JSON Schema Generator
Generate JSON Schema from your JSON data automatically. Infer types, detect patterns, and create schemas for API documentation and validation.
🔒 Privacy First: All JSON processing happens directly in your browser. Your data is never sent to any
server, ensuring complete privacy for your sensitive data.
About JSON Schema Generator
This free online tool generates JSON Schema from your JSON data automatically. It analyzes the structure of your JSON, infers data types, and creates a complete schema that can be used for validation and documentation.
What is JSON Schema?
JSON Schema is a vocabulary that allows you to annotate and validate JSON documents. It describes your existing data format and provides clear documentation for APIs and data exchange.
Features
- Automatic type inference - Detects string, number, boolean, array, object, and null types
- Nested object support - Handles deeply nested structures
- Array item analysis - Infers types from array contents
- Multiple draft versions - Support for Draft-04, Draft-06, Draft-07, and 2020-12
- Examples inclusion - Optionally include example values in the schema
- Required properties - Mark all properties as required or optional
Use Cases
- API documentation and design
- Data validation in applications
- Code generation from schemas
- Testing and mocking data
- Form generation from schemas