It is written in Java so it works on various platforms wherever you have the runtime which is another benefit.

since it looks really professional and clean, has adequate tagging options and allows you to have multiple maps. The app is really great for making mind maps, especially if you are doing it as the planning or ideation tool, and not as a child doing a homework etc.

which is really an advantage over the online mindmaps. Furthermore, it does not ask to open any accounts, you can have unlimited number of maps, etc. And since the app is free, works on various platforms and is easy to use, with clean interface it makes it easy to do mindmapping on the same file together. Recently I have been using online mindmaps for some of these, as I usually share some of the maps with other colleagues/clients, but actually if you combine Freemind with OneDrive or Drobpox and just put the mm file in the folder that you share with the client/colleague you get the same result. I used to do all my mindmaps in Freemind and also to track the progress of some projects (not on daily basis as a to-do list, but for tracking deliverables, milestones, making sure something is not forgotten or missed).

Comments: I use a lot of mindmapping in my work for planning and ideation, especially when developing new projects/products with education non-profits.

Open source mind mapping software