

Navigate knowledge network to efficiently learn and discover new ideas.
Write in groups, large or small, with no conflicts. Featuring personal drafts, LaTeX support for math and instant preview.


All changes are automatically saved in History.
Give and receive feedback, track document changes and user activity.


Build and navigate flexible content hierarchies for easy sharing and learning.
Export your content for off-line use or conversion into conventional journal articles.


Connect your private knowledge graphs (private trees) to the public hierarchy to gain global visibility.
Connect Claude Desktop, Cursor, Claude Code, ChatGPT, and other AI assistants directly to your knowledge graph via MCP. Your tools can read, search, and write nodes in your private trees using your API token.
To see Knowen in action visit quick-start tutorial "Welcome to Knowen!"
Knowen is an experiment in progress that is being designed to organize, preserve, and expand human knowledge - placing it in a hierarchical knowledge base (graph) that makes it readily available to learners of all backgrounds and ages.
The rate of scientific and engineering innovation is rapidly increasing. With the advent of the Internet and powerful search engines, millions of research articles are accessible within seconds from anywhere in the world. Despite this, because of the complexity of a typical journal article and the redundancy among these, it is often as difficult today as it was 50 or 100 years ago to find a particularly relevant and verified piece of knowledge.
Knowen addresses this problem by:
Because it can grow and preserve the tree of human knowledge, Knowen can serve as a global clearinghouse for existing knowledge and emergent ideas. Existing content can be placed into a developing Knowen hierarchy of knowledge; new content can emerge directly within it, while connections can be established or reshaped as new information, or better understanding, emerges.
Yes — Free has no time limit and requires no credit card.
During open beta, Free includes 500 private nodes, 1 GB of storage, and 1,000 node creations and updates per day.
Join during beta to keep the 500-private-node allowance on Free after beta. The daily allowance will return to 100 creations and updates. New accounts after beta will receive 50 private nodes and 100 creations and updates per day.
Paid plans with expanded limits will become available after beta. We will announce the end of beta in advance.
Reading and contributing to the public graph will always be free. There is no lifetime node cap, but daily creation and update limits apply.
Limits help cover the cost of storage and compute. Reaching a limit does not delete your content: reading and exporting remain available. Daily creation and update limits reset at midnight UTC.
No, all created content can be exported at any time. This is also a useful feature if you simply want to peruse the content off-line or share with others.
The goal is to provide a convenient platform for conducting research and sharing information.
Yes, we use Amazon servers for attachment and content storage. It's a highly reliable provider, with very little chance of information loss and downtime.
No.
Yes, it is. Please contact us for details.
Registration is by invitation only while we are in beta testing.