JSON to XML Converter

Q: How do I map JSON properties to XML attributes?

Prefix your JSON key with an @ character (e.g. "@id": "12" inside a "user" object). The converter will write this as an attribute (e.g. ) instead of a tag.

Q: How does it represent JSON null values in XML?

JSON null values are converted to empty XML elements (e.g. or ).

Convert JSON arrays or nested key-value objects back to clean, formatted XML element tags instantly.

JSON Input

Root Tag:

Auto-convert

XML Output

<?xml version="1.0" encoding="UTF-8"?>
<catalog id="1">
  <book id="bk101">
    <author>Gambardella, Matthew</author>
    <title>XML Developer&apos;s Guide</title>
    <genre>Computer</genre>
    <price>44.95</price>
    <publish_date>2000-10-01</publish_date>
    <description>An in-depth look at creating applications with XML.</description>
  </book>
  <book id="bk102">
    <author>Ralls, Kim</author>
    <title>Midnight Rain</title>
    <genre>Fantasy</genre>
    <price>5.95</price>
    <publish_date>2000-12-16</publish_date>
    <description>A former journalist finds she has supernatural powers.</description>
  </book>
</catalog>

XML Compiled

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Learn About This Tool

Understanding JSON to XML element serialization rules

JSON uses nested key-value objects and indexed arrays to represent data, whereas XML uses structured tags nested under a single root element wrapper. Our converter serializes JSON keys into XML tags, array indices into repeated sibling tags, and properties starting with @ into tag attributes. If you need to parse XML schemas back to JSON objects, use our XML to JSON Converter. Here is a standard translation sample:

// JSON Input
{
  "project": {
    "@id": "100",
    "name": "ToolMight",
    "categories": ["Utility", "Developer"]
  }
}

<!-- Converted XML Output -->
<root>
  <project id="100">
    <name>ToolMight</name>
    <categories>Utility</categories>
    <categories>Developer</categories>
  </project>
</root>

Converts JSON object keys directly into custom XML element tag boundaries
Translates array items into repeated sibling tags matching the array key name
Converts properties prefixed with '@' into tag attributes (e.g. id, class, active)
Protects credentials by processing all structures locally in your browser memory

Configuring custom root elements and tags formatting

Unlike JSON (which allows multiple top-level keys), XML requires all elements to be wrapped in a single root element. Our tool provides a customizable **Root Tag** input field (defaulting to <root>) so you can structure the output to fit your specific XML schema. If you are formatting your input JSON before converting it, run it through our JSON Formatter & Validator.

Allows customizing the root wrapper element tag name easily
Ensures the generated XML is well-formed with matching closing tags
Outputs properly indented elements for clear human readability
Strips invalid tag characters automatically to prevent parsing issues

Why security-first client-side parsing matters

Exporting API configurations or database seed payloads containing secret keys, IDs, or usernames to online sites is highly insecure. Our tool compiles all tags locally in JavaScript. No files or values are uploaded, keeping your data confidential. If you are converting database table formats, try our JSON to CSV Converter.

Guarantees that no configuration text ever leaves your local workspace
Zero network data payloads are transmitted to external services
Prevents database schema configurations from being cached in search logs
Runs with high-performance browser-native compilation speeds

How to Use JSON to XML Converter

Paste your raw JSON array or object

Paste your JSON text into the JSON Input editor on the left. The tool automatically validates and pretty prints the source.

Configure your XML root element

Use the Root Tag input field in the toolbar to specify the parent wrapper element tag name (e.g. 'root' or 'catalog').

Copy or download the compiled XML

Review the formatted XML output on the right. Click Copy to grab it or Download to save it locally as a .xml file.

Common questions

How do I convert JSON to XML online?

Paste your JSON data into the input panel of our secure, client-side JSON to XML converter. The tool serializes the keys instantly, allowing you to download the output as a .xml file. If you need to convert XML files back to JSON, use our XML to JSON Converter.

Is this JSON to XML converter secure for database payloads?

Yes, 100%. The conversion runs completely in your local browser sandbox using client-side JavaScript. No data is sent to external servers, protecting your secrets, passwords, and private schemas.

Why does XML require a root element tag?

Unlike JSON, which can have multiple top-level keys, XML specifications require all elements to be nested under a single parent element. We provide a custom text field to define this tag name.

How do I map JSON properties to XML attributes?

Prefix your JSON key with an @ character (e.g. "@id": "12" inside a "user" object). The converter will write this as an attribute (e.g. <user id="12">) instead of a tag.

How are JSON arrays converted to XML tags?

JSON arrays are converted by repeating the tag name for each item. For example, "categories": ["A", "B"] maps to <categories>A</categories><categories>B</categories>.

Does it validate JSON syntax before converting?

Yes. If your JSON is malformed, the validator will display a clear error banner showing the line number and the syntax issue.

What is the maximum JSON size limit for conversions?

Since parsing occurs in-browser, it is only limited by your device's memory. The tool easily serializes objects exceeding 10,000 lines instantly.

Does this tool support formatting indentation?

Yes, the generated XML is formatted with proper indentation spaces for each level, matching the standard GFM code formats.

Can I load an example JSON to test?

Yes. Click the 'Example' option in the input toolbar to load a standard server configuration example containing nested children and attributes.

How does it represent JSON null values in XML?

JSON null values are converted to empty XML elements (e.g. <key /> or <key></key>).

Does it escape special XML characters?

Yes, special HTML/XML characters (such as &, <, and >) are escaped to &, <, and > to keep the file valid.

Can I copy the output XML instantly?

Yes. Click the Copy button in the XML Output header, or use standard browser shortcuts to copy the compiled text instantly to your clipboard.

Does it require internet access to work?

No. Once the page is loaded, the converter works 100% offline, making it highly secure and reliable for offline development.

How does the tool handle boolean values?

Boolean values (true and false) are serialized as string text nodes ("true" and "false") inside the tags.

Why did my conversion fail with 'JSON is not an object'?

This error occurs if your JSON is malformed or invalid. Ensure you paste a standard object {...} or array [...] to format.

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