Test your website on several browsers

Every good webmaster should check the compatibility of their site with browsers. But it is possible, depending on your operating system, you're having trouble try one or the other browsers. Here are some solutions.

Online Verification

Some websites offer for you to make screenshots of your site in different browsers. This allows not to install multiple browsers on your machine. However, a disadvantage is that you can not test your changes in real time. Indeed, it takes some time before your application is accepted, depending on the number of users of the service.

Local Verification

The most common browsers can be installed without difficulty on Windows:
Opera
Safari
Firefox
But other problems arise. These different versions of Internet Explorer. And yes, although these browsers are "made-in Microsoft, there are major problems of compatibility with different versions and operating systems.

Windows XP users

If you are using IE6:
I urge you to upgrade to IE7, especially for security reasons. Anyway, you can use a standalone IE7.
Note: this method is not supported by microsoft. To perform at your own risk.

If you are already in IE7:
I recommend using Multiple IE to run IE6 and below.

Windows Vista users

- Solution 1 official Microsoft:
Virtualizing a system with XP IE6 (image to download for free HERE). For virtualization, Microsoft Virtual PC advice, but personally I recommend VirtualBox.
- Solution 2 official Microsoft:
Use "User Agent String Utility" (free download HERE). This is a utility that opens an IE7 window, but pretending to be IE6.
Note:
A test to verify the possibility of using this technology in development.

XP and Vista users with IE7

Use this software IEtester.
This is an application that allows to launch within the same application form tabs IE7, 6 and 5.5. The development is in its infancy, but it is promising.

Windows Users

Use Xenocode
These applications require no installation, they are launched from a "virtual engine". This allows to test different browsers, different versions, without problems of incompatibility.
The least: Takes (much) more disk space than the "normal" browser.

Other utilities

There are other utilities, some free, that can simultaneously view the rendering of your site in several browsers. It shows in real time in a single window, the effect of your changes.