seleniumtesting | selenium automation testing | automation testing What is Selenium ? Selenium is an open-source suite of tools and libraries that is used for browser automation . Selenium us used to: It allows users to test their websites functionally on different browsers . Perform Cross browser testing to check if the website functions consistently across different browsers. It provides a single interface that lets you write test scripts in programming languages like Ruby, Java, NodeJS, PHP, Perl, Python, JavaScript, and C# , among others. Selenium is very extensible and can be integrated with other tools and frameworks like TestNG, JUnit, Cucumber, etc.