Free XML Minifier

How to Minify XML Online

Paste your XML into the left panel and the minified output appears instantly on the right. The minify toggle is on by default — just paste and go. You can switch to pretty-print mode using the indent selector or the Minify toggle button. You can also drag and drop an .xml file or use the upload button.

When to Minify XML

Minifying XML is useful when you need to reduce payload size for SOAP web services, compress RSS or Atom feeds, shrink Maven POM or Spring configuration files, or transmit XML over bandwidth-constrained connections. Minified XML is semantically identical to formatted XML — only insignificant whitespace is removed.

Frequently Asked Questions

What does an XML minifier do?

An XML minifier removes all unnecessary whitespace — indentation, extra spaces, and line breaks between tags — from your XML, producing the smallest possible output while keeping it valid and well-formed.

Is this XML minifier free?

Yes — completely free, forever. No sign-up, no account, no usage limits.

Is my data safe?

All minification happens locally in your browser using JavaScript. Your XML is never uploaded to any server. It's safe to use with SOAP messages, config files, and proprietary data.

Does minifying change my XML data?

No — minifying only removes insignificant whitespace between tags. All elements, attributes, text content, and structure remain exactly the same. The output is semantically identical to the input.

When should I minify XML?

Minify XML when you need to reduce file size for SOAP payloads, RSS feeds, Maven POMs, Spring configurations, or any XML transmitted over the network. Smaller XML means faster transfers and lower bandwidth costs.

Can I also format or pretty-print my XML?

Yes — use the XML Formatter to pretty-print your XML with configurable indentation.