Selenium Remote Control (RC) is a test tool that allows you to write automated web application UI tests in any programming language against any HTTP website using any mainstream JavaScript-enabled browser. Selenium RC comes in two parts. A server which automatically launches and kills browsers, and acts as a HTTP proxy for web requests from them. Client libraries for your favorite computer language. Here is a simplified architectural representation.... Selenium

Overview – Selenium IDE is an integrated development environment for performing automation tests for web applications.  Selenium tests can be written as HTML tables or coded in various languages like Java , C#, PHP, Perl, Python and can be run directly in most modern browsers (Firefox, IE, Chrome, Safari) present in the industry. The IDE can help you to record, edit and debug tests. Selenium IDE is only available for Firefox. Pre requisite