For Notepad | Xml Tools Plugin
If you touch XML files more than once a week, install XML Tools today. Your eyes (and your team) will thank you.
While Notepad++ handles syntax highlighting for XML by default, it lacks the logic to understand the structure. The XML Tools plugin adds: xml tools plugin for notepad
For strict .xml , .xslt , .wsdl , or .svg files, XML Tools is unbeatable. If you touch XML files more than once
: Automatically formats messy or single-line XML code into a readable, indented structure. Variations include "Pretty print (XML only)" and "Pretty print (text indent)" for different content types. or .svg files