Live chat tools are invaluable for enhancing user experience, increasing sales conversion rates, and boosting customer confidence on websites or applications, with the use of real-time chat SDKs like PubNub offering a tailored solution for customer support needs. This tutorial provides a comprehensive guide to building a live chat widget and dashboard using React components, emphasizing flexibility and customization. The modular nature of the Live Support Chat Kit allows users to enable or disable components and modify CSS to fit specific requirements. By integrating open-source React chat components with PubNub, developers can easily implement features such as presence indicators, reliable messaging delivery, and mobile push notifications, ensuring a seamless communication experience. The tutorial details setting up the necessary development environment, including Node.js and Git, and configuring the backend with PubNub API keys. It also outlines the structure and functionality of support chat components like the Support Agent Dashboard and Customer Chat Widget, demonstrating how these components work together to facilitate real-time conversations. The guide highlights the ease of customizing these components and suggests additional features such as sending images and files, unread message counts, and user authentication to further enhance the chat application.