Converters

XML Formatter / Beautifier

Format and beautify XML documents with syntax highlighting, proper indentation, and tree structure visualization. Minify mode for production.

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XML Input 1 lines · 316 chars

Formatted

<?xml version="1.0" encoding="UTF-8"?>
<catalog>
  <book id="1">
    <title>The Great Gatsby</title>
    <author>F. Scott Fitzgerald</author>
    <year>1925</year>
    <price currency="USD">10.99</price>
  </book>
  <book id="2">
    <title>1984</title>
    <author>George Orwell</author>
    <year>1949</year>
    <price currency="USD">8.99</price>
  </book>
</catalog>

All formatting runs entirely in your browser. Your XML is never sent anywhere.

XML remains the backbone of enterprise data exchange — from SOAP APIs and RSS feeds to configuration files, sitemaps, and document formats like SVG and DOCX. But raw XML is notoriously hard to read when collapsed into a single line or generated by machines without formatting. Our free XML Formatter and Beautifier instantly transforms any XML into clean, properly indented, syntax-highlighted code. Tags, attributes, and values receive distinct coloring for rapid visual parsing. Switch to minify mode to compress XML for production, or beautify to debug complex nested structures. All processing happens in your browser using a custom tokenizer — no data leaves your device.

How to Use

Paste your XML — Enter any XML document in the left panel. Supports declarations, comments, CDATA sections, self-closing tags, and nested elements.
Choose Beautify or Minify — Beautify for readable, indented XML with syntax highlighting, or Minify to compress into the smallest form.
Copy or download — Copy the formatted output to clipboard or download as an .xml file.

Key Features

Syntax Highlighting
Tags, attributes, values, and comments rendered in distinct colors for instant visual structure recognition.
Proper Indentation
Nested elements automatically indented with 2-space tabs. Self-closing tags handled correctly.
Beautify & Minify
Toggle between readable formatted XML and compressed production output in one click.
Declaration & CDATA Support
XML declarations, comments, and CDATA sections are correctly parsed and preserved.
Real-Time Formatting
Every keystroke re-tokenizes and reformats the XML — no submit buttons needed.
100% Client-Side
All parsing and formatting runs in your browser — no uploads, no tracking.

Frequently Asked Questions

What's the difference between XML and HTML formatting?

While both use angle-bracket syntax, XML is stricter — all tags must close, attributes must be quoted, and case matters. XML also supports self-closing tags (<tag />), CDATA sections, and processing instructions. Our XML formatter handles all these constructs specifically, while the HTML formatter is optimized for the more lenient HTML5 syntax including void elements.

Can I format very large XML files?

Yes, but performance depends on your browser and device. Since all tokenization happens client-side, files under ~10 MB format smoothly. For very large XML datasets (100 MB+), consider using a desktop XML tool or streaming parser.