{}SJSON Schema Generator

What is JSON Schema Generator?

JSON Schema Generator analyzes real JSON data and automatically produces a JSON Schema that can validate that structure. It is a great starting point for writing API documentation, implementing data validation logic, and generating TypeScript type definitions. Objects, arrays, and nested structures are all supported, and the output follows the draft 2020-12 standard.

How to Use

1. Paste the JSON data you want to generate a schema for into the JSON Input panel on the left.
2. Click Generate Schema — the resulting JSON Schema appears automatically in the panel on the right.
3. Click the copy button to copy the generated schema to your clipboard and use it in your project.