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XML Minifier — Minify XML Online

Compact XML documents, feeds, sitemaps and SOAP payloads by removing indentation and comments — with a well-formedness check so nothing breaks.

Aktualisiert am
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Deine Daten verlassen nie deinen Computer. Die Verarbeitung erfolgt zu 100 % lokal im Browser.

So nutzt du: XML Minifier

  1. Paste XML or open an .xml, .rss or .svg file.
  2. The document is checked for well-formedness; errors show the line.
  3. Choose whether to remove comments and trim whitespace around text values.
  4. Copy or download the minified XML.

What does XML minification do?

XML is often pretty-printed with indentation and line breaks to make it readable. For machines those characters are just extra bytes. An XML minifier removes whitespace between tags, normalizes spacing inside tags and optionally strips comments, while leaving element text, attribute values, CDATA sections and processing instructions exactly as they were.

What is preserved

PartHandling
<?xml … ?> declarationKept
<!DOCTYPE> and internal subsetsKept
<![CDATA[ … ]]>Kept byte for byte
Text inside elementsKept (optionally trimmed)
Whitespace-only text between tagsRemoved
CommentsRemoved (optional)

A note on mixed content

In document-style XML such as XHTML or DocBook, whitespace between inline elements can be meaningful (<b>bold</b> <i>text</i>). Whitespace-only nodes are removed by design, so check such documents before using the result, or keep them formatted. Data-oriented XML — feeds, configs, API payloads, sitemaps — is always safe.

Typical uses

  • Shrinking SOAP and XML API requests and responses.
  • Compacting RSS/Atom feeds and product feeds for merchant platforms.
  • Reducing the size of XML sitemaps and configuration files stored in databases.

To go the other way, use the XML formatter. SVG files are XML too, but the SVG optimizer saves much more by also simplifying paths and removing editor metadata.

Auch gesucht als: minify xml, xml compressor, compress xml, xml one line, remove whitespace xml, xml minify online.

Passende Tools zu: XML Minifier

  • JSON Minifier — Remove all unnecessary whitespace from JSON, validate it at the same time and see exactly how many bytes you save — before and after gzip.
  • HTML Minifier — Shrink HTML pages and templates by removing comments and redundant whitespace, minifying inline <style> and <script>, and cleaning up attributes — while keeping the layout identical.
  • Sitemap Validator — Find and validate your XML sitemap — URL count, sitemap index children, lastmod coverage, duplicates and foreign-host URLs — and check that the pages it lists really return 200.
  • Gzip Compress & Decompress — Compress text or any file with gzip, zlib or raw deflate — or paste Base64 / open a .gz file to decompress it.

Häufige Fragen

Does minified XML still validate?
Yes. Only insignificant whitespace and (optionally) comments are removed, so a well-formed document stays well-formed and validates against the same schema.
Are CDATA sections changed?
No. CDATA content is copied exactly, including whitespace and special characters.
Why do I get a “not well-formed” error?
The XML has a structural problem such as an unclosed tag, an unescaped & or two root elements. The line number points to where the parser stopped.
Is my XML uploaded?
No. Everything runs in your browser.
Kann ich XML Minifier als Web-App installieren und offline nutzen?
Ja. XML Minifier ist eine installierbare Web-App (PWA) – sie wird über Ihren Browser installiert und nicht aus einem App-Store heruntergeladen. Klicken Sie oben auf dieser Seite in Chrome oder Edge (Windows, macOS, Linux, ChromeOS) auf „App installieren“ oder verwenden Sie auf Android-Geräten „Teilen“ → „Zum Startbildschirm hinzufügen“ auf dem iPhone und iPad bzw. „Datei“ → „Zum Dock hinzufügen“ in Safari 17+ auf einem Mac. Die App öffnet sich dann in einem eigenen Fenster mit einem eigenen Symbol, und da sie vollständig in Ihrem Browser ausgeführt wird, funktioniert sie auch offline. Firefox auf dem Desktop kann keine Web-Apps installieren. So funktioniert die Installation.

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