JSON - XML Converter
Convert between JSON and XML formats instantly. Runs entirely in your browser.
What Is JSON to XML Conversion and Why Do Developers Need It?
JSON (JavaScript Object Notation) and XML (eXtensible Markup Language) are the two most widely used data interchange formats. While JSON dominates modern web APIs and JavaScript applications, XML remains critical in enterprise systems, SOAP APIs, Android layouts, RSS feeds, SVG graphics, and configuration files like Maven's pom.xml and .NET's Web.config.
Key Features of This Free JSON → XML Converter
- Bidirectional conversion — Convert JSON to XML or XML to JSON with a single click
- Proper XML generation — Creates well-formed XML with correct nesting, indentation, and a root element
- Attribute handling — XML attributes are mapped to
@attributekeys in JSON - Array support — JSON arrays are converted to repeated XML elements; repeated XML siblings become JSON arrays
- Syntax validation — Instant error detection for both invalid JSON and malformed XML
- File upload support — Upload
.jsonor.xmlfiles for instant conversion
Common Use Cases
- API migration — Converting REST JSON APIs to SOAP XML format or vice versa
- Configuration files — Translating between JSON config (package.json) and XML config (pom.xml, Web.config)
- Data exchange — Converting between systems that use different formats
- RSS and Atom feeds — Parsing XML feeds into JSON for JavaScript applications
- Legacy system integration — Bridging modern JSON APIs with legacy XML-based enterprise systems
JSON vs XML: When to Use Which
| Feature | JSON | XML |
|---|---|---|
| Readability | More compact, easier to read | Verbose, self-documenting with tags |
| Data Types | String, Number, Boolean, Array, Object, null | Everything is text (needs schema for types) |
| Attributes | No native support | Supports attributes on elements |
| Comments | Not supported | Supported () |
| Namespaces | Not supported | Full namespace support |
| Best For | Web APIs, config, NoSQL | Enterprise, SOAP, RSS, SVG, HTML |
Frequently Asked Questions
JSON arrays are converted to repeated XML elements with the same tag name. For example, {"items": [1, 2, 3]} becomes multiple <items> elements. The converter uses the parent key name as the element name for each array item.
No. All conversion runs entirely in your browser using JavaScript. Your JSON and XML data never leaves your device, making this tool safe for proprietary API payloads, configuration files, and sensitive data.
Yes, this tool supports bidirectional conversion. Paste XML and convert it to JSON. Note that XML attributes are typically mapped as properties prefixed with "@" and text content may appear under a "#text" key, depending on the XML structure.
When converting XML to JSON, attributes are preserved using a naming convention (commonly prefixed with "@"). XML namespaces are included in element names. When converting JSON to XML, the tool generates well-formed XML but does not add namespace declarations unless present in the input.
JSON is ideal for REST APIs, web applications, and configuration files due to its lightweight syntax. XML is better for enterprise systems, SOAP services, document markup, and scenarios requiring schemas, namespaces, or mixed content. Use this converter when integrating systems that use different formats.