Linked Ideas - A macOS/iOS apps to treat ideas as links of concepts.

Monkkee - Keep a private journal securely on the Internet – to provide a convenient user experience your...

Freeplane - Freeplane is a powerful and free software for building mind maps.

The Guide - The Guide is a two-pane outliner - a program that allows you to arrange text notes in a tree-like...

vym - VYM (View Your Mind) is a tool to generate and manipulate maps which show your thoughts.

Scrapbox - A new style of note-taking that lets you create, discuss, and learn together in one self-organizing space.