Paste XML and get JSON you can work with in code. Attributes are kept, repeated elements become arrays, and a malformed document is reported instead of half-converted.
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XML has features JSON does not — attributes, mixed text and elements, repeated siblings — so a converter needs rules for each. The rules here follow the widely used convention that keeps the result predictable and lets it be converted back.
An element with only text becomes a key with a string value. An element with children becomes an object. An empty element becomes null.
<category domain="severity"> yields "@domain": "severity". The prefix keeps attributes apart from child elements of the same name.
When an element has attributes and text, the text goes under "#text", since an object cannot also be a string.
Two or more siblings with the same name are collected into an array, in document order.
A list with one item is not an array. XML does not say whether an element may repeat, so a feed with a single <item> gives an object where a feed with two gives an array. Code that reads the JSON should accept both — or normalise the value to an array first. Only a schema can settle it for certain.
Everything is a string unless you say otherwise. XML has no number or boolean type. By default values are kept as text, so "007" and "1.10" survive intact. Tick "detect numbers, booleans and null" if you want 42 and true converted.
As keys with a prefix, by default @. An attribute id="7" becomes "@id": "7" inside the object for that element. The prefix can be changed to _ or -.
XML gives no indication that an element may repeat. Without a schema, one occurrence is converted as a single value and several as an array.
CDATA content is treated as ordinary text. Comments and processing instructions are dropped, since JSON has no equivalent.
Prefixed names such as soap:Envelope are kept as they are, and xmlns declarations appear as attributes. The converter does not resolve prefixes to namespace URIs.
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