Although everyone tries hard to make websites work with every browser, they are generally not 100% compatible.

And, with the increasing usage of HTML5+CSS3, they are becoming incompatible with more and more browsers everyday.

Free The Foxes is a free JavaScript+HTML+CSS-based solution for displaying good-looking notifications to visitors with a incompatible browser.

With the help of a simple configuration file, it is possible to rate browsers and their versions where the notification window displays result according to these ratings.

The window also guides users to download a better browser with the options and their download links.

Browser Sandbox is an online platform which makes launching various browser versions possible.

It requires an installation of a plugin & can run:

• IE6-7-8
• Firefox 2-3-3.5
• Apple Safari 3-4
• Opera 9-10
• Google Chrome

The platform is definitely a gold mine for making cross-browser tests quickly & easily.

P.S. Spoon allows you to convert your own apps to Spoon apps & post them on the web. You can check the platform's homepage for that.

DetectMobileBrowsers.mobi is a website providing a function & information on how to detect mobile browsers.

It can detect:

• iPhone
• Opera Mini
• Android
• Blackberry

It has an online function generator that guides you to create a personalized function according to "how you want to treat every browser".

P.S. The code is free to be used on non-profit websites.