Developer Utilities · Free tool
XML Formatter
Paste XML to format, indent, and validate it instantly in your browser. Checks syntax and makes messy markup readable — free, no signup, and no uploads required.
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What it does
Paste XML, click Format, and get a cleanly indented, 2-space output that’s easy to read and diff. Invalid XML surfaces the parser error inline — much faster than opening an IDE. Minify mode strips whitespace between tags when you need the smallest possible payload.
All parsing uses the browser’s built-in DOMParser, so it runs without dependencies and handles namespaces, CDATA, comments, and self-closing tags correctly. For JSON, use JSON Formatter; for YAML↔JSON conversions, YAML ↔ JSON.
Embed this tool on your siteShow snippetHide
Paste this snippet into any page. Loads on-demand (lazy), no tracking scripts, and sized to most dashboards. Replace the height to fit your layout.
<iframe src="https://freetoolarena.com/embed/xml-formatter" width="100%" height="720" frameborder="0" loading="lazy" title="XML Formatter" style="border:1px solid #e2e8f0;border-radius:12px;max-width:720px;"></iframe>How to use it
- Paste XML into the input.
- Click Format for indented output, or Minify for a compact version.
- Read the error message if the parser flags a problem.
- Copy the output when it looks right.
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Learn more
Guides about this topic
- Developers & Technical · GuideHow to read and write XMLLearn XML syntax, namespaces, escaping, schemas, XPath, and XSLT basics free online. Parse safely and avoid XXE attacks instantly with no download required.
- How-To & Life · GuideHow to format XMLWell-formed vs valid XML, attribute order, CDATA, and namespaces. Pretty-print your XML online for free, no registration required, and catch errors in seconds.
- Using Our Tools · GuideHow to generate QR codesMake QR codes for URLs, WiFi, vCard, or text. Learn error correction and sizing, then generate your QR code online free with no sign-up in seconds.
- Using Our Tools · GuideHow to create a strong passwordGenerate a strong password instantly online for free. Build high-entropy passphrases following NIST 2026 rules with no download needed.
- Developers & Technical · GuideHow to encode and decode Base64Understand the 3-to-4 mechanic and 33% overhead for standard, URL-safe, and MIME Base64. Free online reference to avoid common mistakes, no download needed.
- Design & Media · GuideHow to choose a color paletteBuild accessible color palettes using HSL theory, monochromatic to triadic schemes, WCAG contrast checks, and dark mode tips. Free, no-download guide.
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