Format and beautify XML code online with proper indentation and syntax highlighting. Validates XML structure, fixes whitespace, and makes complex XML documents easy to read and debug.
XML (Extensible Markup Language) is a flexible markup language for storing and transporting structured data.
XML uses tags and attributes and supports comments. JSON uses key-value pairs and is lighter-weight and more common in modern APIs.
No. The XML formatter only adjusts whitespace (newlines and indentation) and does not modify tag names, attribute values, or text node content. Formatted and original XML parse to exactly the same data structure. It is safe to format production configuration files as long as you verify the output afterward.
The xml:space='preserve' attribute tells the parser to preserve all whitespace (including newlines and indentation) within that element and its children. Formatting tools typically ignore this attribute and re-indent the entire document. Be careful when handling XML that includes this attribute (e.g., XSLT, Word document formats) — incorrect formatting may change the data semantics. Always back up the original file before formatting.