XML to JSON Converter Online — Free
Convert XML data to JSON format instantly. Supports attributes, nested elements, and preserves data types.
Frequently Asked Questions
How do I convert XML to JSON online?
Simply paste your XML into the input box and the converter instantly transforms it to JSON format. No installation or sign-up required — everything runs in your browser.
Are XML attributes preserved in the JSON output?
Yes, XML attributes are preserved with an @_ prefix in the JSON output to distinguish them from child elements, ensuring no data is lost during conversion.
Is it safe to convert XML to JSON online?
Absolutely. Our XML to JSON converter runs 100% in your browser. Your data never leaves your device — no server processing, no data storage, complete privacy.
Can I convert large XML files to JSON?
Yes, our converter handles large XML documents efficiently using client-side processing. There are no file size limits imposed by our tool.
Privacy First: All processing happens directly in your browser. Your data never leaves your device.
About XML → JSON
XML and JSON model data differently, so the conversion involves real decisions rather than a mechanical mapping. Knowing how attributes, repeated elements and text nodes are handled is the difference between output you can use and output you have to reshape.
How attributes are represented
JSON has no concept of an attribute — an element carries only children and values. The standard resolution, used here, is to prefix attribute names so they cannot collide with sibling elements.
<book category="fiction" year="1965">
<title>Dune</title>
</book>
{
"book": {
"@_category": "fiction",
"@_year": 1965,
"title": "Dune"
}
}The repeated-element trap
This is the single most common source of bugs in XML-derived JSON. A parser cannot know whether an element is meant to be a collection — it can only observe how many times the element appears in this particular document.
One item child produces an object. Two or more produce an array. So the same schema yields different JSON shapes depending on the data, and code written against a two-item sample crashes on a one-item response. When you consume converted XML, normalise defensively: coerce the field to an array before iterating rather than trusting the shape.
What does not survive the conversion
- Comments, processing instructions and the XML declaration are dropped — JSON has no equivalent.
- Namespace prefixes are kept as part of the key name, but namespace URI bindings are lost.
- Mixed content — text interleaved with child elements, as in markup-style XML — has no faithful JSON representation and will be flattened.
- Attribute and element ordering is not meaningful in the result; JSON object key order should not be relied on.
- CDATA sections are unwrapped into plain string values.