Markup
XML Formatter
Format and prettify XML strings with proper indentation.
About XML Formatter
This XML Formatter organizes standard Extensible Markup Language into a clean, hierarchical tree. It acts as an intelligent xml editor and beautifier, adding correct indentation to make complex XML documents easy for humans to scan and understand.
Simplify the debugging of SOAP messages, sitemaps, and config files. Unformatted XML is dense and difficult to parse visually. This tool ensures that tags are properly nested and closed, helping you validate the structure of your data interchange format.
Input your XML string. The tool will parse and indent XML nodes automatically. You can copy the formatted output or minify it back to a single string for production usage.
Under the Hood
XML is parsed using a DOMParser to build a node tree, which allows validation of tag nesting and closure. Formatting is achieved by serializing the DOM tree with explicit indentation logic (recursively traversing nodes) rather than simple regex replacement, which ensures that CDATA sections and mixed content attributes are preserved correctly.