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Convert text to Base64 and back, with full Unicode support.
XML Minifier
Strip whitespace and optionally comments from XML, and see the bytes saved.
Quick Tool Overview
The XML Minifier removes the indentation and line breaks between elements, optionally strips comments, and reports exactly how many bytes that saved. The parsed document is identical before and after.
- What it does
- Strips whitespace and optional comments from XML
- You give it
- A formatted XML document
- You get back
- The same document on one line, plus the saving
- Best for
- SOAP bodies, sitemaps, RSS feeds and bundled config
About the XML Minifier
Minifying XML removes the indentation and line breaks between elements, which on a pretty-printed document is often a third of the file. The elements, attributes and text content are untouched — the parsed result is identical.
It matters most for payloads that travel repeatedly: SOAP request bodies, sitemap files, RSS feeds and configuration bundled into an application. Comments can be stripped at the same time, which is usually safe for a machine-read document and is where the remaining savings are. The tool reports the size before and after so you can see whether it was worth it.
Key features of the XML Minifier
Content is never touched
Only whitespace between elements is removed. Text inside an element, which a parser treats as content, is preserved exactly.
Comments optional
Keep them for a document a person reads, or strip them for the smallest payload — usually the larger of the two savings.
The declaration stays
Version and encoding are kept on the first line, because some parsers insist on them.
The saving in numbers
Size before, size after and the percentage removed, so you can tell whether it was worth doing.
Validation comes free
A document that will not minify is a document that will not parse, and the error names the line.
How to use the XML Minifier
-
1
Paste your XML
Any formatted XML document.
-
2
Decide about comments
Keep them for a document humans read, or strip them for the smallest payload.
-
3
Check the saving
The stat row shows the size before, after and the percentage removed.
-
4
Copy or download
Take the minified document or save it as an .xml file.
Frequently asked questions
Text inside an element is preserved exactly, so content is safe. Only whitespace that sits between elements — which no XML parser treats as content — is removed.
Yes. It carries the version and encoding, which some parsers require, so it stays on the first line.
A four-space indented document with deep nesting can lose 30 to 40 per cent. Something already compact may lose almost nothing.
The gain is smaller, since gzip compresses repeated indentation very well, but minifying still cuts the bytes a parser has to walk and the memory the document occupies.
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