Logseq is a local-first, non-linear, outliner notebook for organizing and sharing your personal knowledge base.

experts Open Source free

A note-taking tool for networked thought.

experts

Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, tagged and modified either from the applications directly or from your own text editor. .

nominated Open Source free