XML to JSON Converter

Why convert XML to JSON

XML remains common in enterprise systems, SOAP APIs, RSS feeds, and legacy configuration files, but most modern tooling, from JavaScript front-ends to REST clients, speaks JSON natively. This converter reads XML markup in your browser and rebuilds it as an equivalent JSON object, preserving element nesting, repeated elements as arrays, and attributes under a dedicated key so nothing about the original structure is lost in translation.

How elements and attributes are represented

Each XML element becomes a JSON key. If an element has attributes, they are collected under an @attributes object so they remain distinguishable from child elements with the same names. When an element contains only text and no children, that text becomes the value directly; when it contains both text and child elements, the text is placed under a #text key alongside the children, matching a widely used and predictable XML-to-JSON convention.

Repeated elements become arrays

A common XML pattern is a list of sibling elements sharing the same tag name, such as multiple <item> elements inside a <items> parent. The converter automatically detects when a tag name repeats at the same level and groups those values into a JSON array instead of overwriting one with another, so list-like data from RSS feeds, product catalogues, or API responses survives the conversion intact.

Where you'll use this

Front-end developers use this tool to quickly inspect the shape of an XML API response before writing a parser for it. Data engineers use it to prototype a transformation pipeline from legacy XML exports into a JSON-based data warehouse. Because parsing happens with the browser's built-in DOMParser, malformed XML is caught immediately and reported clearly rather than silently producing wrong output.

A note on namespaces and mixed content

XML namespaces (like ns:element) are preserved as literal key names in the JSON output rather than being resolved, since JSON has no native namespace concept. Deeply mixed content, where text and elements interleave repeatedly inside one tag, is a rare pattern in most real-world documents but is represented as accurately as the JSON format allows.

Step-by-step walkthrough

Drop your .xml file onto the input panel or paste the markup directly, then click Convert. The tool immediately reports whether the XML parsed successfully or, if something is malformed, gives you a clear error rather than partial or silently wrong output. Review the resulting JSON in the output box to confirm the nesting and array handling match what you expected, then use Download Result to save it as a standalone .json file for use elsewhere in your project.

Privacy and performance

Because the xml to json 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