Convert between JSON and XML formats instantly | 100% Private
Switch instantly between JSON to XML and XML to JSON in a single tool.
Special characters like &, <, and > are escaped correctly so output XML is always well-formed.
Invalid JSON or malformed XML shows a clear, specific error instead of a silent failure or crash.
Load a ready-made example for either mode to see the conversion in action immediately.
Copy the converted output to your clipboard instantly.
All conversion happens locally in your browser — nothing is ever uploaded anywhere.
JSON and XML are two of the most common data-interchange formats on the web. JSON is compact and maps naturally to JavaScript objects and arrays, while XML is verbose but supports richer structural features like attributes, namespaces, and mixed text/element content. This tool converts between the two entirely in your browser.
Object keys become XML element tags, and their values become nested content. Arrays are converted into repeated sibling elements sharing the same tag name as the array's key. Primitive values (strings, numbers, booleans, null) become element text content, with reserved XML characters escaped as entities. Keys that aren't valid XML tag names — for example, ones starting with a digit or containing spaces — are automatically sanitized so the output stays well-formed.
The XML is parsed using the browser's native DOMParser, then the resulting tree is walked recursively: elements become JSON object keys, attributes are captured under an "@attributes" key, repeated child elements with the same tag become a JSON array, and text content becomes a string value. Because DOMParser doesn't throw JavaScript errors on invalid XML — it embeds a parsererror element in the output instead — this tool explicitly checks for that and shows you a clear error message.
Not always. JSON and XML have different structural capabilities — XML supports attributes, mixed content, and namespaces that have no direct JSON equivalent, while JSON supports things like explicit type distinctions that XML text nodes do not. For simple, well-structured data the conversion is clean, but for complex or unusual documents you should always verify the output.
Each array item becomes a repeated sibling element using the same tag name as the array's key. For example, an array under the key "items" with three values produces three separate <items>...</items> elements at the same level.
Keys that start with a digit, contain spaces, or include other characters not allowed in XML tag names are sanitized: invalid characters are replaced with an underscore, and a leading underscore is added if the key starts with a digit, so the output always remains well-formed XML.
Yes. Any text value containing XML-reserved characters (&, <, >, ", ') is automatically escaped as the corresponding XML entity (&, <, >, ", ') so the generated XML is always valid and well-formed.
No. All conversion happens locally in your browser using JavaScript's JSON.parse and DOMParser. Nothing is sent to a server, logged, or stored.