UUIDs Across Formats: JSON and XML

UUIDs are portable across text-based formats. This article shows how to represent, validate, and document UUIDs in JSON and XML.

JSON

{
  "id": "4aa0f5c9-1b0d-4632-9b6d-8f8a9c643e1c"
}

XML

4aa0f5c9-1b0d-4632-9b6d-8f8a9c643e1c

Schema Tips

• Document expected UUID version (usually v4).
• Use regex or built-in formats for validation.
• Keep UUIDs lowercase for consistency.

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