JSON Schema Builder

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "object",
  "properties": {
    "email": {
      "type": "string",
      "description": "User email address",
      "pattern": "^[^@]+@[^@]+\\.[^@]+$"
    },
    "age": {
      "type": "integer",
      "description": "Age in years",
      "minimum": 0,
      "maximum": 150
    },
    "role": {
      "type": "string",
      "enum": [
        "admin",
        "editor",
        "viewer"
      ]
    }
  },
  "required": [
    "email",
    "age"
  ]
}