Schemas Knowledge Base

JSON Schema Specification & Generation

How to define, generate, and validate Draft-07 JSON Schemas for reliable API contracts, with a worked example and a free online schema generator.

Understanding JSON Schema

JSON Schema provides a vocabulary to annotate and validate JSON documents, ensuring incoming payloads conform to expected types.

json
{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "object",
  "properties": {
    "name": { "type": "string" }
  },
  "required": ["name"]
}

Try the free JSON Schema Generator

Runs entirely in your browser — no upload, no signup, and your data never leaves your device.

Open JSON Schema Generator

Frequently Asked Questions

How do I generate a JSON Schema from a sample JSON?

Use our online JSON Schema Generator to synthesize draft-07 schemas automatically.

Related JSON Topics & Reference Articles