What is JSON to XML Converter?

JSON to XML Converter is a powerful browser-based tool that transforms JSON (JavaScript Object Notation) data into well-formatted, valid XML (eXtensible Markup Language). It intelligently handles objects, arrays, nested structures, and primitive values while producing clean, standards-compliant XML output.

API Integration

Convert JSON API responses to XML format for systems that require XML input, enabling seamless integration with legacy platforms.

Data Migration

Transform JSON datasets into XML format for legacy systems, ensuring smooth data transitions across different platforms.

Configuration Files

Convert JSON configuration files to XML format for applications that use XML-based configuration systems.

Web Services

Prepare XML payloads from JSON data for SOAP or XML-based web services, facilitating enterprise system communication.

Your Data Stays Private: All conversion happens entirely in your browser. Your data never leaves your device, and we don't collect, track, or store any input data. Complete privacy guaranteed.

How to Use

Input Your JSON

Paste or type your JSON data into the left panel. You can also click the upload icon in the toolbar to load a JSON file directly from your device.

Automatic Conversion

The XML output appears automatically in the right panel as you type. Real-time conversion ensures you see results instantly.

Customize Options

Adjust conversion settings like root element name, array item naming, indentation style, and XML declaration preferences to match your requirements.

Export Results

Copy the XML output to your clipboard or download it as an XML file for use in your projects and applications.

Customization Options

Root Element

Set the name of the outermost XML element (default: root). This becomes the top-level container for your entire XML structure.

Array Item Name

Set the element name used for array items (default: item). Customize this to match your XML schema requirements.

Indentation Style

Choose your preferred indentation: 2 spaces, 4 spaces, or tab. Control the visual formatting of your XML output.

XML Declaration

Toggle the XML declaration header (<?xml version="1.0" encoding="UTF-8"?>) on or off based on your needs.

Features

Real-time Conversion

Experience instant JSON to XML conversion as you type. The converter uses intelligent debouncing to process changes efficiently without unnecessary overhead. Any modifications to conversion options—such as root name, item name, or indentation—trigger immediate re-conversion, giving you live feedback on your XML output.

Flexible Element Naming

Customize both the root element and array item element names to perfectly match your XML schema requirements. The converter automatically sanitizes invalid characters in JSON keys, replacing them with underscores to ensure all XML tag names are valid and standards-compliant.

JSON Input

Original Data

{
  "user name": "John",
  "123id": "abc"
}

XML Output

Sanitized Tags

<root>
  <user_name>John</user_name>
  <_123id>abc</_123id>
</root>

Conversion Rules

JSON Type	Conversion Behavior	Example
Objects	Each key becomes an XML element with child content	`{"name": "value"}` → `<name>value</name>`
Arrays	Wrapped in parent key, items use configured element name	`{"items": [1, 2]}` → `<items><item>1</item>...</items>`
Strings	Become text content with escaped special characters	`"text & more"` → `text & more`
Numbers	Converted to text content	`42` → `42`
Booleans	Converted to text "true" or "false"	`true` → `true`
Null	Rendered as self-closing tags	`null` → `<element />`

Automatic Character Escaping: Special XML characters (&, <, >, ", ') are automatically escaped to ensure valid XML output and prevent parsing errors.

Status Bar Information

The bottom status bar provides real-time feedback about your conversion:

Validation State — Shows whether your JSON is Valid, Invalid, or Ready for conversion
Element Count — Displays the total number of XML elements in the output
File Size — Shows the size of the generated XML output

Frequently Asked Questions

What JSON formats are supported?

The converter accepts any valid JSON object or array, including deeply nested structures. Single primitive values (strings, numbers, booleans) are not supported as standalone input because they cannot form meaningful XML structures. Your JSON must be a complete object {} or array [] at the root level.

How are arrays converted to XML?

Arrays are wrapped in their parent element, and each item is enclosed in the configured item element name. For example:

Array Conversion Example

// JSON Input
{"colors": ["red", "blue", "green"]}

// XML Output
<colors>
  <item>red</item>
  <item>blue</item>
  <item>green</item>
</colors>

You can customize the item element name to match your schema requirements.

What happens with special characters in JSON keys?

JSON keys that contain characters invalid for XML tag names are automatically sanitized to ensure valid XML output:

Spaces and special symbols are replaced with underscores
Keys starting with a number are prefixed with an underscore
Multiple consecutive invalid characters are collapsed to a single underscore

For example, "user name" becomes <user_name> and "123id" becomes <_123id>.

Is there a size limit?

Since all processing happens entirely in your browser, the practical limit depends on your device's available memory and processing power. The converter is optimized to handle large JSON files efficiently, but extremely large datasets (multiple megabytes) may cause slower performance or temporary browser lag.

Performance Tip: For very large files, consider breaking them into smaller chunks or using a desktop application for better performance.

Can I customize the output format?

Yes! The converter offers multiple customization options:

Root Element Name — Change the outermost XML element name
Array Item Element Name — Customize the element name used for array items
Indentation Style — Choose between 2 spaces, 4 spaces, or tab indentation
XML Declaration — Toggle the XML declaration header on or off

All options update the output in real-time, allowing you to see changes immediately.