XmlShell, the ultimate lightweight XML editor, is a Windows-based XML editor. It's fast, powerful, flexible, and intuitive. Main features:

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  True side-by-side tree structural view and table/editor/browser views:
  

You can make changes in the XML tree view and immediately see your changes in the browser view, XSLT view, or plain text editor view.
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  Multiple-selectable tree:
  

Use the standard multiple-selection methods to select multiple nodes in the XML tree. This feature makes mass editing a breeze.
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  Grid-like table views to display table-like XML data:
  

Many times, XML files contains record-like data. XmlShell's table views make it intuitive and convenient to see and edit such data.
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  Syntax-colored free-form text editor:
  

The power and flexibility of a plain text editor is a desired feature when the users know what they are doing and want to go straight to the guts.
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  Intelligent popup list in editor:
  

XmlShell has built-in popup list for XSL elements and attributes. XmlShell also keeps track of the elements, attributes in the document, and pops up the list to help you type. When you try to type a closing tag for an element, XmlShell will try to find the tag and close it for you.
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  XSL Transform view:
  

You can perform XSLT without really embed XSL in your XML document. XmlShell will open a separate view to show the results in the format of your choice (XML, HTML or plain text).
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  Drag Drop:
  

Arrange your XML structure by dragging dropping one or more nodes within the same or cross multiple XML files.
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  Opens non well-formed XML files:
  

For non well-formed XML files, XmlShell will still open them in the text editor view and show you where the problem is. In this way, you can fix corrupted XML files or convert non-XML files to XML files.