Private Wiki

a Wiki run to be written-to and read-by a single individual. See WikiTypes. As of 2020, also referring to this as an Inner Garden.

a NoteBook - aka Private Wiki Notebook

• see my wiki ebook Hack Your Life With A Private Wiki Notebook Getting Things Done And Other Systems - in the "Picking A Wiki For Your Private Notebook" section I recommended TiddlySpace, but that's gone, so recommending Roam and Chris Dent's TankWiki.
• WikiWikiWeb:WikiJournaling

A person might have both a Private Wiki and a PersonalWiki/WikiLog (Multiple Thinking Spaces; Tending Your Inner And Outer Digital Gardens), and pages might float between them. Actually, if I start a page in my PrivateWiki, then decide to make it public, I generally

• cut/paste to public page (assuming want the same name)
• leave the private page for private notes associated with the idea - sometimes I leave the whole copy of the public page, and insert private notes above it, other times I leave only the private notes
• have TwinPages linking from private to public

some WikiEngines tuned for this

• I use my WikiFlux engine for both my WikiLog and PrivateWiki
• I used to use PikiPiki - no security features, but that's ok since I just ran it on my Laptop. I used to use SimpleNote to Data Synch to my Android Tablet, but ran into bugs in that, so switched to Drop Box (synching to my Android phone not tablet).
  • 2020: Converting PrivateWiki From Piki To Wikiflux
  • Back in the day I ran it as Wiki on Zaurus and then Wiki on N810
• OWL (which has replaced SdiDesk)
• PimKi http://pimki.rubyforge.org/
• see WikiWikiWeb:PersonalWiki
• here's a Wiki Matrix search which concludes with Bolt Wire, Docu Wiki, and Pm Wiki, partially because I limited it to PHP-based engines which are cheapest/easiest to install on a Hosted Server. You can change that or the other criteria.
  • hmm I wonder how easy it is to make a Wikity private?

Or maybe consider a Desktop Wiki