Tip: Dreamweaver is a website builder for Windows & Mac by Macromedia. It is a sophisticated program for designing web pages that is noted for many advanced features, including the "Roundtrip" capability which lets you seamlessly move back and forth and make changes in both the visual mode and HTML mode. Macromedia Dreamweaver was originally targeted at professional web designers and offers an editing system that combines both the productivity of WYSIWYG design with the control of HTML editing mode. available for Mac and Windows.