JSON to TypeScript and Zod
Infer TypeScript interfaces, type aliases, and Zod schemas from JSON objects or arrays using every sample record and explicit conflict diagnostics.
Infer TypeScript and Zod definitions from complete sample data
ArrayText inspects every selected array element, merges observed property types, and marks a property optional when it is absent from at least one sampled object.
Type inference describes the supplied samples, not every future value. Conflicting observations become unions unless strict conflict mode is enabled.
JSON to TypeScript and Zod FAQ
Does the converter inspect every array item?
Yes by default. A first-item-only mode is available for compatibility, but it can miss optional fields and type conflicts.
Can it generate Zod schemas?
Yes. Zod output includes nested objects, arrays, optional properties, unions, nullable values, and common string formats.
Does generated TypeScript validate runtime data?
No. TypeScript types are compile-time declarations. Use the generated Zod schema or another runtime validator when runtime checking is required.
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