JSON to XML Converter

This JSON to XML converter transforms JSON objects and arrays into clean, well-formatted XML right in your browser. Paste your JSON on the left and the XML output appears instantly on the right, with full control over the root element, array item names, indentation, and the XML declaration header.

It is built for developers and analysts who need to move data between systems that speak different formats. Whether you are feeding a JSON API response into an XML-based service, preparing a SOAP payload, or migrating data into a legacy system, the converter handles nested objects, arrays, and primitive values and produces valid XML you can copy or download.

Private by design: every conversion runs in your browser. Your JSON is never uploaded to a server, and nothing you paste, upload, or convert is stored or tracked.

How to Use the JSON to XML Converter

Add your JSON

Paste or type your JSON into the left panel, or use the Upload File button to load a .json file from your device. Click Sample Data to drop in an example and see how it works.

See the XML instantly

The XML output appears automatically in the right panel as you type, with a short delay to avoid unnecessary processing. The status bar shows whether your input is Valid or Invalid.

Customize the output

Set the Root element name and the array Item name, choose 2-space, 4-space, or tab Indent, and toggle the XML Declaration header on or off. Every change re-converts instantly.

Copy or download

Use Copy to send the XML to your clipboard, or Download to save it as an XML file. The status bar also reports the element count and output file size.

Features

Real-Time Conversion

JSON is converted to XML as you type. Editing the root name, item name, indentation, or declaration triggers an instant re-conversion.

Custom Root & Item Names

Set the outermost root element and the element used for array items so the XML matches your schema. Defaults are root and item.

Indentation Control

Choose 2 spaces, 4 spaces, or tab indentation to match your preferred XML formatting style.

XML Declaration Toggle

Optionally include the standard <?xml version="1.0" encoding="UTF-8"?> header at the top of the output.

Nested Structure Handling

Objects become parent elements, arrays wrap each entry in the item element, and primitives become text. Null and empty objects render as self-closing tags.

Automatic Tag Sanitizing

Invalid characters in JSON keys are replaced with underscores, and keys starting with a number are prefixed, so every tag is valid XML.

Upload JSON Files

Load a JSON file straight from your device and convert it on the spot, no copy-paste required.

Download & Copy

Save the result as an XML file or copy it to your clipboard with one click.

JSON Validation

Invalid JSON is flagged instantly with a clear error message, so you can fix the input before converting.

Element Count & Size

The status bar reports the validation state, total element count, and output file size at a glance.

Frequently Asked Questions

How do I convert JSON to XML?

Paste or type your JSON into the left panel, or upload a .json file. The XML output appears automatically on the right. Adjust the root name, item name, indentation, or declaration to fine-tune the result, then copy or download it.

Is the conversion done in my browser, and is my data safe?

Yes. All parsing and conversion happen locally in your browser. Your JSON is never uploaded to a server, nothing is stored, and no input is tracked, so even sensitive data stays private.

How are JSON arrays converted to XML elements?

An array is wrapped in its parent element, and each entry is enclosed in the configured item element. For example, {"colors": ["red", "blue"]} becomes <colors><item>red</item><item>blue</item></colors>. Change the Item name to rename those wrapper tags.

Why do numbers and booleans become text in XML?

XML has no built-in number or boolean types — every value is text inside an element. Strings, numbers, and booleans all become the text content of their tag, while special characters such as &, <, >, ", and ' are automatically escaped so the output stays valid.

What happens to special characters in JSON keys?

Keys that contain characters invalid for XML tag names, such as spaces or symbols, are sanitized automatically. Invalid characters are replaced with underscores, and a key that starts with a number is prefixed with an underscore so the resulting tag is always valid.

Can I upload a JSON file and download the converted XML?

Yes. Use Upload File to load a JSON file from your device, and it converts on the spot. When you are happy with the result, use Download to save it as an XML file or Copy to put it on your clipboard.

Is there a size limit?

There is no fixed cap. Because everything runs locally, the practical limit depends on your device's memory. The converter handles large JSON files efficiently, though extremely large datasets may convert more slowly. Note that a single primitive value is not accepted — the input must be a JSON object or array.