The WhatPlugin.ai tool improves the user experience of ChatGPT Plugins by offering a more user-friendly interface. It allows users to explore and navigate through 200 Plugins in a more organized way. The tool enables users to easily find Plugins of interest by selecting specific categories or conducting keyword searches. Users can also mark their favorite Plugins to prioritize and highlight the most useful ones. This enhanced interface aims to make ChatGPT Plugins more usable and accessible for users.