Getting started with Selenium IDE requires no additional setup other than installing the extension on your web browser. One of the driving philosophies is to provide an easy to use tool that will give instant feedback. The more likely people are to author tests, which in turn results in better tested apps.
Simple, turn-key solution to quickly author reliable end-to-end tests. Works out of the box for any web app. Enjoy easier test debugging with rich IDE features like setting breakpoints and pausing on exceptions. Run your tests on any browser/OS combination in parallel using the Command-line Runner for Selenium IDE.
It records multiple locators for each element it interacts with. If one locator fails during playback, the others will be tried until one is successful. Download Selenium IDE for either Chrome and get started.
Through the use of the run command, you can re-use one test case inside of another (e.g., allowing you to re-use your login logic in multiple places throughout a suite).
It can be extended through the use of plugins. They can introduce new commands to the IDE or integrate with a third-party service. Write your own or install one that someone else has already written.