Free online XML Editor xmlgrid.net can check the well-formedness and syntax for your XML documents. It will point out what the syntax error is if any error is found, and takes you to the location so you can fix it. Your XML document will pass the following syntax check:

In an XML document the characters are divided into markup and content. Strings of characters either begin with the character < and end with a >, or begin with the character & and end with a ; are called markup. Strings of characters which are not markup are content.

A markup construct that begins with < and ends with >. There are three kinds of tags:

A logical document component either begins with a start-tag and ends with a matching end-tag or consists only of an empty-element tag. The characters between the start- and end-tags, if any, are the element's content, and may contain markup, including other elements, which are called child elements. An example: 

__code__

              <Author>

                     <Name>John Doe</Name>

                     <Email>jd@xmlgrid.net</Email>

                     <WebSite>xmlgrid.net</WebSite>

              </Author>

__code__

A markup construct consisting of a name/value pair that exists within a start-tag or empty-element tag. Example: this form element has 3 attributes: name, action and method. 

__code__

<form name="input" action="handleAction.cgi" method="POST">

__code__