Glasp is a software development tool designed for creating graphical user interfaces (GUIs) for web applications. It uses a declarative approach to define UI components using HTML, CSS, and JavaScript. Glasp provides a simple and intuitive syntax for creating components, and supports custom styling and theming. It also integrates with popular front-end frameworks like React and Vue.js. Glasp aims to simplify the process of building complex web UIs and enable developers to create responsive and accessible designs with ease.