Are.na is a platform for connecting ideas and building knowledge.

Lightning fast capture, always-on search, and the easiest way to share knowledge — all in one place. As simple as Apple Notes. As powerful as a collaborative, graph database.

Reflect keeps track of your thoughts, books, and meetings.

Kinopio is your spatial thinking tool for new ideas and hard problems.

The Agora is a crowdsourced distributed knowledge graph: anagora.org.

Organize your thinking. Master your craft. Grow your knowledge.

Milanote is an easy-to-use tool to organize your ideas and projects into visual boards. Add notes, images, links and files, organize them visually and share them with your team.

https://jotterpad.app/

The most beautiful note taking app across devices.