XML Minifier

XML Minifier is a tool that strips unnecessary whitespace, line breaks, indentation, and comments from XML documents, producing a compact single-line output that is functionally identical to the original. The result is a smaller file size that transfers faster over networks and takes up less storage — without changing the data or structure your application relies on.

For developers working with APIs, configuration files, SOAP services, or data pipelines, bloated XML can slow down parsing and increase bandwidth costs. Minifying XML is a standard step before deploying to production, embedding XML in code, or transmitting large payloads over HTTP. This tool makes that process instant and requires no installation or command-line setup.

To use the tool, paste your XML into the input field and click Minify. The tool parses the document and removes all non-significant whitespace — including spaces used purely for indentation, blank lines between tags, and inline XML comments (). The output is a condensed, single-line XML string ready to copy and use immediately.

The input should be well-formed XML. If your document contains syntax errors, the minifier may produce unexpected results or fail to process correctly — so it is good practice to validate your XML first before minifying. XML declarations () and CDATA sections are preserved, as their content is considered significant.

One edge case to be aware of: whitespace inside text nodes that carries semantic meaning — such as spaces between words in a text element — is preserved. Only whitespace that exists purely for human readability between tags is removed. This ensures the minified output remains semantically equivalent to the original document.