Prelegal

AI-powered legal document drafting platform. Users register, chat with an AI assistant to fill in document details, preview the rendered document live, and download it as a PDF.

Features

• 12 document types — Mutual NDA, CSA, DPA, BAA, PSA, SLA, and more
• AI chat — conversational form-filling via OpenRouter (GPT-o1/Cerebras)
• Live preview — document renders in real time as fields are filled
• Document history — signed-in users can view and resume all prior drafts
• PDF export — window.print() with CSS @media print
• Auth — email + password (PBKDF2-SHA256), signed session cookies

Note: The database is temporary and resets on each container restart. Documents are draft only and subject to legal review.

Running

Requires Docker. Copy .env.example to .env and set OPENROUTER_API_KEY.

# Linux
scripts/start-linux.sh
scripts/stop-linux.sh

# Mac
scripts/start-mac.sh
scripts/stop-mac.sh

# Windows
scripts/start-windows.ps1
scripts/stop-windows.ps1

App runs at http://localhost:8000.

Development

Backend (FastAPI, Python 3.14, uv):

cd backend
uv run uvicorn app.main:app --reload
uv run pytest

Frontend (Next.js 16, static export):

cd frontend
npm install
npm run dev   # dev server at :3000
npm run build # static export to out/
npm test

Tech Stack

Layer	Technology
Backend	FastAPI, SQLite, itsdangerous
Frontend	Next.js 16 (static export), Tailwind CSS
AI	LiteLLM → OpenRouter → openai/gpt-oss-120b (Cerebras)
Container	Docker Compose