The revamped LambdaTest UnderPass Tunnel desktop application simplifies the process of testing locally hosted web applications by establishing a Secure Shell (SSH) connection between a user's computer and cloud servers, enabling testing across over 3000 browsers without terminal commands. The latest version introduces multiple tunnel management for simultaneous testing across different environments, advanced configurations for tailored setups, streamlined log sharing for quicker issue resolution, and enhanced login flexibility with various authentication methods. Additionally, the application features a revamped user interface for smoother navigation, support for testing sites with self-signed certificates, and proxy configuration options, all designed to maximize user productivity and cater to both basic and complex testing needs.