JSON Schema Generator – Create Schema from JSON
Generate a JSON Schema (draft-07) automatically from your sample JSON data. Perfect for API validation and documentation.
Tool
Enter your values and get results instantly.
How to Use
- 1Paste your sample JSON in the input box
- 2Click Generate Schema
- 3Copy the resulting JSON Schema (draft-07)
Benefits
Frequently Asked Questions
What is JSON Schema?
JSON Schema is a vocabulary that allows you to annotate and validate JSON documents. It describes the structure, types, and constraints of your data.
Which draft is generated?
The tool generates JSON Schema draft-07, which is widely supported by validators and API documentation tools.
Does it handle nested objects and arrays?
Yes. Nested objects become nested "properties" definitions, and arrays get an "items" schema based on the first element.
How are required fields determined?
All keys present in the sample object are marked as required. You can remove any that are optional in your actual data.
Can I use this for API documentation?
Absolutely. The generated schema can be used with tools like Swagger/OpenAPI, or to validate incoming request payloads.