Selenium: Open-Source Web Automation Testing Tool

Selenium is an open-source testing tool that is used to automate web applications. It is a suite of tools that includes Selenium IDE, Selenium RC, Selenium WebDriver, and Selenium Grid. Selenium can be used to test web applications across different browsers and platforms. It supports various programming languages such as Java, C#, Python, Ruby, and more. Selenium is widely used by software testers and developers to automate web testing and ensure the quality of web applications.