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Cosminds
Organize what you learn by idea, not by source
Everything you learn stays trapped in the source it came from, so you forget it. Cosminds organizes what you read and watch by idea, not by source: books, PDFs, YouTube, articles and notes become one library. It pulls out the claims, drills you until you can write them back from memory, and its AI Wiki answers only from what you put in, with citations, never from the web. Runs on Claude inside the EU. Never sold, never used to train anything. Free to start, no card.
Hi Product Hunt, I'm Wojtek, the solo maker of Cosminds.
I read a lot. Or I told myself I did. The honest version: I'd finish a book, feel smart for a week, then forget almost everything. Not the general idea, the specific arguments, the facts, the lines I underlined because they mattered to me. I spent a year on books about addiction and behavioral science, Never Enough, Predictably Irrational, Sapiens, and when someone challenged me on it, I had nothing. I knew I'd known it once. That was all.
That's the problem. You read a lot and it scatters by source: this book, that video, a dozen articles. One idea ends up in twenty places and you never find it again.
Cosminds organizes what you read and watch by idea, not by source, and then makes you remember it:
• Feed it books, PDFs, YouTube, articles, your own notes. It pulls out the specific claims and groups every source that touched one idea together.
• It drills you until you can write the idea back from memory, and an AI coach grades the meaning, not the exact words.
• Its AI Wiki answers only from your own library, with the source cited. When you haven't read about something, it says so instead of guessing from the internet.
I started building it in February this year, for myself. Five months later it's live. The thing I got clearer on the whole way through: a summary from the internet misses the point. What you want back is your own highlights and notes, the things that were important to you, not a generic AI answer.
Who it's for: people who read or watch a lot and are tired of forgetting it.
It's early and I'm solo, so I'd rather hear what's broken than what's polished. Free to start, no card. For Product Hunt, the code PRODUCTHUNT takes 50% off Pro or Scholar for 3 months.
What I'd love to know: what's the first thing you'd forge, and where does it break for you?
Wojtek
About Cosminds on Product Hunt
“Organize what you learn by idea, not by source”
Cosminds was submitted on Product Hunt and earned 8 upvotes and 1 comments, placing #42 on the daily leaderboard. Everything you learn stays trapped in the source it came from, so you forget it. Cosminds organizes what you read and watch by idea, not by source: books, PDFs, YouTube, articles and notes become one library. It pulls out the claims, drills you until you can write them back from memory, and its AI Wiki answers only from what you put in, with citations, never from the web. Runs on Claude inside the EU. Never sold, never used to train anything. Free to start, no card.
On the analytics side, Cosminds competes within Productivity and Artificial Intelligence — topics that collectively have 1.1M followers on Product Hunt. The dashboard above tracks how Cosminds performed against the three products that launched closest to it on the same day.
Who hunted Cosminds?
Cosminds was hunted by Wojciech Sado. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Cosminds including community comment highlights and product details, visit the product overview.