What does this XML tool check?

It checks whether XML is well-formed: valid nesting, matching tags, valid characters, and parseable structure. It does not validate against an XSD, DTD, or DITA specialization.

Can I format DITA XML with it?

Yes. DITA topics and maps are XML files, so the formatter works for .dita and .ditamap content.

No. Formatting, minifying, validation, and stats all run in your browser.

XML Formatter & Validator

Paste XML and instantly format it with indentation, minify it, or validate that it is well-formed. Useful for DITA topics, RSS feeds, SVG, sitemap XML, SOAP payloads, and config files. Runs entirely in your browser using DOMParser, so nothing is uploaded.

XML is well-formed.

XML input

Output

<?xml version="1.0" encoding="UTF-8"?>
<article id="world-cup-2026-curler">
  <title>World Cup 2026: The Art of the Curler
  </title>
  <section type="overview">
    <p>A curler is a shot that bends around a defender and drops inside the far post.
    </p>
  </section>
  <section type="steps">
    <step>Open your body before contact.
    </step>
    <step>Strike the lower outside edge of the ball.
    </step>
    <step>Follow through across your body.
    </step>
  </section>
</article>

Characters

491

Lines

Example Input and Output

Format and validate a DITA topic

XML input

<concept id="local-llm"><title>Local LLM</title><shortdesc>Run an LLM on your own computer.</shortdesc><conbody><p>Check RAM and VRAM first.</p></conbody></concept>

Formatted XML output

<concept id="local-llm">
  <title>Local LLM</title>
  <shortdesc>Run an LLM on your own computer.</shortdesc>
  <conbody>
    <p>Check RAM and VRAM first.</p>
  </conbody>
</concept>

The validator checks well-formed XML, including DITA .dita and .ditamap files.

How to Use XML Formatter & Validator

Open the XML Formatter & Validator
Paste XML, DITA, RSS, SVG, sitemap XML, or config XML
Click Format XML, Minify, or Validate
Review any parse error message
Copy or download the formatted XML

Frequently Asked Questions

What does this XML tool check?: It checks whether XML is well-formed: valid nesting, matching tags, valid characters, and parseable structure. It does not validate against an XSD, DTD, or DITA specialization.
Can I format DITA XML with it?: Yes. DITA topics and maps are XML files, so the formatter works for .dita and .ditamap content.
Is my XML uploaded?: No. Formatting, minifying, validation, and stats all run in your browser.

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About XML Formatter & Validator

Format, minify, and validate XML in your browser. Works for DITA, RSS, SVG, sitemap XML, config XML, and XML snippets. Free, no signup. This tool runs entirely in your browser, so your content is not sent to a server. MarkdownMe provides free, fast, and reliable Markdown tools for developers, writers, and anyone who works with Markdown.