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Joplin

42640 stars

Joplin is an open source note-taking app to capture your thoughts and securely access them from any device. You can take notes, make to-do lists and sync notes across devices by linking it with cloud services like Dropbox. The synchronization is protected with end to end encryption.

Boost Note

3673 stars

Boost Note is an open-source, collaborative real-time markdown note app for developer teams.

Athens

6323 stars

Athens is a knowledge graph for research and notetaking. Athens is open-source, private, extensible, and community-driven.