How are JSON attributes represented in XML?

By convention, any object key that starts with the "@" prefix is written as an attribute on its parent element rather than as a child element. For example, {"book": {"@id": "bk101", "title": "..."}} becomes ... . This mirrors how the XML to JSON tool reads attributes back.

How does the converter handle JSON arrays?

Each element of an array is emitted as a repeated sibling element sharing the key's name. So {"tags": {"tag": ["a", "b"]}} produces a b , which is how lists are conventionally expressed in XML — there is no numbered index or wrapper element per item.

What is the #text key for?

When an element needs both attributes and text content, the text is stored under the "#text" key. {"title": {"@lang": "en", "#text": "Hello"}} becomes Hello . If an element has only text and no attributes, you can use a plain string value instead.

Can I get minified XML instead of indented output?

Yes. Set the indentation to 0 (minify) and the converter emits the whole document on a single line with no whitespace between tags. This is useful for SOAP requests or feeds where payload size matters; switch back to 2 or 4 spaces when you need a readable document.

What happens to keys that are not valid XML element names?

XML element names cannot contain spaces, cannot begin with a digit, hyphen or period, and exclude most punctuation. Keys that violate these rules are sanitized — invalid characters become underscores and a leading underscore is added when needed — so the output always parses, even if your JSON keys were not XML-friendly.

Does JSON to XML round-trip with the XML to JSON tool?

For the common structures it does. This tool and the XML to JSON tool share the same "@" attribute prefix and "#text" content key, so converting XML to JSON and back generally reproduces the same document. Order-independent details and mixed content are the usual sources of small differences, as they are with any XML/JSON mapping.

Is it safe to convert sensitive JSON here?

Yes. The converter is plain JavaScript that runs entirely in your browser — nothing you paste is transmitted to a server, logged, or stored. That makes it safe for API responses, config files and records containing tokens or personal data, and it keeps working with no network connection.

JSON to XML Converter: How to Map Keys, Attributes, and Arrays Correctly

Toolz Team

|Jul 20, 2026|3 min read

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Frequently Asked Questions

Paste your JSON into the editor and press Convert. Object keys become XML elements, arrays become repeated tags, and the result appears ready to copy or download. There is no upload — the conversion happens in your browser.

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JSON to XML Converter: How to Map Keys, Attributes, and Arrays Correctly

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