Adobe Dreamweaver is a web development tool developed by Adobe Inc. It is an Integrated Development Environment or IDE and it allows users to write code as well as view frontend changes directly from the app. In Closing. As you can see Dreamweaver is an incredibly flexible website builder. With it's easy to use user interface, and built-in code editor you can build any kind of website you desire. Since it's such a versatile tool it's commonly used by beginners, all the way up to advanced web developers.