Question 1

How does JSON-to-XML conversion work?

Accepted Answer

Each JSON object becomes an XML element, each property becomes a child element, and each array becomes a series of repeated elements. Special keys prefixed with @ become attributes (e.g. {"@id": 1} → <root id="1">). The #text key sets an element's text content.

Question 2

How are arrays handled?

Accepted Answer

Arrays become repeated sibling elements with a configurable item name. For example, {"items": [1,2,3]} with arrayItemName="item" becomes 123.

Question 3

Can I convert XML back to JSON?

Accepted Answer

Yes. The tool includes a reverse converter (XML → JSON) that turns attributes back into @-prefixed keys and reconstructs arrays from repeated elements. Round-trip fidelity is high for JSON-first data.

Question 4

What extra features does this tool have?

Accepted Answer

10 extras: (1) XML validation (well-formedness check). (2) Copy output. (3) Download .xml file. (4) Reverse conversion (XML→JSON). (5) Custom namespace declaration on root. (6) Configurable attribute prefix (default @). (7) Configurable array item element name. (8) Depth limit (prevents runaway recursion). (9) History (localStorage — last 10 conversions). (10) Type info annotation (xsi:type-style hints) for primitives.

Question 5

Is my JSON data uploaded anywhere?

Accepted Answer

No. All conversion happens in your browser using pure JavaScript. Your data never leaves your device.

Question 6

What's the maximum input size?

Accepted Answer

There's no hard limit, but very large JSON (> 10MB) may slow the browser. A depth limit (default 100) prevents stack overflow on deeply nested input.

JSON to XML Converter

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