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JSON to TypeScript Interface & Type Generator
Generate clean TypeScript interfaces, type aliases, and optional types from JSON objects or API payloads. Free, fast, with deep nesting support.
TypeScript & Zod
JSON to TypeScript Generator
JSON Input
TypeScript Output
TypeScript interface will appear hereโฆ
Frequently Asked Questions
How does JSON to TypeScript generation work?
The generator recursively traverses nested JSON objects and arrays, creating typed interface declarations with accurate property types (string, number, boolean, array, union, any).
Can I generate type aliases (type T =) instead of interfaces (interface T {})?
Yes. Switch between interface and type alias declaration modes in the options toolbar.