CoreTree: Recursive AI Concept Outliner for Papers & PDFs

Turn terms in papers & PDFs into a recursive knowledge tree. First-principles AI breakdowns, ELI5, local-first & Anki export.

CoreTree is an AI-powered recursive concept outliner designed for academic papers, PDFs, and deep reading. Transform dense terminology into a structured, hierarchical knowledge tree that builds lasting mental models. Key Features: 🌳 Recursive Concept Tree Outliner Select any unfamiliar term while reading to generate a structured concept card. Recursively branch child concepts infinitely underneath parent nodes to dissect complex theories from first principles. 💡 First-Principles Intuition & Academic Presets Choose from multiple tailored AI breakdown modes: • Canonical Definition: Rigorous domain definition, defining axioms, and significance. • First-Principles Intuition: Intuitive, plain-English breakdown with zero fluff. • Analogies & Micro-Examples: Real-world physical analogies and practical code snippets. • Comprehensive Deep Dive: Historical motivation, underlying mechanisms, and trade-offs. ⚡ Instant In-Place ELI5 Popups Overcome dense academic sentences and jargon on the spot without cluttering your persistent knowledge tree. Ephemeral and frictionless. 📄 Built-in Academic PDF Reader Powered by PDF.js with Retina Canvas and native text-layer selection. Drag and drop any local PDF paper or book to automatically anchor and persist its dedicated concept tree. 📇 One-Click Anki & Markdown Export Turn reading insights into long-term memory. Beautifully formatted math formulas (LaTeX / MathJax) and definitions export directly into standard Anki decks (.apkg / .txt) or Markdown files. 🔒 Privacy-First & BYOK (Bring Your Own Key) • 100% Local Storage: All notes, articles, and concept trees are stored offline in your browser's IndexedDB. • Custom AI Endpoints: Seamlessly connect to DeepSeek, OpenAI, Qwen, or local offline models via Ollama. -------------------------------------------------- Pricing & Editions: • Free Basic Edition: Core deep-reading breakdowns, built-in PDF viewer, 2-tier tree nesting, and custom API configurations. • Lifetime Pro Edition: Optional one-time upgrade unlocking infinite recursive nesting depth, instant ELI5 popups, 10 academic domain presets, and bulk Anki exports.