Convert XML to JSON Online Free

Transform XML documents into structured JSON objects. Elements become properties, attributes are preserved, and nested structures are fully mapped. Ideal for modernizing legacy data.

Quick Answer

To convert XML to JSON, drop your .xml file onto the converter. The XML is parsed using fast-xml-parser and mapped to a JSON object structure. Elements become keys, text content becomes values, and attributes are preserved. Runs entirely in your browser.

Free, no signup Files stay on your device Under 1 minute
100% browser-based
No file size limits
Works offline
No data uploaded

Convert XML to JSON

Drop your XML file here to convert it instantly

Drag & drop your .xml file here, or click to browse

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XML vs JSON: Format Comparison

Key differences between the two formats

FeatureXMLJSON
SyntaxVerbose tags with opening/closing pairsConcise braces and brackets
AttributesSupported on elementsNo native equivalent (mapped to properties)
NamespacesFull namespace supportNo namespace concept
Schema validationXSD, DTD, Relax NGJSON Schema
CommentsSupported with <!-- -->Not supported
File sizeSignificantly larger30-50% smaller for same data
ParsingDOM/SAX parsers requiredNative browser support with JSON.parse()

When to Convert

Common scenarios where this conversion is useful

Modernizing legacy APIs

Convert SOAP/XML API responses to JSON for use in modern REST-based applications and JavaScript frontends.

Processing RSS and Atom feeds

RSS and Atom feeds are XML-based. Convert them to JSON for easier processing in web applications and mobile apps.

Parsing configuration files

Many enterprise systems use XML configuration (Maven pom.xml, Spring configs, .NET web.config). Convert to JSON for programmatic processing.

Data migration

Migrate data from XML-based systems to JSON-based NoSQL databases like MongoDB, CouchDB, or Elasticsearch.

How to Convert XML to JSON

  1. 1

    Upload your XML file

    Drag and drop your .xml file onto the converter, or click to browse. Any well-formed XML document is accepted.

  2. 2

    Automatic conversion

    Your XML is parsed and mapped to a JSON object tree. Elements become keys, text content becomes values, and repeated elements become arrays.

  3. 3

    Download the JSON result

    Click Download to save your .json file. The output is pretty-printed with proper indentation for readability.

Frequently Asked Questions

XML attributes are mapped to properties prefixed with '@_' by default. For example, <item id="5"> becomes {"item": {"@_id": "5"}}.

When an element name appears multiple times under the same parent, the values are collected into a JSON array automatically.

Namespace prefixes are included in the property names. For example, <ns:element> becomes the key 'ns:element' in the JSON output.

CDATA content is extracted as plain text. The CDATA wrapping is removed, and the inner content becomes a string value.

No. XML comments are stripped during conversion because JSON does not support comments.

Yes. The parser handles files up to several hundred megabytes depending on your device's memory. The conversion runs entirely in the browser.

In most cases, yes. You can convert the JSON back to XML using the JSON to XML converter. However, some XML-specific features like processing instructions and DOCTYPE declarations are not preserved.

Elements with both text and child elements have the text stored in a '#text' property alongside the child element properties.

The XML declaration (<?xml version="1.0"?>) and DOCTYPE are parsed but not included in the JSON output since they are metadata, not data.

Yes. The entire conversion runs in your browser. No XML data is transmitted to any server.

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