JSON Schema Generator
Generate a JSON Schema from a sample JSON object. Automatically infers types, required fields, and nested structures.
How to Use JSON Schema Generator
The JSON Schema Generator creates a valid JSON Schema from any sample JSON object. Paste your JSON example and get a complete schema with inferred types (string, number, integer, boolean, null, array, object), required fields, and nested object/array structures. The generated schema follows the 2020-12 draft specification. Useful for API documentation, request/response validation, form generation, and data contract definitions. Saves hours of manual schema writing by automatically detecting the structure of your data.
Step-by-Step Instructions
- Paste a sample JSON object into the input area
- Click Generate Schema
- Review the generated JSON Schema with inferred types
- Copy the schema for use in your project
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