💸 Expense Tracker

A comprehensive full-stack Expense Tracker application built with modern web technologies. Take control of your finances with powerful tracking, visualization, and predictive tools.

✨ Highlights

• Secure Authentication - Encrypted password handling and JWT-based sessions
• Comprehensive Tracking - Record both expenses and income with detailed categorization
• Powerful Analytics - Visualize spending patterns and identify financial trends
• Predictive Insights - Forecast future spending based on historical data

🚀 Features

Feature	Description
💰 Expense Management	Add, edit, and categorize all your expenses
💵 Income Tracking	Record all sources of income with detailed information
📊 Visual Analytics	Interactive charts and graphs to visualize your financial data
🔮 Predictive Analysis	Spending predictions based on your history
📱 Responsive Design	Seamless experience across desktop and mobile devices
🔒 Secure Authentication	Enterprise-grade security for your financial data

🛠️ Technology Stack

Frontend

• React.js - Component-based UI development
• Redux - State management for complex application data
• TailwindCSS - Utility-first CSS framework
• Vite - Next-generation frontend tooling
• React Icons - Beautiful icon integration

Backend

• Node.js - JavaScript runtime for server-side logic
• Express.js - Fast, unopinionated web framework
• MVC Architecture - Clean, maintainable code structure
• JWT Authentication - Secure, stateless authentication

Database

• SQL - Robust relational data storage (You can find the dump here: Expense_Trackers\backend\database\expense_trackerFull.sql)

🔐 Security Implementation

Our authentication system prioritizes security:

1. Passwords are encrypted on the frontend using AES before transmission
2. Server-side processing includes decryption and secure hashing
3. JWT tokens provide secure, stateless session management
4. All sensitive operations require proper authentication

🚀 Getting Started

Prerequisites

• Node.js (v14+)
• npm or yarn
• SQL database (MySQL/PostgreSQL/SQLite)

Installation

1. Clone the repository

   git clone https://github.com/shivanshunigam01/expense-tracker.git
   cd expense-tracker

2. Install dependencies

   # Install backend dependencies
   cd backend
   npm install
   
   # Install frontend dependencies
   cd ../frontend
   npm install

3. Set up environment variables

   # backend/.env
   PORT=5000
   JWT_SECRET="sD3#7kP@!29zLr8q^T5vK0wZ!eF$YxN#"
   

4. Set up the database

   • Execute SQL scripts from the database/ directory

5. Start the application

   # Start backend (from backend directory)
   npm run dev
   
   # Start frontend (from frontend directory)
   npm run dev

📱 Application Screenshots

Registration	Login
Income Tracking	Expense Management

🔍 API Testing

A comprehensive Postman collection is available for testing all API endpoints: Download Postman Collection

🧪 Test Credentials

For quick testing, use the following demo credentials:

• Email: shivanshunigam18@petpooja.com
• Password: shivanshunigam18@petpooja.com

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

🤝 Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

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Made with ❤️ for better financial management