Developer Tools

XML Formatter Online - Format, Validate, and Minify XML

Format, validate, beautify, and minify XML online for APIs, sitemaps, RSS feeds, SOAP payloads, and config files. Runs in your browser.

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Example

Format a compact XML snippet

Readable XML is easier to inspect when debugging APIs, feeds, and configuration files.

Input


                        <site><name>QuickToolFlow</name><tool>XML Formatter</tool></site>

Output


                        <site>
  <name>QuickToolFlow</name>
  <tool>XML Formatter</tool>
</site>

Find an unescaped ampersand

Raw ampersands are one of the most common XML copy-and-paste errors in feeds and exports.

Input


                        <company><name>Research & Tools</name></company>

Output


                        Parser error until the ampersand is written as &amp;amp;

Review sitemap entries

Formatting a sitemap makes it easier to spot missing loc, lastmod, or nested URL elements.

Input


                        <urlset><url><loc>https://quicktoolflow.com/tools/</loc><lastmod>2026-06-11</lastmod></url></urlset>

Output


                        <urlset>
  <url>
    <loc>https://quicktoolflow.com/tools/</loc>
    <lastmod>2026-06-11</lastmod>
  </url>
</urlset>

Practical Notes

How to Use

  1. 1. Paste XML into the input field.
  2. 2. Click Format XML to validate and indent it.
  3. 3. Use Minify XML when you need compact output.
  4. 4. Copy the formatted or minified result.

Features

Use Cases

Frequently Asked Questions

Does this XML formatter upload my XML?
No. XML validation, formatting, and minification happen inside your browser after the page loads. Your XML is not uploaded for processing.
Can I use this as an XML validator online?
Yes, it checks whether the XML is well-formed and reports parser errors. It does not validate against an XSD schema or feed-specific business rules.
Can it format RSS feeds and sitemaps?
Yes. It can format well-formed XML including RSS, Atom, sitemap, SVG, SOAP, and config snippets.
What does minifying XML do?
XML minification removes formatting whitespace between tags while keeping the same elements and attributes.
Why is my XML invalid?
Common causes include missing closing tags, multiple root elements, unquoted attributes, or raw ampersands that should be escaped.
Does formatting validate an XML schema?
No. This tool checks whether XML is well-formed. It does not validate XSD rules, required business fields, or feed-specific requirements.
Why did my XML declaration change or disappear?
Browser XML serialization can normalize the document. If your workflow requires a specific XML declaration, encoding line, or processing instruction, review that header after formatting.