Notekeys
Description: Notekeys is a free and open-source note taking and organization software. It allows users to take notes, organize them into notebooks and categories, link notes together, attach files, and search through all their notes quickly.
Type: software
Pricing: Open Source
Trilium Notes
Description: Trilium Notes is an open-source hierarchical note taking application focused on building large personal knowledge bases. It has a tree-structured notes system allowing easy organization of ideas and supports features like linking between notes, embedding media, tagging, encryption, etc.
Type: software
Pricing: Open Source