Why is the conversion described as lossy?

XML cannot distinguish a one-element array from a single value, so converting back will not necessarily reproduce the original structure.

JSON to XML

Emit an XML document from a JSON structure.

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About this tool

Converts JSON into XML, mapping object keys to elements and prefixed keys to attributes. The two formats do not correspond cleanly, so the result is a reasonable interpretation rather than a canonical one.

Limitations

The mapping is ambiguous in both directions. XML distinguishes attributes, elements and text; JSON does not.
Keys that are not valid XML names are sanitised, which is lossy.

Questions

Why is the conversion described as lossy?: XML cannot distinguish a one-element array from a single value, so converting back will not necessarily reproduce the original structure.

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