JSON to XML Converter

Why convert JSON to XML

Some systems, particularly older enterprise software, SOAP web services, and certain configuration formats, still require XML input even though the data you're working with started life as JSON. This tool walks a JSON value and wraps each key in a matching XML element, so you can hand a legacy system the format it expects without manually retyping the structure.

How arrays and nested objects are handled

When a JSON key holds an array, the converter repeats that element once per array item rather than creating a single element containing a JSON-looking list, which keeps the output valid, idiomatic XML. Nested objects become nested elements, indented for readability, and primitive values such as strings, numbers, and booleans become the text content of their corresponding element, with special XML characters like & and < safely escaped.

Choosing a root element name

JSON doesn't require a single named root the way XML does, so the tool lets you specify what the outermost wrapping element should be called, defaulting to root if you don't set one. Picking a meaningful name, such as catalog or response, makes the resulting file easier to read and matches the conventions of whatever system will consume it.

Typical scenarios

Integration developers use this converter when a partner API only accepts XML payloads but their own application logic works in JSON internally. QA engineers use it to quickly build sample XML test fixtures from JSON data they already have on hand, without hand-writing angle brackets. Because everything runs client-side, it's also handy for one-off conversions of sensitive configuration data that shouldn't be pasted into an external web service.

Limitations to keep in mind

JSON attributes have no direct XML equivalent in this straightforward mapping, so every JSON key becomes a child element rather than an XML attribute. If the system you're feeding requires specific elements to be represented as attributes, you may need to adjust the output afterward, but for straightforward data interchange the generated XML is well-formed and ready to use as-is.

Step-by-step walkthrough

Paste your JSON into the input box or upload a .json file, choose a root element name that makes sense for your data such as catalog or response, and click Convert. The generated XML appears immediately in the output panel with consistent two-space indentation, making it easy to scan for correctness before you commit to using it. Click Download Result to save the file, or copy the text directly into whichever system or script needs the XML payload.

Privacy and performance

Because the json to xml converter runs as JavaScript inside your own browser tab rather than on a remote server, there's no upload step, no waiting on a network connection, and no copy of your file sitting on someone else's infrastructure afterward. That also means it keeps working exactly the same whether your file is a few bytes or several megabytes, limited only by your own device's memory rather than a server's queue or rate limit. If you ever want to double-check that nothing is being transmitted, your browser's built-in developer tools network tab will show no outgoing request for the file's contents at any point during conversion. This also means the tool keeps working offline once the page has loaded, and closing the tab afterward leaves no copy behind on any server, since one was never made in the first place. That's a meaningful difference from typical online converters, which usually require uploading your file to a remote service before you ever see a result.

Frequently Asked Questions