XML Formatter & Validator

What is it?

The XML Formatter is a developer utility that parses minified, unreadable XML (Extensible Markup Language) strings and applies hierarchical indentation and syntax highlighting.

When should you use it?

XML is the backbone of legacy enterprise systems, SOAP APIs, RSS feeds, and configuration files (like Maven pom.xml). You should use this tool when debugging these systems to make the payload human-readable.

How does it work?

The tool uses the browser’s native DOMParser to parse the XML string into a local document object. It then walks the DOM tree, inserting line breaks and tabs to structure the output before applying CodeMirror syntax highlighting.

Example Input

<user><id>1</id><name>Alice</name></user>

Example Output

<user>
  <id>1</id>
  <name>Alice</name>
</user>

How to Use This Tool

1. Paste your unformatted or minified XML string into the editor.
2. The tool instantly parses the DOM and applies proper indentation and syntax highlighting.
3. Copy the beautified XML for easier reading or debugging.

Why use this offline formatter?

XML payloads often carry enterprise data, SOAP requests, or configuration files. This local formatter guarantees that your proprietary enterprise structures are never transmitted to a third-party server.