JSON Schema Generator

Generate JSON Schema from JSON data instantly. Paste your JSON and get a valid JSON Schema with types, required fields and nested object support.

JSON Input

Examples:

Mark all fields as required

JSON Schema Output

JSON Schema will appear here...

About JSON Schema Generator

JSON Schema is a vocabulary that allows you to annotate and validate JSON documents. It describes the structure, types, required fields and constraints of your JSON data. This tool automatically generates a JSON Schema (Draft-07) from any JSON input, detecting types, nested objects, arrays and common string formats like dates, emails and URIs.

Use it to quickly create schemas for API validation, form generation, configuration files or documentation. All processing happens entirely in your browser. Your data never leaves your device.