Transform JSON data into properly formatted XML documents with comprehensive customization options. Our converter handles complex nested structures, arrays, attributes, and provides validation to ensure well-formed XML output. Perfect for API integrations, data migrations, configuration file conversions, and cross-platform data exchange.

How to Convert JSON to XML

Prepare your JSON data by pasting it into the input area or use the Format JSON button to validate and beautify your input
Configure conversion options including root element name, array element naming, attribute prefix (@), and text node identifier (#text)
Choose formatting preferences such as pretty printing, XML declarations, attribute conversion, and comment inclusion
Click Convert to XML to transform your data and review the conversion results including element counts and processing time
Copy the generated XML to clipboard or download as a file with proper XML formatting and escaping

Advanced JSON to XML Features

Customizable conversion options with root element names, array handling, and attribute mapping
Attribute mapping using configurable @ prefixes for converting JSON properties to XML attributes
Text node handling with special #text property support for mixed content scenarios
Array and object processing with customizable container names and nested structure preservation
XML standards compliance with proper character escaping, namespace declarations, and validation
Formatting options including pretty printing, XML declarations, and generation comments
Performance analytics with processing time, element counts, and file size metrics
Real-time validation with comprehensive error reporting and JSON format checking
Download and clipboard functionality for immediate use of generated XML output
Sample data loading with pre-configured examples for testing and learning

Why Use Our JSON to XML Converter

Our JSON to XML converter provides professional-grade transformation capabilities with advanced customization options and standards compliance. Unlike basic converters, we offer comprehensive control over XML structure, attribute mapping, formatting preferences, and validation. The tool handles complex nested data, arrays, and mixed content scenarios while maintaining data integrity. With client-side processing, your data stays secure, and real-time validation ensures error-free conversions for reliable data exchange and system integration.

Common JSON to XML Use Cases

API Data Transformation

Convert REST API responses from JSON to XML format for legacy system integration, SOAP services, or systems that require XML data interchange with proper structure preservation.

Configuration File Migration

Transform JSON configuration files to XML format for applications that require XML-based configuration, maintaining all data structure and hierarchy with custom element naming.

Data Export & Import

Export database records from JSON format to XML for import into XML-based systems, ensuring proper data type preservation and structure mapping with validation.

Document Generation

Convert structured JSON data to XML format for document generation systems, report builders, and template engines that consume XML input with specific formatting requirements.

Cross-Platform Integration

Bridge modern JSON-based applications with legacy XML systems by providing reliable data format conversion with customizable mapping rules and namespace support.

Testing & Validation

Convert test data between formats for comprehensive testing scenarios, ensuring data integrity across different system interfaces and APIs with proper validation.

JSON to XML Conversion Best Practices

Use @ prefix in JSON properties to convert them to XML attributes for metadata and identifiers
Employ #text property name for text content within XML elements that also contain child elements
Structure arrays with consistent object types for cleaner XML output and better schema compliance
Test with sample data first to verify attribute and element mapping before processing large datasets
Enable pretty printing for human-readable XML during development and debugging phases
Include XML declarations when creating standalone XML documents for proper document identification
Use meaningful root element names that reflect your data structure and intended XML schema
Validate JSON input before conversion to avoid parsing errors and ensure data quality
Consider namespace requirements for complex XML schema compliance and system integration
Use comments option for documentation in generated XML files to improve maintainability

JSON to XML Conversion Technology

Our JSON to XML converter uses advanced parsing algorithms to transform JSON data structures into well-formed XML documents while preserving data integrity and relationships. The conversion process includes strict JSON validation, intelligent type mapping, automatic XML character escaping, and configurable structure transformation rules. We support complex scenarios including attribute mapping through @ prefixes, text content handling via #text properties, array serialization with customizable element names, and namespace declarations for schema compliance. The converter ensures XML standards compliance with proper encoding, character escaping, and validation against XML well-formedness rules.

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JSON to XML Converter FAQ

How do I handle JSON properties that should become XML attributes?

Use the @ prefix in your JSON property names. For example, {"@id": "123", "name": "John"} converts to <element id="123">John</element> when attributes are enabled in the conversion options.

What happens to JSON arrays in XML conversion?

Arrays are converted to multiple elements with the same name or wrapped in a container element. You can customize the array element name in the conversion options to match your XML schema requirements.

Can I convert large JSON files?

Yes, the converter handles large files efficiently with performance metrics. Processing happens entirely in your browser, so larger files may take more time but don't require server uploads, keeping your data secure.

How are null values handled in XML output?

Null values are converted to self-closing elements with xsi:nil="true" attribute, following XML schema standards for null value representation and ensuring compatibility with XML parsers.

Is the generated XML valid and well-formed?

Yes, the converter ensures well-formed XML output with proper character escaping, namespace declarations, XML structure validation, and compliance with XML standards for reliable parsing and processing.

Can I customize the XML formatting and structure?

Absolutely! You can customize root element names, attribute prefixes, array element names, text node handling, formatting options, XML declarations, and comment inclusion for complete control over output structure.