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TanStack · Hook

useAppForm

TanStack Form lets you build a custom form hook with reusable field and form components. Use withForm to split large forms into typed child components.

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Syntax

createFormHook({ fieldContext, formContext, fieldComponents, formComponents })

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  • createFormHookContexts
  • withForm
  • withFieldGroup
  • useFieldContext
  • useFormContext
  • AppField
  • AppForm
  • form.Subscribe

Source: Form Composition | TanStack Form Preact Docs. Checked 2026-11-03.