PrimeUtil

XML Formatter

Paste raw or minified XML and instantly get a beautifully formatted, validated output with syntax highlighting. Minify XML to reduce size, spot errors with clear messages, and copy the result in one click — all in your browser.

Formatted output will appear here.

Features

  • Real-time XML validation with descriptive error messages
  • Syntax highlighting for tags, attributes, and values
  • Minify XML to reduce payload size
  • 2-space or 4-space indentation options
  • Works entirely offline — no data sent to any server

Frequently Asked Questions

What is XML formatting?
XML formatting (pretty-printing) adds consistent indentation and line breaks to XML markup, making it human-readable. Minified XML removes all unnecessary whitespace for smaller file sizes.
Does this tool send my XML data anywhere?
No. All formatting and validation happens entirely in your browser using the built-in DOMParser API. Your data never leaves your device.
What XML versions are supported?
The formatter supports XML 1.0 as processed by your browser's native DOMParser, covering RSS, SOAP, configuration files, and most XML data formats.

From our blog

XML Formatter for Configs, RSS, and Legacy APIs

When XML still shows up in your stack and how formatting helps with SOAP configs, Android manifests, and feeds.

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