A fast and easy source level XML Editor, XML Marker can load and display very large XML files. The chief feature of this tool is a tree-table-text interface that shows both the hierarchal and tabular nature of XML files. Much like the familiar Microsoft Windows Explorer, selecting an element in the tree shows the content of that element in a table form.

Selecting an element in one of these views (either the tree or the table) highlights the corresponding text element in the integrated text editor. This makes it easy to see the relation between the GUI and the actual XML. The table view is editable so you can modify existing files by typing new values into the table. Other features include interactive syntax check, indentation, and text wizards.