Legal AI Document Analyzer

A MERN stack application that uses Generative AI to simplify and analyze legal documents for everyday users.

🚀 Current Status

✅ Frontend: React app running on http://localhost:5173
✅ Backend: Express server running on http://localhost:5000
✅ Firebase: Project plain-text-legal fully configured
✅ AI Engine: Google Gemini Pro integrated ✅ Authentication: Ready for use

🎯 SETUP COMPLETE!

Your Legal AI Document Analyzer is now fully configured and ready to use!

✅ What's Working

• Document Upload: PDF, DOCX, DOC, TXT file processing
• Plain Language Translation: Convert legal jargon to simple English
• Risk Analysis: Color-coded clause highlighting
• Fairness Scoring: Contract balance assessment (0-10 scale)
• AI Chat: Ask questions about your documents
• User Authentication: Google Sign-in and email/password

🔧 Final Steps to Complete

1. Enable Firebase Authentication:

   • Go to Firebase Console
   • Authentication → Sign-in method
   • Enable "Email/Password" and "Google" providers

2. Create Firestore Database:

   • Go to Firestore Database → Create database
   • Start in "test mode" for development

🚀 Start Using the Application

# Both servers are already running!
# Frontend: http://localhost:5173
# Backend API: http://localhost:5000

Click the preview browser button above to start using your Legal AI Document Analyzer!

Features

• Plain Language Translator: Convert complex legal clauses into plain English
• Conversational Legal Assistant: Chat with your contract using RAG
• Risk & Obligation Highlighter: Color-coded clause analysis
• Multilingual Legal Aid: Document translation
• Fairness Score Generator: Contract balance analysis

Tech Stack

• Frontend: React.js with Vite
• Backend: Node.js + Express.js
• Database: Firebase
• Authentication: Firebase Auth
• AI: Google Gemini Pro for text processing and analysis

Getting Started

1. Clone the repository
2. Install dependencies: npm run install-all
3. Set up Firebase configuration
4. Set up environment variables
5. Start the development server: npm run dev

Project Structure

legal-ai-analyzer/
├── frontend/          # React.js frontend
├── backend/           # Node.js + Express.js backend
├── shared/           # Shared utilities and types
└── docs/             # Documentation

Environment Variables

Create .env files in both frontend and backend directories with the required configuration.

For the frontend, you can use the .env.example file as a template. Key variables include:

• VITE_API_URL: Backend URL for local development (defaults to http://localhost:5000)
• VITE_BACKEND_URL: Backend URL for production deployments (used in Render)

Example frontend .env:

VITE_API_URL=http://localhost:5000
VITE_BACKEND_URL=https://legal-backend-96zq.onrender.com

For Render deployment, you should set the VITE_BACKEND_URL environment variable in the Render dashboard to your backend URL.

Node.js Version

This project is configured to use Node.js version 20.18.0. You can find the version specification in the .nvmrc files in both the root directory and the frontend directory.

To use this version with nvm:

nvm use

Deployment

Frontend Deployment (Render)

To deploy the frontend to Render:

1. Connect your GitHub repository to Render
2. Select the "Web Service" type
3. Specify the root directory as frontend
4. Set the build command to: rm -rf frontend/node_modules frontend/package-lock.json && cd frontend && npm install --legacy-peer-deps && npm run build
5. Set the publish directory to: frontend/dist
6. Set the Node.js version to: 20.18.0
7. Add environment variables as needed

Alternatively, you can use the provided render.yaml file which contains the deployment configuration.

Backend Deployment

For backend deployment, you would need to set up a separate Render service for the backend Node.js application.

Clean Installation

If you encounter dependency issues during deployment (especially with Rollup modules), the deployment process now includes a clean installation step that removes node_modules and package-lock.json before installing dependencies. This ensures that all dependencies are installed fresh without any cached or conflicting modules.

Firebase Troubleshooting

If you encounter a Firebase "auth/unauthorized-domain" error after deployment:

1. Navigate to your deployed application and go to /firebase-test to see domain information
2. Copy your domain from the test page
3. Go to Firebase Console → Authentication → Settings
4. Add your domain to the "Authorized domains" list
5. Save and redeploy your application

You can also run the domain finder script:

node find-render-domain.js