JSON Schema Generator
Auto-generate JSON Schema from JSON data.
Input JSON
Usage
What is JSON Schema
JSON Schema is a standard for describing JSON data structure, used for validation, API docs, and form generation. This tool infers field types and required status from input JSON.
Draft Version
Supports Draft 2020-12, 2019-09, Draft-07, and Draft-04. Choose based on your validator compatibility. Draft 2020-12 is recommended.
Type Inference Rules
Auto-detects strings, numbers (int vs float), booleans, arrays, objects, and null. Strings are further checked for date-time, email, and uri formats. Non-null fields are marked required by default.