Cypress is an open-source automation testing framework based on JavaScript, designed for testing web and API applications. Unlike Selenium, which requires browser drivers, Cypress runs tests directly inside the browser, enhancing reliability and reducing flakiness. It supports end-to-end, unit, and integration testing, particularly for modern web applications built with frameworks like React and Angular. Despite supporting only JavaScript, Cypress is praised for its speed, ease of debugging, and features such as parallel test execution, automatic screenshots, and video recordings of test executions. For broader browser and OS compatibility, Cypress tests can be run on cloud platforms like LambdaTest, which also offers enhanced features like parallel testing and CI/CD integration. While Cypress excels in many areas, it is less suited for web scraping and performance testing compared to Selenium.