React Expert is a Generative Pre-training Transformer (GPT) designed to provide advice, assist and offer solutions about React JS development. With deep knowledge in the subject matter, this tool is like an on-demand software development expert specializing in the JavaScript library, React JS. The primary purpose of the tool is to address users' development challenges, ranging from optimizing React app's performance to explaining complex topics like React hooks. The tool is especially useful when a user runs into obstacles with React routing or needs guidance on the best practices for state management in React. The GPT is conveniently accessible for both novice and advanced developers seeking to augment their React JS skills. Powered by ChatGPT, the React Expert tool welcomes users and engages them by prompting topic starters to get the conversation going. Be it problem-solving, offering detailed explanations or discussing development practices, the tool aims to foster a conducive and interactive learning environment for its users.React Expert requires ChatGPT Plus for access and offers to sign up for users not already onboard. Overall, with the React Expert GPT, users can expect a rich learning experience and assistance customized to their development needs, broadening their React JS expertise.