JSON to XML Converter

A key becomes an element. A key that starts with the attribute prefix (@ by default) becomes an attribute of its parent, and the text key (#text) becomes the element's text, so the same settings read back what XML to JSON writes. An array becomes the same element repeated, a number or boolean is written as it appears, and null or an empty string becomes an empty element.

XML needs one root. A single-key object whose value is not an array supplies it; otherwise the JSON is wrapped in the root name you set. An array inside an array uses item as the inner element name. The characters & and < are escaped, and quotes inside attributes too.

It refuses input XML cannot hold, with the path: a key that is not a valid element name (first name, 1st), an attribute whose value is an object or array, and control characters that XML 1.0 forbids. Nothing is renamed behind your back.

Input:

{"order": {"@id": "1001", "@status": "paid", "customer": "Ann & Co",
  "item": [{"@sku": "A1", "@qty": 2, "#text": "Widget"},
           {"@sku": "B2", "@qty": 1, "#text": "Gadget"}],
  "gift": null}}

Output:

<?xml version="1.0" encoding="UTF-8"?>
<order id="1001" status="paid">
  <customer>Ann &amp; Co</customer>
  <item sku="A1" qty="2">Widget</item>
  <item sku="B2" qty="1">Gadget</item>
  <gift/>
</order>

The number 2 became the attribute text "2", and the null gift became an empty element.

• XML has no types: numbers, booleans and strings all become text, so reading it back gives strings unless you convert them.
• null and "" both give an empty element, which reads back as an empty string.
• Text next to child elements is written first, so the order between them is not kept.
• An empty array writes no element, and the notes say where.
• Check broken input with the JSON formatter or JSON repair first.