XML to JSON Converter

Seamlessly translate between XML and JSON data formats locally. Safely handles attributes, namespaces, and arrays.

Ready to use Runs locally in your browser

How this tool works

Migrating from legacy XML-based APIs to modern JSON-based architectures is a daily challenge for enterprise developers. Whether you are dealing with rigid SOAP web services, complex RSS feeds, or legacy configuration files, having a fast, reliable way to bridge the gap between XML nodes and JSON objects is critical.

Our XML to JSON Converter is entirely client-side, making it the perfect choice for processing sensitive payloads. Whether you're debugging highly confidential financial data, banking SWIFT messages, or internal corporate data, your input never leaves your browser. You get instant, secure conversion with granular controls over how attributes and text content are mapped.

Input (XML)

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Output (JSON)

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This tool runs 100% in your browser; your data never leaves your device. Privacy details

Why Developers Need XML to JSON Conversion

XML (eXtensible Markup Language) and JSON (JavaScript Object Notation) are the two undisputed titans of data interchange on the web. While XML was the primary standard for over a decade—powering SOAP APIs, RSS, and enterprise configurations—JSON has largely overtaken it due to its lightweight syntax and native compatibility with JavaScript.

However, developers frequently encounter systems that still speak XML. You might need to integrate a modern JSON frontend with a legacy banking backend, or perhaps you're building a migration script to modernize an old database. A robust converter is essential to map verbose XML trees into concise JSON structures seamlessly.

How XML Attributes Map to JSON Keys

One of the main complexities in converting XML to JSON is the concept of attributes. JSON only has key-value pairs, while XML has elements and attributes.

To resolve this without data loss, our converter uses a common convention: mapping XML attributes to JSON keys prefixed with a special character, usually @. For instance, the XML snippet <user id="123" status="active">John</user> is translated into a JSON object containing "@id": "123" and "@status": "active". Our tool allows you to customize this prefix, giving you the flexibility to adapt the output to your specific schema requirements.

Handling Repeated Elements: When XML Becomes a JSON Array

Another significant structural difference is how lists are represented. In XML, a list is simply created by repeating the same element name consecutively. JSON, on the other hand, uses explicit array syntax [].

Our converter intelligently detects sibling XML elements with identical tags. When it spots this pattern, it automatically groups them into a JSON array under a single key. This prevents the newer keys from overwriting the older ones, ensuring that your data integrity remains flawless during the translation.

Converting SOAP Envelopes to REST-Compatible JSON

Enterprise developers often dread working with SOAP envelopes. They are notorious for being deeply nested and heavy on namespaces. Translating a SOAP response into something a modern REST API or React frontend can consume requires flattening and remapping.

Our tool parses these complex structures instantly. It preserves namespace prefixes (like soap:Envelope or xmlns:xsi) as part of the JSON keys. From there, you can easily traverse the JSON tree, extract the relevant payload, and feed it into your application logic. If you need to visualize the generated JSON structure, try our JSON Validator.

The Reverse Path: Generating XML from JSON Data

Sometimes the data flow goes the other way. You might have a clean JSON payload generated by a modern Node.js service that needs to be ingested by a legacy Java or .NET system requiring XML.

By switching to the JSON to XML mode, you can reverse the process. The tool will recursively crawl your JSON object, converting arrays into repeated tags and translating keys back into XML nodes. Keys prefixed with your designated attribute symbol are properly encoded back into XML attributes, ensuring the output perfectly matches the expected legacy schema. If you're working with other formats, you might also find our YAML to JSON Converter or CSV to JSON Converter useful.

Namespace Handling and Edge Cases

Parsing XML isn't always straightforward. Edge cases like CDATA sections, deeply nested mixed content, and self-closing tags can trip up naive parsers.

Our converter safely extracts text from CDATA blocks, treating them as standard JSON strings. When an element contains both text and child elements or attributes, the tool isolates the text into a configurable key (like #text) so no data is orphaned. We ensure that the hierarchy remains intact and logically sound. Need to tidy up your original XML first? Check out our XML Formatter.

Why Financial XML Payloads Must Stay Client-Side

Many enterprise XML formats, such as ISO 20022 for banking, contain highly sensitive financial and personally identifiable information (PII). Pasting this data into server-backed conversion tools can violate compliance standards like GDPR or SOC2.

ZeroDataTools is built with a privacy-first philosophy. Our XML to JSON Converter runs 100% within your browser using JavaScript and the native DOMParser API. No server calls are made, and your XML payloads are never uploaded or stored. You get enterprise-grade conversion power without compromising the security of your proprietary data.

How to Use the XML to JSON Converter

Select direction: Toggle between 'XML → JSON' or 'JSON → XML' using the top tabs.
Paste your XML or JSON input into the left-hand text editor.
Configure attribute and text content options by expanding the 'Options' panel.
Click the 'Convert' button to generate the output on the right.
Copy the output to your clipboard or download it directly as a file.

Common Use Cases

Converting SOAP XML APIs to modern REST JSON format: Modernize legacy systems by quickly translating SOAP endpoints into JSON structures for newer RESTful services.
Migrating Spring Boot XML configuration to JSON: Convert older Java/Spring XML-based bean configurations into modern JSON or YAML-friendly layouts.
Transforming RSS feeds for JavaScript frontend consumption: Turn XML-based RSS or Atom feeds into JSON arrays that can be easily looped through in React, Vue, or plain JS.
Converting Android XML resources to JSON for tooling: Translate Android string resources, colors, or layouts from XML to JSON for cross-platform localization and scripting tools.
Translating OpenAPI XML examples to JSON: Toggle between XML and JSON request/response payload examples when building or consuming Swagger/OpenAPI documentation.
Processing banking/financial SWIFT XML messages privately: Because this tool runs entirely locally, you can securely inspect and convert financial ISO 20022 XML formats without data leaks.

Frequently Asked Questions

How are XML attributes handled in the JSON output?

By default, XML attributes are converted to JSON properties with an `@` prefix. For example, `<node id="1">` becomes `{"@id": "1"}`. You can customize this prefix in the tool's options.

How does this tool handle repeated XML elements?

When multiple XML elements share the same tag name within a parent, they are automatically converted into a JSON array, ensuring no data is overwritten or lost during conversion.

Can I convert JSON back to XML?

Yes! This tool is bidirectional. Click the 'JSON → XML' button at the top to paste JSON and instantly generate valid XML output.

What is the `#text` key in the output?

When an XML element contains both attributes and text content, the text content must be mapped to a specific JSON key to preserve the object structure. By default, this is mapped to `#text`.

How are XML namespaces handled?

XML namespaces (like `soap:Envelope`) are preserved verbatim as part of the element keys in the JSON output, keeping namespace definitions intact.

Why does my SOAP envelope look different after conversion?

SOAP envelopes are typically heavily nested XML structures with many attributes and namespaces. This tool flattens them into JSON objects while preserving all namespace prefixes and nested hierarchies.

Is CDATA content preserved?

Yes, XML CDATA sections (character data that should not be parsed) are extracted and converted into standard JSON string values safely.

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