Format, validate, and beautify XML data instantly
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XML (eXtensible Markup Language) is a markup language designed to store and transport data, while HTML is designed to display data. XML focuses on what data is, HTML on how data looks. XML tags are user-defined, whereas HTML has predefined tags. XML is stricter with syntax (case-sensitive, requires closing tags, attributes must be quoted).
XML validation ensures your XML document follows proper syntax rules (well-formed) and optionally conforms to a schema (valid). Well-formed XML must have proper nesting, closed tags, quoted attributes, and a single root element. Validation prevents errors in applications that process XML, such as search engine crawlers reading sitemaps or RSS feed readers.
XML sitemaps are files that list URLs on a website along with metadata (last modified, priority, change frequency). They help search engines crawl and index websites more effectively. Sitemaps are especially useful for large websites, new websites with few external links, or websites with rich media content that might not be discovered through normal crawling.
Minify XML (remove whitespace) for production environments to reduce file size and improve transmission speed—ideal for sitemaps, RSS feeds, or API responses. Format (beautify) XML for development, debugging, and human readability. Formatted XML with proper indentation makes it easier to understand structure and spot errors.