XML Minifier

Or enter XML manually below
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How XML Minifier Works?

What does XML minification do?

XML minification removes all unnecessary whitespace, line breaks, comments and indentation from XML data while keeping it valid. This reduces file size for faster transmission. For example, this formatted XML:

<tool>
    <title>XML Minifier</title>
    <category>utility</category>
    <active>true</active>
</tool>

becomes:

<tool><title>XML Minifier</title><category>utility</category><active>true</active></tool>

Why should I minify XML?

Minifying XML provides several benefits:

  • Reduced file size: Smaller payloads mean faster downloads
  • Lower bandwidth: Less data transferred over the network
  • Faster parsing: Fewer characters for parsers to process
  • API optimization: Ideal for SOAP and XML-based API responses

How much space does minification save?

The space savings depend on how much whitespace is in your original XML. Typically, you can expect:

  • 10-30% reduction for lightly formatted XML
  • 30-50% reduction for heavily indented XML
  • 50%+ reduction for XML with lots of nesting

What happens if my XML is invalid?

If your XML has syntax errors, the minifier will display an error message with details about the issue. Common XML errors include:

  • Missing or mismatched closing tags
  • Unescaped special characters (&, <, >)
  • Invalid attribute syntax
  • Multiple root elements

Does minification change my data?

No. Minification only removes whitespace and formatting between tags. Your actual data: elements, attributes, text content, and CDATA sections remain exactly the same. The minified XML is semantically identical to the original.

Does this tool preserve XML declarations?

Yes! XML declarations (<?xml version="1.0" encoding="UTF-8"?>) are preserved in the minified output. They are essential for proper XML parsing.

Does this tool work with nested XML?

Yes! The minifier handles any level of nesting. All nested elements are properly minified while maintaining valid XML structure.

<toolset><name>ConvertChief</name><categories><category><name>Converters</name><tools><tool>JSON to XML</tool><tool>XML to JSON</tool></tools></category></categories></toolset>

Are comments removed?

Yes. XML comments (<!-- comment -->) are removed during minification.

Can I format minified XML?

Yes! If you have minified XML and want to make it readable again, use our XML Formatter tool to add proper indentation and line breaks.