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XML Formatter/Validator

Format, validate, and minify XML documents with namespace analysis and error detection

Processing Mode
Input XML
Paste your XML data or upload a file
Formatted XML
Pretty-printed with proper indentation
How to Use

Format Mode

Pretty-prints XML with proper indentation and line breaks for better readability and debugging.

Minify Mode

Removes all unnecessary whitespace to reduce file size for production or transmission.

Validate Mode

Checks XML syntax and structure, highlighting errors with precise location information.

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How to Use Free Online XML Formatter and Validator Tool

Our free online XML formatter provides instant XML formatting, validation, and minification capabilities right in your browser. Simply paste your XML data, choose your processing mode, and get immediate results. No signup required, completely secure, and works offline.

Key Features

  • Instant XML formatting with proper indentation and structure
  • Complete XML validation with detailed error messages
  • XML minification for reduced file sizes
  • Namespace analysis and detection
  • Element and attribute counting statistics
  • File upload support for large XML documents
  • One-click copy results to clipboard
  • Download formatted or minified XML files
  • Real-time processing as you type
  • Completely secure - all processing happens in your browser
  • No signup or registration required
  • Works offline after loading

Why Use This XML Tool?

Perfect for developers, data analysts, and API integrators who work with XML data. Save time debugging XML files with our comprehensive formatting and validation features. Whether you're working with configuration files, API responses, or data exchanges, our tool helps you quickly identify issues and improve readability.

Frequently Asked Questions

Is this XML formatter free to use?

Yes, our XML formatter is completely free with no limitations, signup requirements, or hidden costs.

Is my XML data secure?

Absolutely. All XML processing happens locally in your browser using DOMParser API. No data is sent to servers.

What XML formats are supported?

We support all standard XML formats including configuration files, SOAP responses, RSS feeds, and custom XML schemas.

Does it work offline?

Yes, once the page loads, the XML formatter works completely offline without internet connection.

Can I process large XML files?

Yes, our tool can handle XML files up to several megabytes. For very large files, use the file upload feature.

What about XML namespaces?

Our tool fully supports XML namespaces and provides detailed analysis of namespace declarations and usage.