XML to JSON

Free online XML to JSON converter. Convert XML documents and feeds into formatted JSON objects with attribute preservation and zero server uploads.

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Client-side processingInput data is processed in client memory and discarded on tab close.

Standards-Compliant ParserStrict ECMAScript & RFC syntax verification with error tracing.

Clean Code ExportCopy structured JSON, code snippets, or hashes ready for production.

Technical Overview: How XML to JSON Works

XML to JSON converts Extensible Markup Language (XML) documents into clean, structured JSON objects, preserving node hierarchies, XML attributes, text content, and array groupings.

Parses the XML DOM tree using browser-native DOMParser APIs, recursively mapping XML elements into nested JSON objects. It handles XML namespaces, converts repeated sibling nodes into JSON arrays, and preserves element attributes using structured `@attributes` or prefix notations.

Practical Examples & Usage

Converting Book Catalog XML to JSON

Input:<catalog><book id="bk101"><title>Developer Guide</title><price>29.99</price></book></catalog>

Output:

{
  "catalog": {
    "book": {
      "@attributes": { "id": "bk101" },
      "title": "Developer Guide",
      "price": "29.99"
    }
  }
}

Preserves the XML tag hierarchy and captures element attributes in a dedicated object.

Real-World Applications & Use Cases

Modernizing legacy SOAP service responses for consumption in modern REST and GraphQL frontend clients.
Parsing XML RSS and Atom podcast/blog feeds into lightweight JSON data structures.
Converting enterprise XML configuration files (e.g. Maven pom.xml, AndroidManifest.xml) into JSON.
Migrating relational and XML database exports to JSON document stores.

How to use XML to JSON

Paste your raw, well-formed XML data into the left editor pane.
The conversion engine will instantly parse the XML and generate JSON.
Review the highly readable, automatically formatted JSON in the right pane.
If there are syntax errors in your XML, a red alert will highlight the issue.
Click "Copy JSON" to use the converted data in your modern applications.

Edge Cases & Limitations

•XML documents must be well-formed with closing tags; malformed XML triggers a DOMParser XML parsing error.
•Single elements cannot be automatically distinguished from one-item lists without an explicit XML schema (XSD).
•XML CDATA sections (`<![CDATA[...]]>`) are extracted as raw string content.

Recommended Best Practices

•Strip unneeded XML comments and processing instructions prior to conversion to produce cleaner JSON.
•Ensure consistent naming conventions between camelCase JSON and PascalCase/kebab-case XML schemas.
•Validate source XML against its DTD or schema before converting large datasets.

Data Handling Profile

Client-side processing

Processing Runtime: All text transformations, mathematical calculations, code formatting, and asset conversions execute locally inside your web browser sandbox.
Memory & Storage: Processed text and parameters are handled in browser memory. Optional configuration preferences (like dark/light theme) are stored in your browser local storage for convenience.
Network Transmission: Tool inputs and calculation results are processed in browser memory and are not uploaded to Outlivo application servers.

Frequently Asked Questions

How does it handle XML attributes?

The conversion algorithm intelligently translates XML attributes into standard JSON properties, usually prefixing them with an "@" symbol to distinguish them from standard child nodes.

Is my proprietary XML data uploaded to a server?

No. The conversion logic runs entirely via client-side JavaScript. Your proprietary configurations and data structures remain strictly on your own device.