It has a simple interface as its development is more focused toward functionalities.
FreeMind is built around Java technology, so it requires Java Runtime Environment to be able to run.
Features and Highlights
A mind map can help you think clearer.

A mind map itself is basically a diagram made up of pieces of information that are connected together.
Each piece is called a node and the lines that connect the nodes are called edges.
There are multiple ways to unfold and fold a node that you might choose depending on what you need.

Other information elements it’s possible for you to add are notes, graphical links, and icons.
It can search the entire map or search only a node and its descendants.
Furthermore, the search function supports quotation marks to find specific words.
To start creating a mind map, you could directly edit the central node in a new document.
Every new document contains a central node by default.
Everything that it’s crucial that you create a mind map is accessible from the context menu.
In the context menu, nearly every command is listed along with its keyboard shortcut.
For commands that you use heavily, you might use the shortcuts instead to access them more quickly.
It is fortunate that the developers include a comprehensive user guide that can be accessed from the Help menu.
All in all, FreeMind packs a good punch behind its humble appearance.