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How to Use This Tool
Paste JSON data
Enter a sample JSON object or array.
Generate schema
A JSON Schema is automatically inferred from your data structure.
Copy the schema
Copy the generated JSON Schema for use in validation.
Features
Auto-Inference
Automatically detects types, required fields, and nested structures.
Instant Generation
Schema is generated in real time as you edit the input.
Draft-07 Compatible
Generates schemas compatible with JSON Schema Draft-07.
One-Click Copy
Copy the schema to your clipboard.
Frequently Asked Questions
What is JSON Schema?
JSON Schema is a vocabulary for annotating and validating JSON documents. It defines the structure, data types, required fields, and constraints for JSON data. It is widely used for API validation, form generation, and documentation.
What JSON Schema draft does this tool use?
This tool generates schemas compatible with JSON Schema Draft-07, which is the most widely supported version across validation libraries.
Can the schema validate my API responses?
Yes. Use the generated schema with validation libraries like Ajv (JavaScript), jsonschema (Python), or JSON::Validator (Ruby) to validate API responses in your test suite or middleware.
Does it handle nested objects and arrays?
Yes. The generator recursively processes nested objects and arrays, creating appropriate schema definitions for each level of nesting, including items schemas for arrays.