JSON to TypeScript

Generate sample JSONSimple
JSON input
TypeScript output

What is JSON to TypeScript?

JSON to TypeScript turns sample JSON into a practical starter artifact for API development. Generate TypeScript interfaces from sample JSON.

Generated output is meant to accelerate scaffolding. Review naming, optional fields, validation rules, and framework-specific annotations before production use.

How to use JSON to TypeScript

Paste a representative JSON payload and run JSON to TypeScript. Copy the generated model, struct, class, dataclass, or mock definition into your codebase, then refine it for your project conventions.

Available actions

  • Generate TypeScript
  • Import JSON file
  • Copy output
  • Download output
  • Create expiring JSON share link
  • Collapse all
  • Expand all
  • Escape JSON string
  • Unescape JSON string
  • Generate sample JSON
  • Simple sample
  • Medium sample
  • Complex sample
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  • Close search panel

Example

Input

{"id":1,"name":"Ada","roles":["admin"],"active":true}

Output

export interface Root {
  id: number;
  name: string;
  roles: string[];
  active: boolean;
}

FAQ

Is JSON to TypeScript production ready?

It is a starter generated from one sample. Review optional fields, exact numeric types, nullability, validation, and naming before shipping.

Does code generation run on a server?

No. JSONFather generates the output in your browser.

Can it handle nested JSON?

Yes. Nested objects and arrays are converted into nested model types where possible.