For an individual, I used to use WikidPad and quite like it. Source: about 1 year ago

There also are "serverless" wikis, like http://tiddlywiki.com/ (can be run as a standalone desktop app - see in the bottom, or Wiki on a Stick, or WikiPad. Source: about 1 year ago

Wikidpad is quite functional. It's not the prettiest but it does its job. I don't know if or how you can implement images. But it's free and maybe worth a try. Source: over 1 year ago

Is it this one? http://wikidpad.sourceforge.net/ Also is it on mobile, and does it support images? Source: almost 2 years ago

If your work is not published its very likely to be removed by a mod on Wikipedia, but when it comes to organizing your world, a personal wiki is by far the best way to do so. There are lots of tools out there, both free and premium. I would recommend doing some research on all of the suggestions in this thread and find what works for you. Wikidpad is a free desktop wiki that's super handy when you just want to... Source: almost 2 years ago

There is a tool that was presented here, that looks like Ayoa: Octopus. Source: 11 months ago

Hi! I would just like to let you know that the IOctopus mind maps have made it possible to get free access for teachers, students and other educators. So if you are in education and have been looking for a awesome free online service, welcome you to try it! https://ioctopus.online/. Source: about 1 year ago

Hi, IOctopus has a free plan, it is nice service and allows you to share links to the map, embed an interactive map on your website and there is export to images. Source: about 2 years ago

Hi, check out IOctopus.online. It works on all devices, as it is an online service. There is a free plan, and there are inexpensive paid extended versions. Source: over 2 years ago

Try IOctopus https://ioctopus.online/ , it has flexible organic branches-tentacles, maybe what you're looking for. Source: over 2 years ago