Eigen
Eigen is a free, AI-native workspace that unifies documents, projects, boards, meetings, and tasks into a single platform. It positions itself as a team's second brain, pulling notes, files, links, and conversations into one shared workspace so knowledge is no longer scattered across sticky notes, browser tabs, and buried threads. The platform includes a canvas view, notebooks, calendar and task management, and an integrated AI assistant, with end-to-end encryption for documents and chats. Eigen's AI layer is context-aware: workspaces connect directly to files and project resources, so AI responses are grounded in the user's own content rather than generic internet guesses. Users can switch between multiple AI models depending on the task—fast answers, deep research, or long-form writing—without needing prompt engineering. The home view combines tasks and calendar with AI-generated daily briefings that highlight what is due, overdue, and most important. Eigen is designed for students, researchers, startups, and freelancers. Students can turn lecture notes and PDFs into study guides; researchers can compare papers and summarize methodology; startups can condense customer calls and market reports into decisions; freelancers can maintain client-specific knowledge bases. The product is available as a hosted SaaS offering with a free tier and no credit card required to start.
- Category
- AI/ML
- Pricing
- Free
Problem solved
Eigen solves the problem of fragmented knowledge and scattered productivity tools by unifying documents, projects, boards, meetings, and tasks in one AI-native workspace. It gives teams and individuals a shared second brain where AI answers are grounded in their own context, and it connects knowledge to action through unified task and calendar views with AI-generated daily briefings.
Use cases
- Build a team second brain from notes, files, links, and conversations
- Switch between specialized AI models for quick answers, deep research, or long-form writing
- Generate daily briefings from tasks and calendar to prioritize due and overdue work
- Turn lecture notes and PDFs into study guides and revision paths
- Compare research papers and summarize methodology with source-grounded answers
- Condense customer calls, market reports, and pitch notes into startup decisions
- Maintain a client-specific knowledge base for freelancers and extract insights for new briefs
Audience
- Business Users
- Startups
- Researchers
- Product Managers
- Enterprise
Pros
- Unifies documents, tasks, calendar, and AI in one workspace
- Context-aware AI grounded in user files and project resources
- Multiple AI models switchable by task without prompt engineering
- End-to-end encryption for documents and chats
- Free to start, no credit card required
Cons
- Newer and less established than mature productivity suites
- Limited public information about integrations and enterprise controls
- Proprietary platform may create vendor lock-in
- Pricing details beyond the free tier are not fully described on the homepage
- No offline desktop app or self-hosted option mentioned
Official website: https://eigen.so/
Canonical LambdaBase page: https://www.lambdabase.com/tools/eigen