Selenium is a powerful open-source tool primarily used for automating web browsers, making it ideal for testing web applications across different platforms. It supports multiple programming languages such as Python, Java, C#, and JavaScript, allowing developers to create scripts that can interact with web pages by simulating user actions like clicking, typing, and scrolling. Selenium works with various browsers, including Chrome, Firefox, and Edge, by using specific WebDriver executables for each. It offers flexibility in locating webpage elements through methods like ID, name, class, CSS sel