Selenium is an open-source test automation framework that empowers testers to automate web browser interactions, verify web application functionality, and ensure the reliability of web-based software. Selenium supports all leading web browsers, including Google Chrome, Mozilla Firefox, Microsoft Edge, Safari, and Internet Explorer. Also, this framework gives an opportunity to write test scripts in the most diverse programming languages. Testers may choose among Java, Python, C#, Ruby, JavaScript, and others.