17
Looking for journaling apps
(beehaw.org)
If it's free and open source and it's also software, it can be discussed here. Subcommunity of Technology.
This community's icon was made by Aaron Schneider, under the CC-BY-NC-SA 4.0 license.
It has full E2EE, the files are encrypted on your own system and whatever server you use.
edit: you just have to explicitly set it up using your own chosen keyphrase.