Work in progress — actively being developed

Study smarter,
not linearly

A minimal, distraction-free tool for studying papers and learning new concepts. Branch into any part of an AI response, explore deeply, and come back.

View on GitHub Get Started
Study Tool screenshot

Why a tree, not a list?

🌿

Branch from any text

Select any part of an AI response and branch into it. Full context is preserved up to that point.

📄

Upload PDFs

Drop a paper in and start asking questions. Full text is extracted and sent as context.

✅

Mark what you've read

Hover over any paragraph and mark it as read. Build up a map of what you've internalized.

🗺️

Knowledge map

Everything you've marked as read is organized into a structured view — grouped by topic.

🔀

Merge branches

Select multiple branch endpoints and merge them into a coherent summary.

🔒

Fully local

No accounts, no cloud, no telemetry. Everything runs on your machine.

Get Started

# Clone
git clone https://github.com/landywei/study-tool.git
cd study-tool

# Install
npm install

# Configure
echo "OPENROUTER_API_KEY=your-key-here" > server/.env
echo "PORT=3001" >> server/.env

# Run
npm run dev

Open localhost:5173. You'll need an OpenRouter API key. Any model works.