JSON XML Converter

Direction is detected from what you paste. Use the toggle to override it.

Conversion Options

Root Element Name

Include XML declarationPretty print output

JSON Input

XML Output

How to Convert JSON to XML and XML to JSON Online

Paste or type your JSON

Enter your JSON data into the input panel. You can paste objects, arrays, or nested structures. Click Load Example for a sample conversion.
Configure conversion options

Set the root element name (default is "root"). Toggle the XML declaration and pretty-print formatting depending on whether you need a standalone document or compact fragment.
Click Convert to XML

Press Convert to XML. The tool maps objects to elements, converts arrays to repeated tags, and translates @-prefixed keys into attributes. Results appear instantly.
Copy or download the result

Copy the XML to your clipboard or download it as an.xml file. The output is ready for SOAP requests, configuration files, or any XML-based workflow.

Common Use Cases

SOAP and Legacy API Integration

Many enterprise systems rely on SOAP web services that accept only XML payloads. Convert JSON API responses to well-formed XML before sending them to SOAP endpoints, payment gateways, or government portals.

Configuration File Migration

Application servers like Tomcat and IIS use XML configuration files. When your source data lives in JSON, quickly convert it to the XML format these platforms expect.

Data Exchange Between Systems

Partner APIs, EDI pipelines, and B2B platforms often require XML. Convert JSON exports from REST APIs or databases into XML documents that meet schema requirements.

Generating RSS and Sitemap Feeds

RSS feeds and XML sitemaps follow strict XML schemas. Start with a JSON list of content items or URLs, then convert to XML for valid feeds that search engines and feed readers can consume.

Why Use JSON to XML Converter?

JSON to XML conversion is needed when integrating with legacy systems, SOAP APIs, or XML-based configurations. This tool preserves data structure and supports attribute notation.

The JSON to XML Converter transforms JavaScript Object Notation into Extensible Markup Language with a single click. It handles nested objects, arrays, attributes, and mixed content while running entirely in your browser -- your data is never uploaded to a server. Use the XML Formatter afterward to further adjust indentation.

JSON dominates web APIs and NoSQL databases, while XML remains the standard for enterprise integration, SOAP services, and document markup. Converting between them lets you bridge these ecosystems without writing custom parsers. For the reverse direction, try the XML to JSON Converter, or use the JSON YAML Converter for config files.

Pair this tool with the JSON Formatter to clean up input and the JSON Visualizer to inspect complex nested structures before conversion.

How it compares

JSON is lighter and easier to parse in JavaScript, while XML offers namespaces, attributes, and mature schema validation through XSD and DTD. When a system expects XML, converting from JSON is faster than rewriting data by hand.

An online converter eliminates malformed tags, unclosed elements, and encoding issues. It also handles edge cases like arrays becoming repeated elements and nulls becoming empty tags. For other formats, try the JSON to CSV Converter or the JSON to TypeScript tool.

Tips for Better Conversions

Use the @-prefix to create XML attributes instead of child elements, e.g. {"@id": "5"} becomes id="5" on the parent tag.
Set a meaningful root element name like "order" or "config" instead of the default "root" to produce self-documenting XML.
Enable the XML declaration when saving as a standalone.xml file or sending as an HTTP payload with Content-Type application/xml.
Validate your JSON first with a formatter to catch syntax errors before conversion.
For deeply nested JSON, enable pretty-print to visually inspect the XML hierarchy and spot mapping issues.

FAQ

How do I specify XML attributes?

Use the @ prefix for attributes in your JSON. For example, { "@id": "123", "#text": "content" } creates <element id="123">content</element>.

How are arrays converted?

JSON arrays become repeated XML elements with the same tag name. For example, { "items": [1, 2, 3] } becomes <items>1</items><items>2</items><items>3</items>.

What if my JSON has multiple root keys?

When JSON has multiple root keys, they are wrapped in a root element (default: 'root'). You can customize the root element name in the options.

Does this converter require a signup?

No. It is available with no signup, no limits. All processing happens in your browser.

Is my data safe when converting JSON to XML online?

Yes. The conversion runs entirely in your browser. Your data is never sent to any server, making it safe for sensitive information.

How are null values handled in the XML output?

Null values in JSON are converted to empty XML elements. For example, { "field": null } produces <field></field> or <field/> depending on the formatting options.

Can I convert deeply nested JSON to XML?

Yes. The tool recursively processes nested objects and arrays to any depth, producing XML elements that mirror the original JSON hierarchy.

What is the maximum JSON size I can convert?

The limit depends on your device memory since conversion runs in the browser. Most modern browsers handle files up to several megabytes.

Does the output include an XML declaration?

Optionally. Toggle the Include XML declaration option to prepend the standard XML header. Recommended when saving as a standalone.xml file.

Can I convert XML back to JSON?

Yes. Use the companion XML to JSON Converter for the reverse transformation, preserving attributes and nested structures.

How are XML attributes converted?

When 'Preserve attributes' is enabled, XML attributes are converted to JSON properties with an @ prefix. For example, <book category="fiction"> becomes { "@category": "fiction" }.

What happens with repeated elements?

Elements with the same name are automatically converted to JSON arrays. For example, multiple <item> elements become an items array.

Is the conversion reversible?

Generally yes, but some XML features like processing instructions or comments are not preserved. Use the JSON to XML tool for reverse conversion.

Run it from code

$ curl -X POST \
  api.findutils.com/api/tools/json-to-xml/execute \
  -d '{"json":"{\"a\":1}"}'

$ claude mcp add findutils \
  --transport http https://mcp.findutils.com/
# then call findutils:json_to_xml

API reference Add to Claude