Selenium is an open-source automation testing tool used to test web applications across multiple browsers and platforms. It is widely used across industries such as IT, e-commerce, banking, healthcare, and software development to ensure quality and reliability. With increasing demand for automation, Selenium offers strong career opportunities like Automation Tester, QA Engineer, and Test Analyst. To advance your testing career, enroll in Selenium Training in Chennai at FITA Academy to enhance your skills and job prospects.