Cosminds is an innovative AI-powered productivity tool designed to solve a fundamental problem in learning: knowledge getting trapped inside isolated sources. Instead of forcing you to organize your notes by where they came from, Cosminds unifies books, PDFs, YouTube videos, articles, and personal notes into a single, cohesive library organized strictly by idea.

Built by solo founder Wojciech Sado and powered by Claude within the EU, Cosminds goes beyond simple storage. The platform actively extracts core claims from your materials and uses interactive drills to help you commit key concepts to memory. Additionally, its integrated AI Wiki answers your queries strictly using your own uploaded library—complete with citations—ensuring it never pulls unverified data from the wider web.

With a strong commitment to user privacy, your data is never sold or utilized to train external models. Users can get started for free without needing a credit card.

Pros of Cosminds

Organizes knowledge by idea rather than isolated sources (books, PDFs, YouTube, articles, notes)
Pulls out core claims and includes active recall drills to test and reinforce memory
AI Wiki answers queries exclusively from your uploaded content with clear citations
Stricter privacy standards: operates inside the EU, data is never sold, and user content is never used for model training
Free to start with no credit card required

Cons of Cosminds

Currently features a niche ecosystem built by a solo founder
May require adapting current note-taking and reading workflows to fit an idea-centric approach
Relies specifically on Claude infrastructure

Frequently Asked Questions

What types of sources can I organize in Cosminds?

You can combine books, PDFs, YouTube videos, articles, and personal notes into a single library.

How does the Cosminds AI Wiki work?

The AI Wiki answers questions exclusively based on the content you have put into your library, complete with citations, and never pulls answers from the web.