Developer Utilities

JSON to TypeScript & Zod Schema Converter

Free in-browser JSON to TypeScript Converter. Paste raw JSON objects or API responses to instantly generate clean TypeScript interfaces, type aliases, or Zod validation schemas. Automatically parses nested child objects into separate interfaces, detects arrays and primitive types, and provides options for readonly and optional properties.

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How to Convert JSON to TypeScript in 3 Steps

1

Paste Your JSON

Paste your JSON response, mock data, or object payload into the input editor.

2

Choose Format & Options

Select TypeScript Interface, Type Alias, or Zod Schema, and configure Root name.

3

Copy or Download Types

Copy the strongly-typed output or download as a standalone .ts file.

Frequently Asked Questions

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