XML Formatter & Beautifier
Format and beautify XML online. Free XML formatter — pretty print, validate structure, and minify XML. Client-side only, no data leaves browser.
Three steps to get started
Choose mode
Select "Format / Beautify" to pretty print your XML, or "Minify" to produce compact output.
Paste your XML
Paste any XML into the input area. If the XML is invalid, an error will appear describing the parse problem.
Copy the result
Copy the formatted or minified output for use in your editor, API, or configuration file.
XML: still everywhere in modern development
Despite the rise of JSON, XML remains ubiquitous. It powers SOAP web services, SVG graphics, Android layouts, Maven and Gradle build files, Microsoft Office documents (DOCX, XLSX), RSS and Atom feeds, XHTML, and countless enterprise integration formats. Knowing how to format, validate, and work with XML is an essential developer skill.
When to format vs. minify
- Format/Beautify — debugging API responses, reading config files, code review, documentation
- Minify — production deployments, API payloads, reducing storage size, performance optimization
XML vs. JSON
XML is more verbose than JSON but offers capabilities JSON lacks: comments (not in JSON), namespaces, attributes vs. content distinction, processing instructions, document type declarations, and schema validation (XSD). Many legacy enterprise systems use XML precisely because of its rich validation and transformation ecosystem (XSLT, XPath, XQuery).
All formatting and validation happens in your browser using the native DOMParser API. No XML data is ever sent to a server.