Software development relies heavily on testing and debugging to ensure product quality and stability, with tools like LambdaTest streamlining these processes. Testing verifies software functionality and can be manual or automated, while debugging involves developers fixing issues identified during testing. Cross-browser testing is crucial for ensuring consistent website performance across different browsers and devices, a task made more manageable by LambdaTest's platform, which offers features like live browser testing, mobile support, visual testing, and an inbuilt issue tracker. LambdaTest also facilitates debugging by providing developer tools and emulators for both mobile and desktop environments, enhancing the efficiency and effectiveness of the software development life cycle.