Dreamweaver is a web development tool created by Adobe that allows users to design, code, and manage websites visually. It provides a user-friendly interface where developers can drag and drop elements, making it easier to create responsive layouts without extensive coding knowledge. The software supports various web technologies, including HTML, CSS, and JavaScript, enabling users to build dynamic websites. With features like code hinting and site management tools, Dreamweaver caters to both beginners and experienced developers, streamlining the web design process.