JSON to XML

How to use JSON to XML

1. Paste your JSON.
2. Copy the XML output.
3. Check the root element name and any renamed keys against what the receiving system expects.
4. A root element is invented because XML requires one and JSON does not supply it.
5. Keys that are not valid XML element names must be escaped or renamed.
6. Type information is lost — everything becomes text.

XML needs things JSON does not have

Every XML document requires exactly one root element, and a JSON array has no name for one — so a converter invents something like <root> or <item>. XML element names cannot start with a digit or contain spaces, which JSON keys frequently do, so those keys must be escaped or renamed. And XML has no native array: repeated elements imply a list, which means an array of one item is indistinguishable from a single value once converted.

Types disappear

JSON distinguishes the number 42 from the string “42”, and true from “true”. XML content is text, so that distinction is lost unless a schema restores it. Anything consuming the output has to know the types independently, which is why XML ecosystems lean so heavily on XSD. If you control both ends, this is manageable; if you are producing XML for someone else’s parser, check what they expect.

Where you still need XML

Legacy enterprise integrations, SOAP services, government and banking interfaces, RSS, and document formats like DOCX and SVG. XML is not fashionable and it is far from dead, and it has genuine advantages JSON lacks: namespaces, attributes, comments, mixed content and mature schema validation. Converting JSON to XML is almost always about meeting a system that requires it rather than choosing it.