JSON to XML Converter

JSON is the common language of modern APIs, but many established systems, document formats, and enterprise services still require XML. A JSON to XML converter bridges that gap by turning keys, values, and arrays into properly nested elements. You keep working in JSON, then produce XML only when a destination demands it.

The basic mapping is direct:

Each key becomes an element name, and its value becomes the element's content. Nested objects turn into nested elements, so the depth of your data carries straight over into the markup. Numbers and booleans are written as text inside the tags, since XML treats all content as character data. If your JSON is messy or invalid, run it through JSON Formatter first so the input parses cleanly before you convert. When you need to go the other direction later, the XML to JSON converter reverses the process, and JSON to CSV Converter handles the spreadsheet case.

The core rule is simple: a JSON key becomes an XML element, and the value goes inside it. Nested objects become nested elements, so the tree depth carries over exactly.

String, number, and boolean values are all written as the text between the tags, because XML stores everything as character data. A nested object opens a parent element and places its keys as children, so the tree grows exactly as the JSON nests. This predictable mapping means the XML mirrors your JSON structure one level for one level, which makes the output easy to anticipate. Because XML element names cannot contain spaces or start with a digit, keys that break those rules may need adjusting, which is something to watch for when your JSON keys came from a loose or user-supplied source. A clean, well-named JSON document converts into readable XML with no surprises, so it pays to tidy the keys before you convert.

JSON has arrays, but XML has no array type. Instead, XML represents a list by repeating the same element. A converter handles this by emitting one element per array entry, all sharing the parent key name.

This is the natural XML idiom for a collection, and it round-trips cleanly: converting the XML back to JSON collapses the repeated tags into an array again. Arrays of objects work the same way, with each object producing a full element containing its own children, so a list of records becomes a series of identical parent tags. One thing to note is that an empty array has no natural XML output, so it often produces nothing at all rather than an empty tag. If preserving empty lists matters for your downstream system, check the result and add a placeholder element where needed. Mixed-type arrays, where entries are not all the same shape, can also produce uneven elements worth reviewing.

XML has stricter syntax rules than JSON, and a converter handles them so the output parses cleanly. Every opening tag needs a matching closing tag, the document needs a single root element, and certain characters must be escaped inside text.

Because JSON allows several top-level keys but XML allows only one root, a converter often wraps your data in a single root element such as <root> to keep the document valid. Values containing reserved characters are escaped automatically so they do not break the markup, which means you can include text with < or & safely. The result is well-formed XML that any standard parser will accept without complaint. If you plan to validate against a schema, remember that conversion produces structurally valid XML but does not guarantee it matches a specific XSD or DTD, so review the element names and ordering against what the target expects before you send it.

Conversion to XML is most useful when you build in JSON but have to deliver in XML. Many SOAP services, financial messaging formats, document standards, and legacy integrations accept only XML. Rather than authoring that markup by hand, you keep your data in JSON and convert at the boundary.

It also helps when generating XML config or feed files from data your application already holds as objects. Producing them through a converter avoids tag typos and unbalanced elements that are easy to introduce when writing markup by hand. When the integration is two-way, the XML to JSON converter turns incoming XML into JSON, so the same data can flow in both directions without manual rework or retyping. For tabular exports, the CSV converter covers that path. Cleaning your JSON in JSON Formatter before converting gives the tidiest markup, since well-formed input leads to well-formed output. The aim throughout is to let each system receive data in the format it expects while you keep working in whichever shape is most comfortable for you.