XML Formatter: Format, Validate & Minify XML Online | Free Tool
0 usesIndent:
XML Formatting Tips
Pretty Print XML Instantly
Paste any XML code and click Format to get properly indented, readable XML with your preferred indentation style.
Validate XML Syntax
Our XML validator catches missing closing tags, mismatched elements, and other common XML errors before they cause problems.
Minify XML for Production
Remove all unnecessary whitespace and line breaks to reduce XML file size for faster API responses and data transfer.
Custom Indentation Options
Choose between 2 spaces, 4 spaces, or tabs to match your team's coding style and project conventions.
Frequently Asked Questions
How do I format XML code online?
Paste your XML into the input area, select your preferred indentation (2 spaces, 4 spaces, or tabs), and click Format. The formatted XML appears instantly in the output area.
How can I validate XML syntax?
Click the Validate button to check your XML for syntax errors like missing closing tags, mismatched elements, or invalid characters. Errors are displayed with descriptions.
What is XML minification?
XML minification removes all unnecessary whitespace, line breaks, and indentation from XML code, reducing file size for production use and faster data transmission.
Is my XML data secure?
Yes. All formatting happens in your browser using JavaScript. Your XML data is never sent to any server.
Can I format large XML files?
Yes, our formatter handles large XML files efficiently. For extremely large files (50MB+), consider using a desktop tool for better performance.
How does pretty printing XML help me debug syntax errors?
Pretty printing XML significantly enhances readability by applying consistent indentation and line breaks, making the underlying structure clear. This visual organization helps you quickly spot missing tags, unclosed elements, or incorrect nesting that might be hidden in messy, unformatted code. Once your XML is clearly structured, our validator can then pinpoint exact syntax errors with precise descriptions, streamlining the debugging process.
How to Use the XML Formatter
- Paste your XML code into the input area
- Select indentation: 2 spaces, 4 spaces, or tabs
- Click Format for pretty printing, Compress to minify, or Validate to check syntax
- Copy the result with one click