XML to JSON

XML marks up data with nested elements and attributes. It's still common in feeds, office files, government data and older APIs, while most modern code expects JSON. This converter reads XML in your browser and writes the equivalent JSON.

Each element becomes a key, and nesting is kept. Attributes are kept as keys that start with @_, and when an element has attributes as well as text, the text goes under #text. Elements that repeat under the same parent become arrays, while a single element stays an object. CDATA sections become plain text, entities such as & are decoded and surrounding whitespace is trimmed. With typed values on, text that round-trips as a number or boolean, such as 42 or true, becomes a JSON number or boolean, while 007 or 9.50 stay strings. Comments and processing instructions are dropped.

The XML is checked before it's converted. If a tag is left open or closed in the wrong order, you get a short description of the problem with its line and column instead of a half-converted file.