XML Formatter Pro | Beautify & Validate XML Online

XML Formatter & Validator

Paste your XML below to format, validate, or minify it with proper syntax highlighting.

Input XML

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Formatted XML

Indent:

Powerful XML Features

Everything you need to work with XML documents efficiently

Smart Formatting

Automatically format your XML with proper indentation and line breaks. Choose between different indentation styles to match your coding standards.

Advanced Validation

Detect and highlight XML syntax errors with detailed error messages. Our validator checks for well-formedness and common XML issues.

Minification

Reduce XML file size by removing unnecessary whitespace and comments while preserving all data and structure.

File Handling

Upload XML files directly from your device or download formatted results. Works with large XML documents efficiently.

Fast Processing

Optimized algorithms handle large XML files quickly without compromising your browser performance.

Syntax Highlighting

Color-coded XML elements, attributes, and values make your documents easier to read and understand at a glance.

How to Use the XML Formatter

Simple steps to format and validate your XML documents

1

Paste or Upload XML

Copy and paste your XML code directly into the input editor or upload an XML file from your device.

2

Choose Options

Select your preferred indentation style (spaces or tabs) and click the appropriate action button.

3

Get Results

View your formatted XML, copy it to clipboard, or download it as a file. Validation results will show any errors.

Tips for Working with XML

Always ensure proper nesting

Make sure your XML is well-formed with properly nested tags and matching opening/closing tags.
Use our validator

Check for common issues like unescaped special characters or missing attributes with our validator.
Minify for production

For production environments, minify your XML to reduce file size and improve loading times.
Add comments

Consider adding XML comments () to document your structure for future maintenance.

XML Tips & Tutorials

Learn more about working with XML effectively

XML Best Practices

June 15, 2023 • 5 min read

Learn the industry standards for creating maintainable and efficient XML documents that work across platforms.

Common XML Errors

May 28, 2023 • 4 min read

Discover the most frequent XML validation errors and how to fix them quickly in your documents.

XML Performance Tips

April 10, 2023 • 6 min read

Optimize your XML processing with these techniques for faster parsing and reduced memory usage.

Frequently Asked Questions

Find answers to common questions about our XML Formatter

Is my XML data secure when using this tool?

Yes! All processing happens directly in your browser. Your XML never gets sent to our servers, ensuring complete privacy and security.

What's the maximum XML file size I can process?

The tool can handle very large XML documents (several MB), but extremely large files may impact browser performance. For best results, we recommend files under 5MB.

Does this tool support XML Schema validation?

Currently, we only validate for well-formed XML (syntax checking). Future versions may include XML Schema (XSD) and DTD validation support.

Can I format XML attributes in a specific order?

Our formatter maintains the original attribute order. For custom attribute sorting, you would need to pre-process your XML before formatting.

How do I report a bug or suggest a feature?

Please use our contact form to send us feedback. We appreciate all suggestions and bug reports to improve the tool.

Ready to Format Your XML?

Join thousands of developers who use our tool to work with XML more efficiently.

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