🔄 XML to JSON Converter
Runs entirely in your browser - no data sent to server
Output appears here...
📊 Key Data Points
DOMParser
Uses the browser native XML parser — handles all valid XML including namespaces
@ prefix
Attributes mapped to @name keys following the de-facto JSON-from-XML convention
Array auto-detect
Repeated sibling elements auto-convert to JSON arrays
XML to JSON Converter -- Complete USA Guide 2026
Legacy SOAP APIs, RSS feeds, SVG files, and XML configuration files all output XML. Modern JavaScript, REST APIs, and NoSQL databases all expect JSON.
This converter handles real-world XML edge cases and runs entirely in your browser.
**Long-tail searches answered here:** convert XML SOAP response to JSON online, RSS feed XML to JSON converter free, parse XML attributes as JSON properties browser tool.
For the reverse operation, see the XML Formatter.
🔬 How This Calculator Works
Parses XML using the browser native DOMParser API. Attributes map to @attribute_name keys. Text nodes become a #text key when mixed with child elements, or the direct string value when the element has only text content. Repeated sibling elements with the same tag name become JSON arrays automatically.
✅ What You Can Calculate
SOAP and REST bridge
Convert SOAP/XML API responses to JSON for processing with modern JavaScript. Handles SOAP envelope, body, and namespace-prefixed elements.
RSS/Atom feed parsing
Convert RSS and Atom XML feeds to JSON arrays for building feed aggregators or indexing content without an XML parser dependency.
Attribute preservation
XML attributes map to @attribute_name keys — preserved in the JSON output rather than being silently dropped.
Repeated element handling
Multiple sibling elements with the same tag automatically become JSON arrays, solving the single-vs-multiple ambiguity that breaks naive converters.
🎯 Real Scenarios & Use Cases
Migrating from SOAP to REST
Your legacy backend returns SOAP XML. Convert responses here to prototype the data structure you will need for your new REST layer.
Processing RSS feeds
Parse RSS or Atom XML into a JSON structure you can filter with JSONPath Tester and load directly into a React component.
SVG data extraction
SVG files are XML. Extract specific element attributes or text content by converting to JSON and then querying with JSONPath expressions.
Config file migration
Old Java/Spring applications use XML configuration. Convert to JSON to understand the structure before migrating to YAML.
💡 Pro Tips for Accurate Results
Namespace prefixes become part of the key. soap:Body becomes soap:Body in JSON — a valid key but awkward to query. Strip namespaces with a regex on the XML before converting if you do not need them.
CDATA sections become text. CDATA content becomes the #text value of its parent element.
Validate JSON output. Run the converted JSON through JSON Formatter to check structure.
Use JSONPath after converting. The JSONPath Tester lets you extract specific fields from the converted JSON without writing traversal code.
🔗 Use These Together
🏁 Bottom Line
XML-to-JSON conversion is rarely a clean mapping. This tool applies consistent conventions so the output is predictable.
Complete workflow: convert here, validate with JSON Formatter, extract fields with JSONPath Tester.
How does XML structure map to JSON?
XML to JSON conversion requires decisions about structure: XML elements become JSON object keys. XML text content becomes the value. XML attributes can become a special key (like @attributes) or be flattened alongside child elements. XML elements that repeat become JSON arrays. Empty elements become null, empty string, or an empty object depending on the converter. This tool uses a conventional mapping: attributes as @attr key, text content as #text key when mixed with child elements, and repeated elements as arrays automatically.
What is lost when converting from XML to JSON?
XML features that have no JSON equivalent: XML comments (<!-- comment -->) are dropped. Processing instructions (<?xml-stylesheet?>) are dropped. XML namespaces are either dropped or encoded as key prefixes. The distinction between attributes and child elements is collapsed (both become keys). Mixed content (text interleaved with child elements) loses its structure. Document type declarations (DTD) are dropped. CDATA sections are converted to plain strings. If your application logic relies on any of these XML-specific features, conversion to JSON requires extra handling.
What are common use cases for converting XML to JSON?
Legacy API migration: older SOAP or XML REST services returning XML need conversion for modern JavaScript clients. Configuration transformation: some CI/CD tools accept only JSON input but receive XML from legacy systems. Database import: XML data exports need JSON format for document databases (MongoDB) or JSON columns in PostgreSQL. Data pipeline processing: JSON is the standard format for most streaming and ETL tools. XSLT to JavaScript migration: replacing XML/XSLT pipelines with JSON-based JavaScript rendering.
How do I convert SOAP XML responses to JSON in JavaScript?
SOAP responses are XML wrapped in a SOAP envelope. Parse with DOMParser: const parser = new DOMParser(); const doc = parser.parseFromString(soapXml, 'text/xml'). Then navigate with XPath or DOM methods to extract values. For systematic conversion: use the xml2js npm package (Node.js: xml2js.parseString(xml, callback)) or fast-xml-parser for high performance. The result is a JavaScript object that can be serialized to JSON. SOAP-specific wrappers (soap:Body, soap:Envelope) will appear as nested keys — strip them to get to the actual data.
How do I handle XML with namespaces in the conversion?
XML namespaces appear as xmlns declarations and prefix:element notation. In converted JSON, namespace prefixes either appear as part of the key name (prefix:element → 'prefix:element' key) or are stripped. Stripping namespaces is simpler but loses type information when the same element name exists in multiple namespaces. Preserving prefixes maintains disambiguation but produces uglier JSON keys. For SOAP or XBRL XML where namespaces carry semantic meaning, preserve them. For simple data XML where namespaces are boilerplate, strip them.
How do I convert JSON back to XML?
The reverse conversion (JSON to XML) requires decisions about root element name (JSON has no equivalent) and array handling (JSON arrays become repeated XML elements). This tool handles the reverse direction as well. Programmatically: most xml2js and fast-xml-parser equivalents support JSON-to-XML. The result is valid XML but may not match the original structure if the JSON was modified after the initial conversion — some information (comments, attribute vs element distinction) was lost in the XML-to-JSON direction and cannot be fully reconstructed.
What other data format tools are on this site?
The XML Formatter validates and beautifies XML before conversion. The JSON Formatter validates the converted JSON output. The JSONPath Tester queries the converted JSON data. The CSV to JSON tool handles another common data format conversion. The YAML Formatter covers YAML which is another JSON-compatible format. All are in the Dev Tools section.