JSON 🔄 JSON ⇔ XML conversion

Can convert between JSON and XML. Supports specifying root element names and formatted output. All processing is done in the browser, so data is never sent outside the browser.

Usage and Application Examples

  • Convert REST API JSON response to XML format and link to another system
  • Convert SOAP API XML response to JSON for front-end use
  • Format conversion of configuration files (JSON settings → XML settings)
  • Parses XML-based data (RSS, SVG, etc.) in JSON format

What is JSON ⇔ XML Converter?

JSON and XML are the two dominant data formats in web development and enterprise systems. This bidirectional converter transforms between them seamlessly. JSON is lighter and more readable for modern APIs, while XML remains standard in SOAP services, office documents, and legacy systems. Converting between formats is crucial when integrating different systems or migrating data between platforms.

How to Use

Paste JSON or XML into the left editor and click convert. The tool automatically detects the format and transforms it to the opposite type. Choose formatting options like pretty-print to add indentation for readability, or compact mode to minimize file size. The tool preserves data types and structure, though some formatting details may normalize—XML attributes become JSON properties. Validate the output by examining the converted data before using it.

Use Cases

• Legacy system integration: Convert JSON responses from modern APIs into XML for SOAP-based enterprise systems that require XML input.
• Office document processing: Extract data from XML-based file formats (DOCX, XLSX) and convert to JSON for simpler manipulation in JavaScript.
• Configuration migration: Transform configuration files from XML (common in Java/Spring projects) to JSON (preferred in Node.js projects).
• Data import/export: Convert data from XML feeds (news, RSS) into JSON for database insertion or API consumption.

Tips & Insights

XML attributes and elements are semantically different but both become JSON properties, so converting back to XML may not preserve original structure. Use consistent naming conventions—XML tags often use hyphens while JSON keys use camelCase, requiring manual adjustment for consistency. Be aware of XML namespaces; the converter handles standard cases but complex namespace scenarios may require post-processing. File size increases when converting from XML to JSON because attributes become full properties.

Frequently Asked Questions

How is the conversion from JSON to XML done?

JSON keys are converted to XML element names and values are converted to text nodes. Arrays are represented as repeated elements of the same name. The root element name can be specified freely.

What structure is used in XML to JSON conversion?

XML elements are converted to JSON objects. Attributes are stored as keys prefixed with "@" and text content is stored in the "#text" key. Child elements with the same name are represented as an array.

Will data be lost during conversion?

Since JSON and XML have different data models, complete inter-conversion is not guaranteed. For example, XML attributes, namespaces, and comments are represented specially on the JSON side. Basic data structures will be converted exactly.

What is a root element name?

XML requires one root element at the top level; you can specify the name of this root element during JSON to XML conversion. The default is "root".

Can I convert large files?

Since the data is processed in the browser, data of a few MB can be converted without problems. For very large files, processing may be slow due to browser limitations.

Is the converted data sent to the server?

No. All processing is completed within the browser. All processing is completed within your browser and no data is ever sent to the server. You can use this service with peace of mind.

How are JSON properties converted to XML attributes vs elements?

By default, JSON properties become XML elements. To create attributes instead, prefix properties with @ in JSON (like @id), and the converter recognizes this convention to create XML attributes. This control allows you to decide whether data becomes element content or attribute values.

How does the tool handle null values and empty strings?

Empty strings convert to empty XML elements, while null values are typically converted to elements with no content or omitted entirely. This distinction helps preserve the difference between 'no data' (null) and 'empty data' (empty string) when converting between formats.

Can I specify XML namespaces during conversion?

This tool supports basic namespace handling by allowing namespace declarations on the root element, which are preserved during conversion. For complex scenarios with multiple prefixes, you may need to manually adjust the XML output after conversion.

What happens to special characters like & and < during conversion?

Special characters are automatically escaped during JSON-to-XML conversion (& becomes &amp;, < becomes &lt;). When converting back to JSON, these entities are decoded, ensuring data remains valid and readable in both formats.

How are JSON arrays converted to XML structure?

Arrays are converted to repeating elements with the same tag name. For example, a JSON array of items becomes multiple <item> elements in XML. If you need the array name as a wrapper element, adjust the structure manually to match your XML requirements.

Is CDATA section support available?

The tool converts text content to CDATA sections when needed for content containing special characters or markup. During XML-to-JSON conversion, CDATA content is extracted as plain text, though for precise CDATA handling you may need to adjust the output manually.