XML Formatter

Format and validate XML.

TL;DR: XML Formatter is a free, browser-based tool that lets you format and validate XML.

What Is the XML Formatter?

XML Formatter parses, validates, and beautifies XML documents, RSS feeds, SOAP envelopes, and SVG files with structured tree indentation and syntax validation.

Step-by-Step: Using This Tool

  1. Paste your XML code into the editor.
  2. Select indentation (2 or 4 spaces).
  3. Click 'Format XML' to validate schema and format tags.
  4. Copy the beautified XML code.

Maximize Your Results

  • Validate XML Syntax: Immediately flags unclosed tags and mismatched attribute quotes.
  • Format RSS & Sitemaps: Beautify dense XML sitemaps and podcast RSS feeds for easy inspection.
  • SOAP API Debugging: Format large XML enterprise API request and response envelopes.

Related Guides & Tutorials

100% Client-Side Privacy Guarantee

All processing runs locally inside your browser using JavaScript and HTML5 APIs. Your data, files, and inputs are never uploaded to any remote server. Complete privacy by design.

Frequently Asked Questions

It means the XML follows basic structural rules — every tag is properly closed, nesting is consistent, and there's a single root element — regardless of whether the content matches any specific schema.
No — this checks that the XML is structurally well-formed, not that it conforms to a specific XML Schema (XSD) or DTD, which would require a separate schema-aware validator.
The tool reports the parser's specific error message, typically pointing to roughly where the structural problem is, such as an unclosed tag or mismatched element.
No — formatting and validation both happen locally in your browser, so your data never leaves your device.
Yes, though very large files may take a moment longer to process since everything runs in your browser rather than on a server.

Cite This Tool

Referencing this tool in a paper, article, or bibliography? Copy a ready-made citation below.

NexLove.org. (2026). XML Formatter [Software]. https://nexlove.org/tools/xml-formatter.html
“XML Formatter.” NexLove.org, 2026, nexlove.org/tools/xml-formatter.html.
NexLove.org (2026) XML Formatter. Available at: https://nexlove.org/tools/xml-formatter.html (Accessed: 2026).
@misc{nexlove_xml_formatter,
  title = {XML Formatter},
  author = {{NexLove.org}},
  year = {2026},
  url = {https://nexlove.org/tools/xml-formatter.html}
}

Embed This Tool

Add the live XML Formatter tool to your own website with this snippet — it loads the real, working tool in an iframe, not a static screenshot.

<iframe src="https://nexlove.org/embed/xml-formatter.html" width="100%" height="600" style="border:1px solid #e2e8f0;border-radius:12px" title="XML Formatter — NexLove.org" loading="lazy"></iframe>

XML Formatter Technical Details

Built for developers, this utility provides instant data formatting, conversion, and inspection without the overhead of heavy IDEs.

Features

  • Zero Latency: All parsing and formatting happens entirely in your browser using local JavaScript engines.
  • Data Security: Your payloads, tokens, and code snippets are never sent to a backend server, making it safe for proprietary code.
  • Strict Standards: Follows standard encoding and RFC protocols to ensure output validity.
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