Short description of CS-HTMLDiff 2.1.146: ComponentSoftware HTMLDiff (CS-HTMLDiff) is an advanced file-difference analysis tool for Microsoft Windows which analyzes & presents differences in HTML, XML, MS-Word and text documents.
Changes to HTML files may be viewed visually as they appear in your browser, or you can analyze the changes at source level.
CS-HTMLDiff even lets you compare online documents !!