Free & Open Source
Text Summary
Generate chapter-by-chapter summaries, analyze how chapters connect, and get an overall synthesis of the entire book.
Chapter Mind Maps
Each chapter becomes its own interactive mind map. Perfect for study notes or in-depth review.
Full Book Mind Map
Collapse an entire book into one unified mind map. See the big picture at a glance.
EPUB & PDF Support
Handles both major ebook formats. PDF chapter detection works via table of contents or AI-powered smart detection.
Multi-Provider AI
Choose Google Gemini, OpenAI, or any compatible provider. Bring your own key for full control.
Smart Caching
AI results are cached automatically. Resume interrupted sessions without re-processing a single chapter.
100% Local Processing
All AI requests go directly from your browser to the AI provider. Nothing passes through a third-party server.
Upload Your Book
Drop in any EPUB or PDF file. The app parses the structure and lists all chapters.
Configure AI
Add your API key for Google Gemini or OpenAI. One-time setup, stored locally in your browser.
Choose a Mode
Select text summary, per-chapter maps, or a single full-book mind map — whatever fits your goal.
Explore the Result
Interactive mind maps you can zoom, drag, expand, and export. Or read through the AI summaries.
Your Books Stay Private
We never see your files or your content. All AI requests are made directly from your browser to the AI provider of your choice. No proxy, no middleman, no logging.