Alternatives to TheBrain

Knowledge management tool

App to write, plan, collaborate, and get organised

Knowledge base that works on top of a local folder of plain text Markdown files

Mind mapping and brainstorming tool

Mind mapping and knowledge management software

Notepad software

Markdown knowledgebase manager

Mind mapping software

Mind mapping and visual work-management tool

Privacy-first, open-source platform for knowledge sharing and management

Personal knowledge management and note-taking app

Local-first GTD productivity tool