qevroXML Formatter
Paste or upload your XML to beautify, format, and validate it. Supports namespaces, CDATA, and processing instructions.
About XML Formatting
What is XML?
XML (Extensible Markup Language) is a markup language for storing and transporting structured data. It is used in web services (SOAP), configuration files, RSS feeds, SVG graphics, and data interchange between systems.
How to Format XML Online
Paste your XML, click Format, and get properly indented XML with consistent spacing. The tool uses your browser's native DOMParser for accurate validation, catching mismatched tags, unclosed elements, and invalid characters with exact positions.
XML Validation Features
The formatter validates well-formedness: matching open/close tags, proper nesting, valid attribute syntax, correct namespace usage, and proper character encoding. It shows exact line and column numbers for any errors found.