How do I emit attributes?

Use keys that start with @. "@id": "1" becomes id="1".

What is the root element?

root, unless your JSON is already wrapped in a single named object — we still wrap the value you paste under root for a stable document.

Yes. An array named tag becomes multiple nodes.

Yes, two spaces, with an XML declaration.

Use XML to JSON. Attribute prefixes round-trip.

Runs in your browser · Last updated 4 September 2026

Turn JSON objects and arrays into indented XML. Runs entirely in your browser.

JSON

<?xml version="1.0" encoding="UTF-8"?>
<root>
  <book id="1">
    <title>Dune</title>
  </book>
</root>

The sample {"book":{"@id":"1","title":"Dune"}} becomes a root element containing book with an id attribute and a title child.

How do I emit attributes?: Use keys that start with @. "@id": "1" becomes id="1".
What is the root element?: root, unless your JSON is already wrapped in a single named object — we still wrap the value you paste under root for a stable document.
Are arrays repeated elements?: Yes. An array named tag becomes multiple <tag> nodes.
Is output indented?: Yes, two spaces, with an XML declaration.
Can I go back to JSON?: Use XML to JSON. Attribute prefixes round-trip.