[musiccog]

I found FreeMind (a mind-mapping program) back before 2011, and have been using it as both a daily task tracking system as well as for project planning, and task mapping.

I have introduced many people to FreeMind, and the interesting thing is that the numbers have not changed over nearly 10 years: - 50% hate it and cannot grok it - 50% love it and have used it every day since

(link:http://freemind.sourceforge.net/wiki/index.php/Main_Page)

I suggest you use the 0.9.0 version as it has only crashed and destroyed a file once is nearly 10 years..

[blablabla123]

FreeMind is pretty nice but indeed quite niche.

Mindmeister is a good alternative for collaboration, it's modern and even has a freemium plan. (But of course vendor lock-in and less features...)