PDF Chat App

This is a local chat app for querying PDFs using embeddings and a language model.

Backend

We use FastAPI for the backend service. To set up:

cd backend
uv venv
uv pip install -r requirements.txt
uvicorn main:app --reload --host 0.0.0.0 --port 8000

The API docs are available at http://localhost:8000/docs.

Frontend

We use Vite + React + TypeScript + Tailwind CSS + shadcn UI.

cd frontend
pnpm i
pnpm run dev

Open http://localhost:5173 in your browser.

Features

• Upload PDFs to index their content.
• Semantic search over documents.
• Streaming chat responses via SSE.
• Persistent chat history and attachments.