JSON to TypeScript Converter | Generate TS Interfaces Online

Convert JSON data to TypeScript interfaces and types automatically. Generate strongly-typed interfaces from your JSON API responses. Designed specifically for developers and professionals, this free online converter runs entirely in your browser to process tasks quickly and securely. Enjoy unlimited usage with no data tracking and no registration required.

Also known as: json to typescript converter · typescript interface generator · json to ts types · generate typescript from json · json to typescript online · ts interface generator · json api to typescript · json to typescript · typescript generator · interface generator · type generator · json converter · typescript types

json tools

javascript and typescript tools

api and http tools

converters

Conversion Options

Root Type Name

Use interface

Export types

Optional props (?)

JSON Input

TypeScript Output

About JSON to TypeScript Converter

Convert JSON objects to TypeScript interfaces or type aliases instantly. Handles nested objects, arrays, and primitive type inference automatically.

Key Features

Infers TypeScript types from JSON values — string, number, boolean, null, arrays
Generates nested interfaces for deep object structures
Supports arrays of objects with automatic element type resolution
Toggle between interface and type alias syntax
Optional export keyword and optional (?) property modifiers
Download generated types as a .ts file

Use Cases

Create TypeScript types from API response payloads
Convert JSON config files to typed interfaces
Rapidly prototype with type-safe data models
Convert JSON Schema examples to TypeScript definitions

Related Keywords

json to typescript

json to typescript interface

typescript interface generator

json to ts

json type generator

typescript types from json

Privacy & Security

All processing happens locally in your browser. Your data never leaves your computer, ensuring complete privacy and security.

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Frequently asked questions

What is JSON to TypeScript Converter used for?

Convert JSON data to TypeScript interfaces and types automatically. Generate strongly-typed interfaces from your JSON API responses.

Is JSON to TypeScript Converter free to use?

Yes. JSON to TypeScript Converter is completely free with no usage limits, and there is no paid tier required to use it.

Do I need an account to use JSON to TypeScript Converter?

No. JSON to TypeScript Converter works immediately in your browser with no signup, login, or email address required.

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