JSON & data

JSON → JSON Schema

Derive a Draft 2020-12 schema from a JSON sample.

Install for Chrome →All features

Tools → Convert → JSON → JSON Schema · 7-day free trial · Premium $9.99 / yr

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JSON sample

JSON Schema (Draft 2020-12)

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "id": {
      "type": "integer"
    },
    "email": {
      "type": "string",
      "format": "email"
    },
    "tags": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "createdAt": {
      "type": "string",
      "format": "date-time"
    }
  },
  "required": [
    "id",
    "email",
    "tags",
    "createdAt"
  ],
  "additionalProperties": false
}

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What it does

JSON Schema is the standard contract format for JSON APIs. Generating one from a sample saves dozens of nested type definitions and gives you a starting point you can refine.

The generator emits Draft 2020-12, marks every observed key as required by default, and tags strings that look like emails / URIs / UUIDs / date-times with the matching format.

Why use VibeGear's json → json schema

✓Draft 2020-12 (the latest)
✓Format detection: email, uri, uuid, date-time, ipv4
✓Local-only

How to use it

1Tools → Convert → JSON → JSON Schema.
2Paste a representative JSON sample.
3Copy the schema; refine optional / required fields as needed.

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