XML Beautifier Guide

What does this tool do

The XML Beautifier formats, validates, and minifies XML. Paste XML and choose indentation (2 or 4 spaces, tabs) to get readable output. Invalid XML shows an inline error. Valid XML displays a collapsible tree view. Minify removes extra whitespace. Copy the result with one click.

How to use it

1. Paste XML — Paste your XML string into the input area.
2. Format — Click Format or adjust indentation. The output updates.
3. Validate — Invalid XML shows an error; valid XML shows the tree view.
4. Minify — Click Minify to remove unnecessary whitespace.
5. Copy — Copy the formatted or minified output to the clipboard.

How it works

The tool parses the input with the browser's DOMParser. If parsing fails, it displays the error. If valid, it reformats with the chosen indentation (pretty-print) or minifies by removing whitespace between tags. The tree view is built from the parsed document for easier navigation. All processing runs client-side.

All computation runs entirely in your browser. No data is sent to any server.

Use cases & examples

• Config files — Format XML config for readability.
• SOAP/XML APIs — Beautify responses for debugging.
• SVG — Format SVG markup for editing.
• Documentation — Produce clean XML samples.
• Bundling — Minify XML for smaller payloads.

Example

Input: <root><item>a</item><item>b</item></root>
Formatted (2 spaces):

<root>
  <item>a</item>
  <item>b</item>
</root>

Limitations & known constraints

• XML only — Does not support HTML5 or invalid XML.
• Large files — Very large XML may slow the tree view.
• No schema — Validates well-formedness only; does not validate against DTD or XSD.