XMind is an open source mind mapping tool that can be used to clarify thinking, manage complex information, run brainstorming and get work organized. It offers a library of ready-to-use templates that include flow chart, to-do list, project management, timeline, decision making, matrix and more. Of course you can also design your own mind map by starting with a blank template.You can annotate your mind maps with labels, relationship markers, boundaries, summary information and personal notes. The design process is straight forward by using a drag and drop to arrange and add your items to the map.Other features include support for file attachments, images and hyperlinks, as well as color themes, spell checking, local network sharing and more.Your finished mind map can be saved as project and exported to HTML, text or image format.The free version also includes some of the Pro features on a trial basis. The Pro version offers additional features and more export options. Pro featues are marked with [Pro] in the tool menus.