Generate Types from JSON API Data

Create TypeScript interfaces and JSON Schema contracts directly from real API response examples.

Open JSON Formatter & Validator All Use Cases

Why This Workflow Works

If frontend and backend contracts drift apart, runtime bugs follow. This workflow turns representative API payloads into typed interfaces and validation schemas.

Step-by-Step

  1. Format and validate a representative JSON payload.
  2. Generate a JSON Schema to define required fields and types.
  3. Create TypeScript interfaces and use them in your app models.

Tools Used in This Workflow

JSON Formatter & Validator
Format, validate, and minify JSON data
JSON Schema Generator
Generate JSON Schema from sample JSON data
JSON to TypeScript
Generate TypeScript interfaces from JSON data

Frequently Asked Questions

Which tool should I start with?

Start with JSON Formatter & Validator, then use JSON Schema Generator, JSON to TypeScript to finish the workflow.

Does this workflow upload my files or content?

The listed tools are browser-first. Inputs are processed locally where possible; network tools only inspect public URLs or domains you enter and do not store returned results.