Free Online XML Formatter – Beautify and Validate XML
Format, pretty-print, and validate XML with proper indentation and syntax highlighting.
Hey there! Minified or messy XML is difficult to read and debug. Our free XML Formatter instantly cleans it up by adding consistent indentation, line breaks, and beautiful syntax highlighting. It also validates your XML and shows clear error messages if something is wrong.
Everything runs in your browser — 100% private, fast, and no data is sent anywhere.
Why Format Your XML?
Well-formatted XML makes it much easier to:
- Read and understand complex structures
- Debug and fix errors quickly
- Work with configuration files, APIs, or data feeds
- Review code in team projects or documentation
What This XML Formatter Does
- Adds proper indentation (2 spaces, 4 spaces, or tab)
- Validates XML structure and shows precise error messages
- Provides rich syntax highlighting for tags, attributes, values, comments, and CDATA
- Supports all common XML formats (SVG, RSS, SOAP, Android manifests, etc.)
- Includes a one-click Minify option for compact output
- Shows useful stats (elements, lines, size)
How to Format XML in 3 Simple Steps
- Paste your XML code into the input box.
- Choose your preferred indentation style.
- Click “Format XML” — clean, readable XML appears instantly on the right.
Key Features
- Real-time formatting as you type
- Built-in XML validation with helpful error messages
- Beautiful color-coded syntax highlighting
- One-click Minify button for production-ready XML
- One-click copy and download as .xml file
- Sample button with a realistic XML example
- 100% browser-based and completely private
Real Example
Before (Minified XML):
<?xml version="1.0"?><root><book id="1"><title>XML Guide</title><author>John Doe</author></book></root>
After (Formatted XML):
<?xml version="1.0"?>
<root>
<book id="1">
<title>XML Guide</title>
<author>John Doe</author>
</book>
</root>
Pro Tips
- Use 2 spaces for most projects (most common standard)
- If you see an error message, the tool will point to the exact problem
- Use the Minify button when you need compact XML for production
- Great for cleaning up API responses, config files, or exported data
Why Developers Love This XML Formatter
- Forever free with no limits or ads
- Fast formatting with built-in validation
- Clear, color-coded output
- Works smoothly on desktop and mobile
- 100% private — your XML never leaves your browser
Ready to Beautify Your XML?
Stop struggling with messy or minified XML. Make it clean, readable, and professional in seconds.
→ Format Your XML Now – Free & Instant