ThinkEx is a visual thinking environment where you bring your sources — PDFs, YouTube videos, audio files, websites, and notes — onto a single canvas, then work alongside AI that sees exactly what you point it to. Most tools split thinking from AI. Chat interfaces reset every conversation. Note apps bolt AI on as an afterthought. ThinkEx keeps your sources, reasoning, and AI in one place so knowledge compounds instead of disappearing.Documentation Index
Fetch the complete documentation index at: https://docs.thinkex.app/llms.txt
Use this file to discover all available pages before exploring further.
Key features
Adding content
Place PDFs, YouTube videos, audio files, images, and websites on your canvas as cards.
AI chat
Select exactly which cards the AI reasons over. No opaque retrieval — you control the context.
Flashcards and quizzes
Generate study materials directly from content in your workspace and save them as persistent cards.
Sharing and collaboration
Share workspaces or invite collaborators with viewer, editor, or admin permissions.
Why ThinkEx
Most AI and note-taking tools make a trade-off that costs you:| Approach | Examples | What you lose |
|---|---|---|
| Chat-first | ChatGPT, Gemini, Claude | Insights vanish into scroll. Context resets every conversation. |
| Notes-first | Notion, Obsidian | AI is isolated from your actual information. |
| Retrieval-first | NotebookLM | Sources are hidden behind the interface. You can’t see or work with them directly. |
How it works
Create a workspace
Start from a blank canvas or use the Getting Started template, which includes sample cards to orient you.
Add your sources
Upload PDFs, paste YouTube links, add websites, record audio, or write notes. Each source becomes a card you can arrange spatially.
Select context and ask
Click to select the cards you want the AI to work with, then ask your question. The AI reasons only over what you’ve chosen.
Ready to begin?
Quick start
Create your first workspace and start thinking in minutes.
Self-hosting
Run ThinkEx on your own infrastructure with full control over your data.