Selenium Integrated Development Environment (IDE)
Selenium IDE (Integrated Development Environment) is an open source web automation testing tool under the Selenium Suite. Unlike Selenium WebDriver and RC, it does not require any programming logic to write its test scripts rather you can simply record your interactions with the browser to create test cases. Subsequently, you can use the playback option to re-run the test cases.
Note: Selenium IDE is available only as Mozilla Firefox and Chrome plug-in, which means you can't record your test cases on browsers other than Firefox and Chrome. The recorded test scripts can also be exported to programming languages like C#, Java, Ruby or Python.
The following image shows the default interface of Selenium IDE: