MindPane is a Chrome extension that visualizes the web page you are reading as a Mind Map, where you can quickly get the main structure of the document, and easily navigate through topics.
Choose your favorite Mind Map style from the 16 built-in themes on the sidebar. Save the Mind Map as a high quality PNG image whenever you want.
Depending on your taste, you can choose one of the 8 built-in Mind Map layouts from the side bar.