laurent22
Joplin - the privacy-focused note taking app with sync capabilities for Windows, macOS, Linux, Android and iOS.
siyuan-note
A privacy-first, self-hosted, fully open source personal knowledge management software, written in typescript and golang.
TriliumNext
Build your personal knowledge base with Trilium Notes
streetwriters
A fully open source & end-to-end encrypted note taking alternative to Evernote.