LanguageGUI is an open-source design system and UI Kit that empowers developers to enhance the text outputs of large language models (LLMs) with visually rich graphical user interfaces. With LanguageGUI, you can easily transform standard text into engaging and interactive formats, making it simpler to create applications that are not only functional but also visually appealing. Whether you're building chatbots, educational tools, or any other application that utilizes LLMs, LanguageGUI provides the flexibility and resources you need to elevate your user experience.