XML ↔ JSON Converter

Reference

What are XML and JSON?

XML (eXtensible Markup Language) is a markup language for encoding documents in a format that is both human-readable and machine-readable. It uses tags to define elements and attributes for metadata. JSON (JavaScript Object Notation) is a lightweight data-interchange format using key-value pairs, arrays, strings, numbers, booleans, and null. While JSON dominates modern web APIs, XML remains essential in enterprise systems (SOAP, RSS, SVG, XHTML), configuration files (Maven, Android), and document formats (DOCX, XLSX).

XML vs JSON — key differences

XML supports attributes, mixed content (text + elements), namespaces, schemas (XSD), and XSLT transformations. It is more verbose but more expressive. JSON is more compact, natively supported in JavaScript, and has simpler parsing. JSON has no attributes, comments, or mixed content.
Conversion notes: XML attributes are mapped to @attribute keys in JSON. Multiple same-name XML elements become JSON arrays. Text-only elements become simple string values.

When to convert between XML and JSON

API migration — convert legacy SOAP/XML APIs to JSON for modern REST clients. Configuration — convert Maven pom.xml or Android XML configs to JSON for processing. Data exchange — bridge systems that use different formats (e.g., XML-based enterprise systems ↔ JSON-based web apps). RSS/Atom feeds — parse XML feeds and convert to JSON for JavaScript applications. Testing — convert between formats to verify data roundtrips correctly.

Privacy

All conversion runs 100% in your browser using the native DOMParser API. No data is sent to any server.