I’ve been using IETester for a few months now and find it invaluable in my day-to-day development or new and old websites. IETester is simply a browser that allows you to view your website in multiple versions of Internet Explorer while keeping your standard install of Internet Explorer.
IETester is a free WebBrowser that allows you to have the rendering and javascript engines of IE8, IE7 IE 6 and IE5.5 on Windows 7, Vista and XP, as well as the installed IE in the same process.
So far IETester by my-debugbar.com has had over 750,000 downloads and so is a popular choice amongst web designer across the globe.

IETester has some limitations:
- The Previous/Next buttons are not working properly
- Focus is not working properly
- Java applets are not working
- Flash is not working on IE6 instance in user mode : A solution is to launch IETester as admin user and Flash will work.
- CSS Filters are not working correctly in user mode : A solution is to launch IETester as admin user and CSS Filters will work.


August 11th, 2009 at 11:29 am
Not trying to spam your comments (i am a co-owner of this company) have you tried http://crossbrowsertesting.com? We have lots of versions of IE, firefox and other browsers also. You dont have to let this comment show if you do not want. Come check us out.
August 11th, 2009 at 11:33 am
Thanks for information Tony, I’m sure our readers will check it out
August 13th, 2009 at 10:37 pm
I’ve used IE Tester alot in the past, very good for checking outdated IE browsers. Shame it’s not available for Mac
August 20th, 2009 at 8:06 am
To rescue the web designers from this aching job of testing browser compatibility in different browsers there are few websites which offer this service. On these websites you can check the compatibility of your website in all desired browsers. You can find these websites at http://www.bestpsdtohtml.com/7-awesome-resources-to-test-cross-browser-compatibility-of-your-website/
August 20th, 2009 at 8:10 am
Thanks Andrew for the link
August 25th, 2009 at 10:12 am
Check out that bird with massive eyes!