Website testing tools are essential for verifying functionality, performance, and accessibility, ensuring websites meet quality standards.LambdaTest, Selenium, Playwright, Puppeteer, Cypress, and other tools play a crucial role in web application testing.LambdaTest offers cross-browser and device testing, real device cloud, and automation framework support, making it a leading tool.Selenium is popular for cross-browser and OS testing, Selenium WebDriver, IDE, Grid, and multi-language support.Playwright stands out for multi-browser support, detailed debugging, responsive testing, and multi-page interaction capabilities.Puppeteer is known for iframe interaction, advanced features, framework integration, and network control in website testing.Cypress offers faster, reliable tests, automatic screenshots, network control, and debugging tools for effective website testing.Cucumber supports BDD, easy reuse, automation integration, built-in reporting, living documentation, and framework integration.Nightwatch.js enables cross-browser testing, intuitive API, parallel testing, CI/CD integration, detailed reports, and custom commands.TestCafe provides cross-browser testing, reliable assertions, easy-to-use API, and fast setup for effective website testing.Katalon Studio offers flakiness handling, real-time graphics, cross-browser testing, supported testing approaches, and user-friendly automation.