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JSON to TypeScript

Generate TypeScript interfaces from JSON data automatically.

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What this tool does

JSON to TypeScript generates TypeScript interfaces from sample JSON. It accepts representative JSON objects and arrays and returns TypeScript interface definitions. Use it for typing API responses, fixtures and frontend models from real payloads.

Related extensions and formats

These are the formats and values directly related to the JSON to TypeScript workflow: representative JSON objects and arrays becomes TypeScript interface definitions.

JSON file

.json

A structured data file based on JavaScript Object Notation, widely used for APIs, configuration files and application state.

TypeScript file

.ts

A typed JavaScript source file used for safer application code, generated interfaces and schema-friendly models.

How to use this tool

  1. 1Paste or enter representative JSON objects and arrays into JSON to TypeScript.
  2. 2Adjust the available options when the tool provides extra controls.
  3. 3Review TypeScript interface definitions, then copy or download the result.

Common use cases

  • Use representative JSON objects and arrays for typing API responses, fixtures and frontend models from real payloads.
  • Generate TypeScript interface definitions without installing external utilities.
  • Quickly check representative JSON objects and arrays before pasting it into code, documentation or integrations.
  • Keep sensitive data in the browser during quick development tasks.

Frequently asked questions

What is JSON to TypeScript used for?

It is used for typing API responses, fixtures and frontend models from real payloads, converting or analyzing representative JSON objects and arrays to produce TypeScript interface definitions.

What input can I use with JSON to TypeScript?

Use representative JSON objects and arrays. The expected result is TypeScript interface definitions.

Does JSON to TypeScript send my data to the server?

No. DevMe tools are designed to process data in the browser whenever possible.