Selenium

Selenium is an open-source framework primarily used for automating web applications for testing purposes. It allows developers to write test scripts in various programming languages, such as Java, C#, and Python, which can then control a web browser's actions. Selenium is particularly valuable for creating robust regression testing suites, making it easier to ensure that web applications function correctly after updates.

Besides testing, it can also be utilized for automating repetitive web-based tasks, such as data entry and web scraping. The framework consists of various components, including Selenium WebDriver, Selenium IDE, and Selenium Grid, each catering to different automation needs.