Free XML Formatter Online
Format, validate, and beautify XML documents with our free online XML Formatter. Transform messy or minified XML into clean, properly indented markup that is easy to read and debug. The tool validates your XML against proper syntax rules and highlights any parsing errors. You can also minify XML to reduce file size for data transfer and storage. Choose your preferred indentation size for consistent formatting across your project. All processing happens in your browser using the native DOMParser — your data stays completely private. Perfect for developers working with API responses, configuration files, data feeds, SOAP messages, and any XML-based data format.
How to Use XML Formatter
Paste Your XML
Copy and paste your XML content into the input area. Works with any XML document or fragment.
Format or Minify
Click Format/Validate to beautify and check syntax, or Minify to compress the XML.
Copy the Result
Review the formatted output with validation status, then copy to clipboard.
Features
XML Validation
Validates XML syntax using the browser's native DOMParser and reports any parsing errors.
Smart Formatting
Applies proper indentation to nested elements while preserving text content and attributes.
XML Minification
Removes all whitespace, comments, and formatting for compact data transfer.
Error Reporting
Highlights XML syntax errors with clear error messages to help fix malformed documents.
Benefits of Using XML Formatter
Completely Free
Use XML Formatter without any cost, limits, or hidden fees. No premium plans needed.
No Installation
Works directly in your browser. No software downloads or plugins required.
100% Private
Your files and data are processed locally. Nothing is uploaded to external servers.
Works Everywhere
Compatible with Chrome, Firefox, Safari, Edge on desktop, tablet, and mobile.
No Sign-Up
Start using the tool immediately. No account creation or email verification.
Always Available
Access this tool 24/7 from anywhere in the world, on any device.
Frequently Asked Questions
Complete Your Developer Tools Workflow
These free tools work seamlessly with XML Formatter to handle every step of your workflow.