JSONFormatting.org

Data Converter

JSON ↔ XML Converter

Convert JSON to XML for legacy and SOAP integrations, or turn XML responses into clean JSON.

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Convert JSON to XML and XML to JSON

Plenty of enterprise systems, SOAP web services, and legacy APIs still speak XML, while modern tooling speaks JSON. This converter bridges the two so you can integrate with older systems without hand-writing XML tags or an XML parser.

How the conversion works

  • JSON → XML: Object keys become element tags. Arrays produce repeated sibling elements sharing the parent key's tag name. Set a custom root tag name if your target system expects one (e.g. <response> instead of <root>).
  • XML → JSON: Parsed with the browser's native, spec-compliant XML parser, then converted to a nested JSON object. Repeated sibling tags automatically become a JSON array; attributes are captured with an @ prefix and text content with #text when an element mixes attributes and text.

Typical use cases

  • Legacy integrations: Convert a JSON payload to XML for a SOAP endpoint, or an XML response into JSON for your modern frontend.
  • RSS/Atom feeds & sitemaps: Quickly inspect the structure of an XML feed as JSON.
  • Config migrations: Move configuration between XML-based tools (like older Java/.NET systems) and JSON-based ones.

Curious why JSON overtook XML for most new APIs? See XML vs JSON: A Legacy Comparison.

Frequently Asked Questions

Attributes are captured as JSON keys prefixed with @, e.g. <user id="1"> becomes {"@id": "1"}. If the element also has text content alongside attributes, that text is stored under a #text key.
Sibling elements that share the same tag name are collected into a JSON array automatically, matching how most JSON-XML conversion libraries behave.
Yes — use the “Root tag” field when converting JSON → XML. It defaults to <root>.
Basic namespace prefixes (like ns:tag) pass through as literal tag names. Full namespace-aware processing isn't supported.
No. Parsing and conversion happen entirely in your browser using its built-in XML parser and JavaScript — nothing is sent to a server.