Team-One - Team-One is more than messaging; it’s teamwork made simple.
EagleData - Freeware database for Mac
Keeeb - Keeeb unleashes knowledge that the corporate enterprise didn't know it had. We connect existing information islands while optimizing the discovery process with a novel workflow, and automate knowledge discovery through artificial intelligence.
Zim Wiki - Zim is a graphical text editor used to maintain a collection of wiki pages. Each page can contain links to other pages, simple formatting and images.
Wult.io - Accessible self serve data governance
CherryTree - A hierarchical note taking application, featuring rich text and syntax highlighting, storing data in a single xml or sqlite file.