JSON to XML Converter

Free online JSON to XML converter and formatter

This online JSON to XML converter transforms JSON objects into well-formatted XML with a customizable root element and key-case options.

Quickly convert JSON to XML and format XML output in your browser with no server upload.

Input JSON
XML Output

What is JSON to XML Conversion?

JSON to XML conversion is the process of transforming data from JavaScript Object Notation (JSON) into Extensible Markup Language (XML). Both are structured text-based formats for representing data, but XML adds explicit element tags, attributes, and a strict hierarchical document structure. Converting JSON to XML lets modern JSON-first applications exchange data with XML-based systems such as SOAP web services, RSS/Atom feeds, and legacy enterprise pipelines.

Why Convert JSON to XML?

Many legacy systems, enterprise integrations, and industry-standard protocols still require XML input. Converting JSON to XML is essential when you need to talk to SOAP APIs, generate RSS/Atom feeds, produce XML configuration files, or feed XML-based reporting tools. A reliable converter saves hours of manual tag wrapping and guarantees well-formed output that downstream XML parsers can consume safely.

How to Convert JSON to XML Online (Step by Step)

Using our JSON to XML converter is straightforward:

  1. Paste or type your JSON into the Input editor, or click Sample to load an example.
  2. Choose a root element name and an optional key case transformation (camelCase, snake_case, PascalCase, kebab-case).
  3. Read the generated XML on the right and click Copy or Download to export it as a .xml file.

The conversion happens in real time as you type, with instant feedback on invalid JSON.

Why Choose Our JSON to XML Tool?

Our converter prioritizes speed, privacy, and developer ergonomics. Unlike many online tools, it runs entirely client-side: your JSON never leaves your browser. Features include real-time JSON validation, a customizable XML root element, key-case transformation, syntax-highlighted Monaco editors for both input and output, fullscreen mode, and one-click copy/download.

How JSON to XML Conversion Works

The converter walks your JSON tree and emits XML following a set of simple, predictable rules so that the output stays well-formed and round-trippable:

  • Root element: the whole JSON document is wrapped in a single XML root element whose name you control via the Root name field.
  • Objects: each JSON property becomes an XML child element named after the key.
  • Arrays: array items are emitted as repeated sibling elements sharing the same tag name, mirroring XML collection conventions.
  • Primitives: strings, numbers, and booleans become text content inside their element.
  • Null values: emitted as self-closing elements with xsi:nil="true".
  • Special characters:&, <, >, " and ' are escaped to keep the XML well-formed.

Features

  • Configurable root tag: set any XML root element name to match your schema.
  • Pretty-printed indentation: output is automatically formatted with consistent indentation for readability.
  • Key case transformation: convert all element names to camelCase, snake_case, PascalCase, or kebab-case on the fly.
  • Syntax-highlighted editors: Monaco-powered JSON and XML editors with error squiggles and code folding.
  • Copy & download: one-click clipboard copy or download the result as a .xml file.
  • Fullscreen mode: focus on a single editor when working with large payloads.

Common Use Cases

This JSON to XML converter is used every day by backend developers, integration engineers, and data analysts. Typical scenarios include:

  • Integrating with legacy SOAP APIs that only accept XML payloads.
  • Generating RSS and Atom feeds from JSON content sources.
  • Producing XML configuration files for enterprise applications.
  • Feeding XML-based reporting and ETL pipelines from JSON APIs.
  • Testing and prototyping cross-format integrations without writing code.

Is It Safe to Convert JSON Online?

Yes. All parsing and conversion runs entirely inside your browser using JavaScript. Your JSON is never uploaded to a server, logged, or stored. This client-side architecture makes the tool safe to use with sensitive or internal data while still delivering instant results.

There are no accounts, no ads, and no trackers injected into your payload - just a clean, fast JSON to XML conversion experience.

Why Choose DevTools?

DevTools is a distraction-free, developer-first suite of free online utilities. The JSON to XML converter is designed for speed, reliability, and accuracy, and is backed by the same client-side architecture used across the rest of our tools. Whether you convert one payload or thousands per day, you get consistent, professional output without ever sending data to a third party.

Download and Copy Options

After converting your JSON, you can copy the generated XML to your clipboard or download it as a .xml file with a single click. This makes it easy to share the output with teammates, commit it to a repository, or drop it into an XML-based pipeline.

The tool also integrates with the rest of the DevTools suite. From here you can jump to the XML Formatter to prettify or validate the result, return to the JSON Formatter to clean up the input, convert the same data into ENV variables, or explore it with the JSON Query Explorer.

FAQ

Is this JSON to XML converter free to use?

Yes, it is completely free with no registration, ads, or usage limits.

Do you store my JSON or XML data?

No. All conversion happens locally in your browser, so your data never touches our servers.

Can I customize the XML root element name?

Yes. Use the Root name field above the output editor to set any valid XML root element name.

How are JSON arrays converted to XML?

Each item in a JSON array becomes a repeated sibling XML element that shares the same tag name, which is the standard way to represent collections in XML.

How are null values handled?

JSON null values are emitted as self-closing XML elements with the xsi:nil="true" attribute.

Can I transform key names while converting?

Yes. Use the key case dropdown to convert all element names to camelCase, snake_case, PascalCase, or kebab-case while preserving the data structure.

Can I convert large JSON files?

Yes. The tool handles large JSON documents efficiently, limited only by your browser's available memory.

JSON & XML Learning Resources

To deepen your understanding of JSON, XML, and the tooling around them, here are trusted external references: