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FAQ

Why not just use react-hook-form directly?​

You can, and for single-app single-UI projects it's often simpler. formzk shines when you want the same form declaration to render across multiple UI stacks (MUI and Tamagui both ship as adapters), or when you have a large catalog of custom input components and want strongly-typed component="..." references.

Does formzk own my form state?​

No — it's a thin layer on top of react-hook-form. Formzk.Form sets up useForm + FormProvider; Formzk.Input wraps Controller. useFormContext() inside any descendant works as usual.

Can I mix formzk inputs with raw Controller / register?​

Yes. They share the same react-hook-form context.

Does @formzk/mui support MUI v5?​

Partially. Grid layout is rewritten for v6+. Most inputs still work on v5 but are untested. For new projects please use MUI v6 or later.

Does formzk support React 19?​

Yes. React 18 and 19 are both supported in the current release line.

Does formzk work in React Native?​

Yes — use @formzk/tamagui. It builds on Tamagui primitives, so the same form declaration renders on web (react-native-web) and native React Native. @formzk/core itself is renderer-agnostic.

Can I write my own adapter?​

Yes — that's the design goal. See CONTRIBUTING.md for the checklist.

Where do I report bugs / request features?​