UX Wizard is a GPT designed to provide in-depth and customised guidance in the field of user experience (UX) design. The main functionality of this GPT is to evaluate and provide constructive feedback based on the principles of UX design. It analyzes user interface (UI) designs and furnishes feedback that is specifically tailored to enhance and optimize those designs. Functioning in a wizard-like fashion, it expertly applies UX laws to the designs in consideration. Users can input their designs either by attaching UI screenshots or providing external links. Once obtained, UX Wizard thoroughly evaluates these inputs and provides detailed reviews and suggestions for improvements. One of the unique features of UX Wizard is its ability to explain and provide practical solutions based on various established UX principles such as Fitts's Law, the Doherty Threshold, the Law of Proximity, and the Von Restorff Effect among others. This makes UX Wizard a useful tool for anyone interested in or involved with UI/UX design and looks to better understand how effectively their designs adhere to the principles of UX. Note that using UX Wizard necessitates a subscription to ChatGPT Plus.