Selenium is a tool that helps us control a web browser using code instead of doing everything manually. In my own words, Selenium is like a virtual user. Whatever actions a person does on a website—such as opening a page, clicking buttons, typing in forms, or checking information—Selenium can do the same automatically. For example, if you want to test a login page, instead of typing the username and password again and again, you can write a small program (using a language like Python) and Selenium will: Open the browser Go to the website Enter details Click the login button This makes testing faster, easier, and more accurate, especially when the same steps need to be repeated many times. It is a suite of tools mainly used for web application testing. It supports multiple programming languages like Python, Java, C#, etc., and works with browsers like Chrome, Firefox, Edge.…