cherrytree - Guispen
Quivr - Get a Second Brain with Generative AI
Quivr is your second brain in the cloud, designed to easily store and retrieve unstructured information.
Notesnook - zero-knowledge private notes
Express yourself with freedom, no spying, no tracking — only private notes. Unlike Evernote and other note apps, your data is private — not open for everyone to see.
AppFlowy.io
AppFlowy is an open source alternative to Notion. You are in charge of your data and customizations.
tiddlyroam
Your open source external brain
Logseq - open-source knowledge base
A privacy-first, open-source platform for knowledge management and collaboration.