Konverter
JSON ↔ XML
The JSON ↔ XML Converter translates between JSON (JavaScript Object Notation) and XML (eXtensible Markup Language) in both directions. Developers regularly need this when integrating REST APIs that produce JSON with legacy SOAP services or enterprise systems that consume XML, or when migrating data between storage formats. The tool handles nested structures, arrays, and attributes automatically.
What are JSON and XML?
JSON is a lightweight, text-based data interchange format derived from JavaScript object syntax. It natively represents objects, arrays, strings, numbers, booleans, and null. XML is a markup language that encodes data in a hierarchical tree of elements and attributes, with a rich ecosystem of schemas (XSD), transformations (XSLT), and query languages (XPath, XQuery). JSON is the dominant format for modern REST APIs due to its simplicity, while XML remains prevalent in enterprise integrations, SOAP services, document formats (DOCX, SVG), and data feeds (RSS, Atom).
How does the converter work?
For JSON-to-XML, the tool wraps the root object in a configurable root element (default: <root>) and recursively converts each key into a child element. JSON arrays produce repeated sibling elements with the same tag name. Numbers, booleans, and null are converted to their string representation as text content. For XML-to-JSON, the tool parses the XML using a DOM parser, maps element names to JSON keys, repeated sibling elements to JSON arrays, and text content to string values. XML attributes are optionally mapped to prefixed JSON keys (e.g. @attr).
Typical Use Cases
- Converting a REST API JSON response to XML for ingestion by a legacy SOAP or EDI system
- Transforming XML configuration or data files into JSON for processing with modern JavaScript tooling
- Migrating data exports from XML-based systems to JSON-based storage
- Inspecting the XML structure of DOCX or SVG files in JSON form for easier manipulation
Step-by-step Guide
- Step 1: Paste your JSON or XML content into the input field.
- Step 2: Select the direction: JSON → XML or XML → JSON.
- Step 3: Set the root element name for JSON-to-XML if the default 'root' is not suitable.
- Step 4: Copy or download the converted output.
Example
Input
{"user":{"name":"Alice","age":30}}
Output
<root><user><name>Alice</name><age>30</age></user></root>
Tips & Notes
- XML requires a single root element; the tool wraps JSON objects in a <root> element by default – change this to match your target schema.
- JSON arrays of primitives (e.g. [1,2,3]) are converted to repeated <item> elements; rename the element in the options if needed.
- For XML namespaces and complex schemas, manual adjustment of the output is usually required after conversion.
Frequently Asked Questions
Does the converter handle XML namespaces?
Basic namespace prefixes are preserved in element names during XML-to-JSON conversion. Creating namespace-aware XML from JSON requires manual configuration, as JSON has no namespace concept.
How are XML attributes handled?
XML attributes are mapped to JSON keys prefixed with @ (e.g. <user id='1'> → {"@id":"1",...}). In the reverse direction, @-prefixed keys are emitted as XML attributes.
Can I convert SOAP envelopes?
Yes, SOAP XML is valid XML and can be converted to JSON. However, the resulting JSON will include namespace prefixes and SOAP-specific wrapper elements that you may need to strip.
JSON ↔ XML
Convert JSON to XML and XML to JSON — live, bidirectional, and with syntax validation.
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