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JSON to TypeScript Guide

Automatically converts JSON data structures to TypeScript interfaces or types.

Useful for defining API response types or generating types for config files.

Key Features

string

Auto type inference (string, number, boolean, null)

nested

Nested object separation

array[]

Array type handling

null?

null β†’ optional property conversion

Tips

1

Set a meaningful root interface name

2

Enable export option for API responses

3

Use readonly option for immutable data