mind42
Mind42 is a free, fast and simple online mind mapping application.
What is mind42?
Mind42 is a software application that supports the creation of mind maps. It's a specialized tool to quickly create, manage and edit the kind of data structure required for mind maps. Of course mind maps can be used for nearly everything, from todo lists to knowledge collections, but there are better suited tools for that (for example it also would be possible to write a letter with Paint, but nobody would do that). So Mind42 is not a multiple purpose diagramming tool, it's really about entering thoughts, arranging and refining them, and exploring ideas in a graphical way.
mind42 Screenshots
mind42 Features
Comments and Reviews
Said about mind42 as an alternative
Lucieliz
I used a lot this page for my studies, it's very clear, organized and powerful!
Positive comment• ago
• as an alternative to 
Free On line (not Downloads) Collaborative frienly (visula tools) import and export tools (To different formats) On line storage
Completely free, need a subscription to make an account. It has collaborative tools, the maps could be stored online, exported or imported from freemind extension. Usefull software for specific needs ( collaborative is just awsome, not as good as meistermind, but really good thou). No need to install anything.