Anki-Mindmap is an addon for the spaced repetition flashcard app Anki that allows you to create mindmaps/graphs/visualizations out of tag hierarchies.

This addon needs graphviz to be installed and to be on the PATH. Make sure to check "Add to path for all users" during installation.

The easiest way to install Anki-Mindmap is through AnkiWeb.

Drawing of mindmaps is done using https://github.com/Lucas-C/brain_dump