XML Minifier — Compress XML Data Online

Strip whitespace and comments from XML documents to minimise payload size for storage or transmission. Maintains all tag names, attributes, and data integrity.

Key Features

Removes whitespace between adjacent tags and indentation spaces
Optionally strips XML comment nodes to maximize size reduction
Preserves whitespace inside CDATA blocks and quoted attribute values
Computes before-and-after byte counts with percentage saved

How to Use

Paste your indented XML document into the input field.
Toggle optional settings like comment removal.
Click "Minify XML" to compact the markup into a single stream.
Check the byte savings summary.
Copy the compressed XML string for production use.

Example

Sample input

<root>
  <item>alpha</item>
  <item>beta</item>
</root>

Sample output

<root><item>alpha</item><item>beta</item></root>

Edge Cases

Processing instructions at document start
Attributes with embedded quotes
Pretty-printed SOAP envelopes

Frequently Asked Questions

Does XML minification affect attribute values or text content?

No. Only whitespace between elements (such as line returns and tab indents) is removed. Attribute values and text nodes are preserved.

Is minified XML safe for SOAP or RSS feeds?

Yes. Standard XML parsers treat inter-tag whitespace as insignificant according to W3C standards, so SOAP clients and feed readers parse it normally.

Can I restore the minified XML later?

Yes. You can paste the minified XML into our XML Formatter at any time to re-indent and inspect the hierarchy.

Related Tools

XML Formatter & Beautifier — Format XML Online XML to JSON Converter — Parse XML Online XML to YAML Converter — Online Free Tool Gzip Compress — Compress Text Data with Gzip Online

Privacy notice: when you run this tool, your input is sent over HTTPS to our server, processed in memory and returned. It is not stored or logged. Avoid pasting live secrets such as private keys or passwords.