EasyConvert / Format & Code Conversion

JSON to TypeScript & Zod Converter

Generate TypeScript interfaces and Zod validation schemas from JSON payload. Free browser-based tool with no signup required.

About JSON to TypeScript & Zod Converter

Generate TypeScript interfaces and Zod validation schemas from JSON payload.

The tool is designed to process data in the browser unless the interface explicitly states that a network request is required.

How to use this tool

Enter or select the json value you want to work with.
Review the available settings, then run the convert action.
Review the typescript interface, zod schema output and use the copy or download action when the tool provides one.

What you can do with JSON to TypeScript & Zod Converter

Generate typescript interface from json
Convert json to zod

What this conversion does

Generate TypeScript interfaces or Zod validation schemas from a JSON sample.

Example input

{"id":1,"user":{"name":"Ada","tags":["admin"]}}

Example output

export interface RootObject { id: number; user: User; } … or the equivalent z.object({...}) Zod schema

Practical workflow

Paste a representative JSON payload — an API response, config file, or fixture.
Choose TypeScript interfaces or a Zod schema as the output.
Copy the generated types into your codebase and refine optional or union fields by hand.

Common use cases

Type an external API response without writing interfaces manually.
Bootstrap Zod runtime validation that mirrors your TypeScript types.
Convert JSON fixtures into typed test data models.

Important notes and limitations

Generated types reflect the sample you provide; fields missing from the sample will not appear, so use a representative payload.
Conversion runs locally in your browser — payloads are never uploaded.

Continue your workflow

JSON Beautifier & Validator — validate and format the JSON before generating types.
JSON Schema Generator & Validator — produce a JSON Schema instead of TypeScript.
JSON to Code Models — generate C#, Java, Python, or Dart classes from the same JSON.

Frequently asked questions

How do I convert JSON to a TypeScript interface?

Paste the JSON and the generator emits nested export interface declarations with inferred field types (string, number, boolean, arrays, and nested objects). Copy the result straight into your project.

Can it generate a Zod schema instead of interfaces?

Yes. Switch the output to Zod and the same JSON sample becomes a z.object() schema you can use for runtime validation, keeping types and validation in sync.

Is the JSON I paste kept private?

Yes. Type generation happens entirely in your browser; nothing is transmitted or logged.