I'd like to create a mindmap of textboxes connected by branches.
I'd like some of these textboxes to be 'collapsible', i.e. there is some sort of interactive element/ button that I can press to expand a textbox, to show more text.
I'd then like to publish this mindmap so it is accessible to other users (online or offline, it doesn't matter), but with the interactive elements remaining interactive to those other users.
Can anyone recommend a free software that can meet these requirements? It could be online or offline, but should be able to run on Windows machines.