Logseq

Logseq is an open-source alternative to Obsidian, Notion, Google Keep, and Tana. It’s a privacy-focused knowledge base and outliner that enables users to build interconnected knowledge graphs for note-taking, task management, and personal knowledge management. With support for markdown, offline access, and robust linking between notes, Logseq empowers users to organize and navigate their ideas intuitively while keeping full control over their data.

Key features include:

• Outlining: Logseq uses an outlining format for structuring notes and thoughts.
• Bi-directional Linking: Easily create links between different notes and pages to build a knowledge graph.
• Graph Visualization: Visualize the connections between your notes.
• Task Management: Manage tasks directly within your notes.
• Open Source & Privacy-Focused: Your data is stored locally and you have full control over it.
• Plugin Ecosystem: Extend Logseq's functionality with plugins.

Use cases:

• Personal knowledge management
• Note-taking and idea organization
• Project planning and task management
• Building a personal wiki
• Research and learning