📚 NoteNexus – AI Powered Notes Generator

NoteNexus is an AI-powered platform that helps students generate structured, exam-ready notes instantly using artificial intelligence. Users can create topic-wise notes with diagrams, charts, revision modes, and exam-focused formatting to make studying faster and smarter.

---

🚀 Features

✨ AI Note Generation Generate detailed notes for any topic instantly.

📊 Diagrams & Charts Support Automatically include visual elements to improve understanding.

🧠 Exam-Focused Answers Notes are optimized for university exams and quick revisions.

⚡ Revision Mode Generate short and concise revision notes.

💳 Credits-Based System Users purchase credits to generate AI notes.

🔐 Secure Authentication Login using Firebase Google Authentication.

💰 Razorpay Payment Integration Users can buy credits securely.

📄 PDF Export Download generated notes as a PDF.

---

🏗️ Tech Stack

Frontend

• React
• Vite
• Redux
• TailwindCSS
• Framer Motion

Backend

• Node.js
• Express.js
• MongoDB (Mongoose)

AI & APIs

• Gemini AI API
• Razorpay Payment Gateway
• Firebase Authentication

Deployment

• Frontend → Render Static Site
• Backend → Render Web Service
• Database → MongoDB Atlas

---

📂 Project Structure

NoteNexus
│
├── client
│   ├── src
│   ├── components
│   ├── pages
│   └── redux
│
├── server
│   ├── controllers
│   ├── routes
│   ├── models
│   ├── middlewares
│   └── utils
│
└── README.md

---

⚙️ Environment Variables

Backend .env

PORT=4000
MONGO_URI=your_mongodb_connection
JWT_SECRET=your_secret
RAZORPAY_KEY_ID=your_key
RAZORPAY_KEY_SECRET=your_secret
GEMINI_API_KEY=your_api_key

Frontend .env

VITE_BACKEND_URL=https://your-backend-url
VITE_FIREBASE_APIKEY='YOUR FIREBASE API KEY'

---

🛠️ Installation

Clone the repository

git clone https://github.com/Sparsh2105/NoteNexus.git
cd NoteNexus

---

Install backend

cd server
npm install
npm run dev

---

Install frontend

cd client
npm install
npm run dev

---

🌐 Live Demo

Frontend

https://notenexus-frontend-dray.onrender.com

Backend

https://notenexus-yb1m.onrender.com

---

💳 Payment Flow

1. User selects a credit plan
2. Backend creates Razorpay order
3. Razorpay popup opens
4. Payment is completed
5. Backend verifies payment signature
6. Credits are added to the user account

---

🔐 Security Features

• JWT authentication
• Razorpay signature verification
• Protected API routes
• Credit manipulation prevention

---

🎯 Future Improvements

• AI note summarization
• Study analytics dashboard
• Dark mode support
• Collaborative note sharing
• Mobile app version

---

⭐ Support

If you like this project, consider giving it a star ⭐ on GitHub.