XmlGrid editor can format any XML string to an easily readable indented format. You just copy and paste your XML string to the Input box, XmlGrid will parse, validate the input string and display it in a GridView format. You can then select the TextView to get a nicely indented text of your XML document.

Here is an example. The unformatted single line XML string:

__code__

<root><!-- just a test --><levelOne>1<levelTwo>2</levelTwo></levelOne></root>

__code__

The formatted XML:

__code__

<root>

       <!-- just a test -->

       <levelOne>1

              <levelTwo>2</levelTwo>

       </levelOne>

</root>

__code__