AFFiNE vs flatnotes

AFFiNE is an open-source knowledge management application that combines documents, whiteboards, and databases in a unified workspace. It operates as a local-first application with optional cloud sync and end-to-end encryption. AFFiNE supports both block-based document editing and freeform canvas-style edgeless editing.

flatnotes is a note-taking tool that self-hosted markdown note-taking app that stores notes as plain files with no database required. It is open source software.