JSON to XML Converter

About JSON to XML Converter

The JSON to XML Converter transforms any valid JSON document into well-formed, properly indented XML. Whether you are integrating modern REST APIs with legacy SOAP services, generating XML configuration from JSON sources, converting data between formats for enterprise interoperability, or building XML feeds from JSON databases, this tool produces standards-compliant output instantly in your browser.

What Makes This Tool Unique

Unlike simple text-replacement approaches, this converter understands JSON semantics and maps them to proper XML structures. Objects become nested elements, arrays become repeated sibling elements, null values are represented with self-closing tags, and special characters are automatically escaped to produce valid XML. The output is always well-formed and passes XML validation, making it safe for downstream processing by XML parsers, XSLT transforms, and schema validators.

Key Features

• Customizable root element — set the name of the XML root element to match your schema requirements or target namespace.
• Array item naming — configure how JSON arrays map to repeated XML elements with custom tag names for each array type.
• Pretty-print output — generates indented, human-readable XML with configurable indentation levels for clean formatting.
• Attribute mapping — optionally map specific JSON keys to XML attributes instead of child elements for compact output.
• XML declaration — optionally include the <?xml version="1.0"?> declaration header in the output.
• Special character escaping — automatically handles &, <, >, quotes, and other reserved XML characters.

Detailed Walkthrough

1. Input JSON — paste JSON into the left editor, upload a .json file from your computer, or fetch JSON from a remote URL.
2. Set root element — specify the name for the XML root element (default: <root>) to match your expected schema.
3. Configure array handling — choose how JSON arrays are represented: as repeated elements with singular names or wrapped in a container element.
4. Convert — click Convert or press Ctrl+Enter to generate the XML output instantly.
5. Export — copy the XML to your clipboard or download it as an .xml file for use in your project.

Real-World Scenarios

• Converting JSON API responses to XML for SOAP-based legacy system integration in enterprise environments.
• Generating XML sitemaps, RSS feeds, or Atom feeds from JSON content management system data.
• Transforming JSON configuration files into XML format for Java Spring, .NET, or Apache projects.
• Creating XML test fixtures from JSON sample data for automated testing pipelines.
• Building XML payloads for financial messaging systems (FIX, ISO 20022) from JSON transaction data.

Pro Tips

When converting JSON with arrays, use meaningful singular names for array items. For example, if your JSON has "users": [{...}, {...}], configure the array item name as user so the output becomes <users><user>...</user><user>...</user></users>. This produces cleaner, more semantic XML that is easier to process with XPath and XSLT. For JSON keys that start with numbers or contain invalid XML characters, the converter automatically prefixes or escapes them to maintain well-formedness.