I stumbled upon Expression SuperPreview, a really neat tool for comparing different versions of web pages.
It basically lets you enter the URL (local or public) of a web page, and allow you to compare images of different browser versions. Compard to other tools, like BrowserShots, it’s got the handy addition to also inspect and compare DOM elements in the views.
Slim & Free or Fat & Premium
There’s a free, slimmed version available for Internet Explorer (6+) comparisons and a “premium” version included in Expression Web, where you can compare with Firefox and other browsers you may have installed. The premium version is available as a 60-day trial, and the licence is priced at $149 USD, which could prove to be money well spent.
I usually test my apps in IETester and on a virtual machine, but I’ve downloaded the 60-day trial of SuperPreview and will give it a go.
Just to be clear: this tool, unfortunately, doesn’t remove the need of testing, as it’s only good for pure visual comparison of pages and doesn’t support interaction.
Also stumbled upon the Adobe Browser Lab – https://browserlab.adobe.com – an online tool for comparing browser versions, much as http://www.browsershots.org.