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XML Formatter & Validator

Format, validate, and beautify XML documents with customizable indentation and processing options

XML Input

Formatted XML Valid

About XML Formatter & Validator

Format, validate, and beautify XML documents with customizable indentation, whitespace control, and attribute sorting.

Key Features

  • XML Validation: Real-time validation with error detection
  • Custom Indentation: Choose spaces or tabs with configurable size
  • Minification: Remove comments and whitespace for compact XML
  • Attribute Sorting: Sort attributes alphabetically
  • Comment Removal: Strip XML comments
  • Whitespace Control: Remove unnecessary whitespace
  • File Upload: Upload .xml files directly
  • Copy & Download: Easy export of formatted XML

How to Use

  1. Input XML: Paste your XML or upload an .xml file
  2. Configure Options: Choose indentation type, size, and processing options
  3. Review Output: The formatted XML generates automatically
  4. Check Validation: See if your XML is valid (green badge) or has errors (red badge)
  5. Copy or Download: Use the Copy or Download button to save your formatted XML

Formatting Options

  • Indent Type: Choose between spaces or tabs
  • Indent Size: Set the number of spaces (1-8) for indentation
  • Remove Comments: Strip all XML comments from the output
  • Remove Whitespace: Eliminate unnecessary whitespace between tags
  • Sort Attributes: Alphabetically sort element attributes

Example Formatting

Unformatted XML:

<?xml version="1.0"?><catalog><book id="bk101"><author>John Doe</author><title>XML Guide</title><price>29.99</price></book></catalog>

Formatted XML (2 spaces):

<?xml version="1.0"?>
<catalog>
  <book id="bk101">
    <author>John Doe</author>
    <title>XML Guide</title>
    <price>29.99</price>
  </book>
</catalog>

Common Use Cases

  • Code Formatting: Beautify minified or poorly formatted XML
  • Validation: Check XML syntax and structure
  • Minification: Reduce file size for production
  • Standardization: Enforce consistent formatting across projects
  • Debugging: Make XML readable for troubleshooting
  • Documentation: Prepare XML for documentation or examples

Validation Features

The validator checks for:

  • Well-Formedness: Proper tag nesting and closing
  • Syntax Errors: Invalid characters or structure
  • Declaration: Proper XML declaration format
  • Encoding: Character encoding issues

Minification

The Minify button automatically:

  • Removes all XML comments
  • Eliminates extra whitespace between tags
  • Reduces file size for production use
  • Maintains XML validity

Privacy & Security

All formatting and validation happen locally in your browser. Your XML data is never uploaded to any server, ensuring complete privacy and security.