JSON to XML Converter
Convert JavaScript Object Notation (JSON) to Extensible Markup Language (XML). Input valid JSON and tap the convert button.
What is converting JavaScript Object Notation (JSON) to Extensible Markup Language (XML)?
Converting JSON to XML means taking a JSON text and expressing the same nested data with XML elements. This tool parses the input as JSON in your browser, then writes XML text into the output box. Empty input returns an empty output, and invalid JSON returns an error message instead of attempting a partial conversion.
For JSON objects, the converter creates a <root> wrapper element and turns each object property into a child element with the same name. Nested objects are converted recursively, so child properties become nested XML elements. String, number, and boolean values are written as element text, with XML-sensitive characters such as &, <, >, quotes, and apostrophes escaped as XML entities.
Arrays that appear as object property values are represented as repeated sibling elements with the property name. For example, a property named car containing two values becomes two <car> elements. A top-level array is wrapped in <root> and each entry is written as an <item> element. Null values become self-closing elements, such as <middleName/> or <root/> for a top-level null value.
The conversion is intentionally simple and best suited for quick inspection, examples, documentation snippets, and data handoff where element-only XML is acceptable. It does not infer XML attributes, namespaces, comments, processing instructions, CDATA sections, schema types, or a custom document type. Because JSON property names are used directly as XML element names, inputs work best when object keys are also valid XML names.
JSON and XML do not have identical data models. JSON has native arrays, booleans, nulls, and numbers, while XML represents information as character data, elements, and attributes interpreted by an application. Review the output before using it in automated workflows, especially when the source JSON contains duplicate member names, very large numbers, schema-sensitive data, or keys that are not valid XML element names.
What is JavaScript Object Notation (JSON)?
JavaScript Object Notation, or JSON, is a lightweight, text-based data interchange format. RFC 8259 describes JSON as a portable representation for structured data that can contain objects, arrays, strings, numbers, booleans, and null.
JSON objects contain name/value pairs, and arrays contain ordered values. Those structures can be nested to represent records, lists, configuration data, API payloads, and other common interchange shapes. This tool validates JSON text before converting those structures into XML elements.
JSON is language independent, but it has interoperability rules worth remembering. JSON text exchanged between systems should be encoded as UTF-8, object member names should be treated as unordered, duplicate object names can be ambiguous, and very large or highly precise numbers may not round-trip consistently across tools.
What is Extensible Markup Language (XML)?
XML, or Extensible Markup Language, is a W3C-recommended markup language for representing structured information in text. XML documents use elements, attributes, character data, comments, processing instructions, and optional declarations to describe a document tree.
A well-formed XML document has exactly one document element, properly nested start and end tags, matching case-sensitive element names, and correctly escaped special characters. The characters < and & cannot appear as raw character data; they must be represented with entity or character references when they are not markup.
XML itself defines syntax, not application meaning. A receiving system, schema, or document format decides what particular element names and structures mean. That is why a generic JSON-to-XML converter can produce element-based XML text but cannot know whether a value should become an attribute, whether a namespace should be applied, or whether the result satisfies a specific XML vocabulary.
XML remains common in document formats, publishing workflows, enterprise integrations, web service protocols, feeds, and standards that need extensible markup, validation, namespaces, or mixed text-and-element content.
