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Pricing snapshot

Free · MIT

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Drop into your Lovable chat

Evaluate Conform (https://conform.guide) for this project, then use it only if it fits what we are already building.
Context: Progressive form validation. A form library, v1, built on the native HTML form and FormData rather than controlled React state. It validates the same schema on client and server, so forms keep working without JavaScript. Designed for React Router and Next.js server actions.
Reviewer notes (general, not written for this codebase): The right pick when forms submit to a server action and you refuse to duplicate validation rules in two places. For a pure client-side SPA, React Hook Form is the simpler default.
Watch out for: Much smaller ecosystem than RHF and tied to server-first frameworks. It is not what shadcn's Form component expects.
Pricing: Free · MIT
Setup: npm install @conform-to/react @conform-to/zod
Rules: treat the notes above as background only. Do not assume a theme, style, layout or feature that is not already in this project — inspect the existing code first and ask me before changing visual direction.

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