Sign in to build your personalized learning path.
🔒 Local demo account — your name, email and a hashed password are stored only in this browser's local storage. There is no server; nothing is sent anywhere. Don't reuse a real password.
Tell us what you want to learn and why — get a personalized plan plus books, courses, articles, videos, podcasts and AI study tools to master it.
A rotating shelf of classics and essentials — refreshes every visit.
Live data, curated routing and AI — one account, every subject.
Books come straight from the Google Books and Open Library APIs, and article summaries from Wikipedia — fetched fresh on every search, nothing pre-baked.
A hand-maintained map of the best free learning platforms, podcasts and communities per field decides what you see: MDN for web dev, Khan Academy for math, JustinGuitar for guitar, and so on.
Add your purpose — exam prep, a career switch, a hobby project — and TopicHop's AI agent tailors a short personalized plan around it before you even open a result.
Bring your own Anthropic API key to generate roadmaps, quizzes, flashcards and cheat sheets on any topic, and hold a conversation with an AI persona of a great mind. Your key stays in your browser.
Star any book, site, article or video to keep it in your Saved list. It's stored in your browser, so your reading list is waiting next time you visit.
Every search updates the page URL, so you can bookmark a learning path or send the link to a friend and they'll land on the same results.
Not sure where to start? Pick a field and we'll build the path.
A curated mix of books, platforms, articles, videos, podcasts and communities. Click anything to open it — hit the ☆ to save it for later.
Live results merged from Google Books and Open Library, ranked by relevance.
Hand-picked platforms matched to your subject — specialized sources listed first.
Wikipedia overviews to build foundations, plus places to go deeper.
Curated video searches — full courses, beginner intros and talks.
Learn on the go — shows and audio courses you can follow during commutes and chores.
Where learners gather — ask questions, get feedback, and practice with others.
Turn any topic into a study plan, quiz, cheat sheet and more — generated on demand by Claude. Uses your own Anthropic API key (click 🔑 AI Key above).
Turn any subject into a structured, self-paced course — modules, lessons, quizzes and progress tracking, all generated by Claude. Uses your own Anthropic API key (click 🔑 AI Key above).
Sharpen your mind with quick educational games. Some run on any subject with Claude (needs your 🔑 AI key); the rest you can play instantly. Win to earn XP.
Meet Mr. G, TopicHop's friendly teaching mascot. Give him any subject and he'll teach you a clear, fun lesson — then stick around to answer your questions, just like a real class.
Chat with AI-recreated personas of history's great minds — simulated, not real, but built to think and talk like they did. Requires your own free Anthropic API key (click 🔑 AI Key above).
To chat with AI legends, TopicHop calls the Claude API directly from your browser using your own key. It's stored only in this browser's local storage and sent only to Anthropic — never to any other server. Get a key →
Unlock more recommendations, richer AI courses, and more capable models for Talk to a Legend.
🧪 Simulated billing for this demo — choosing a plan is instant and free, with no card and no real charge. It's here to show how paid tiers would work.
Earn XP by searching subjects, chatting with legends, generating study tools, and saving resources. Level up to unlock new avatars.