Pagediff is a simple page compare application. It helps web developers and designers to see HTML-code(text) differences between web pages.
It doesn't take original page source. It takes browser generated DOM compliant view source. It omits Doctype declaration and HTML tags.
After installation, to use this, one has to
1. Right click on a page & select 'Start DIFF' (this action saves the current page to memory),
2. Go to the page which one wants to compare (with the saved one) and
3. Right click on the page & select 'Show DIFF'.