Expense Tracker

A powerful and user-friendly Expense Tracker application designed to help users manage finances efficiently with secure authentication, multi-currency support, savings goals, analytics, and full customization.

---

🚀 Features

🔐 Authentication & Security

• Secure email/password authentication
• Account verification with OTP (Email/SMS)
• Session management (view & revoke active logins)
• Encrypted user data handling
• Optional 2FA support (future improvement)

👤 User Profile

• Editable profile with name, email, phone, avatar
• Multi-currency preference (USD, EUR, BDT, INR, etc.)
• Language preference
• Theme preference (light, dark)

💱 Multi-Currency Support

• Choose base currency during onboarding
• Automatically convert amounts using live/external rates
• Store expenses in multiple currencies
• Display total reports based on selected main currency

🧾 Transaction Management

• Add, edit, delete expenses
• Transaction categories (Food, Transport, Bills, Health, Shopping, etc.)
• Custom categories support
• Attach notes, tags, and receipt images (optional)

🎯 Savings Goals

• Create savings goals (e.g., “Buy a Laptop”, “Emergency Fund”)
• Track goal progress
• Set deadlines and contribution reminders

📊 Analytics & Insights

Detailed summaries:

• Daily
• Weekly
• Monthly
• Yearly

Includes:

• Category-wise distribution
• Highest spending categories
• Comparison with previous time periods
• Savings goal progress analytics

🌐 Multi-Language Support

• Support for multiple languages (e.g., English, Bangla, Spanish)
• Easy integration for adding more languages

🎨 Themes & UI Customization

• Light mode
• Dark mode

⚙️ Settings & Preferences

• Change currency
• Change language
• Change theme
• Manage active sessions
• Manage account security
• Export data (future improvement)

---

🏗️ Tech Stack

Frontend

• React
• TailwindCSS + DaisyUI
• Redux Toolkit + RTK Query
• i18n for multi-language

Backend

• Node.js + Express
• JWT Authentication
• Zod

Database

• PostgreSQL

Project Installation

git clone https://github.com/siam9192/Expense-Tracker.git
npm install

How to run backend ?

cd backend npm install

• Create a .env file inside the backend/ folder (not the project root unless specified).
• Copy the variables from .env.local (if provided) and paste them into your .env file.
• Set appropriate values for each environment variable

🔧 Start the Backend Server

npm run dev Once the command runs successfully, backend server should be up and running (typically on http://localhost:5000 or whichever port is set in .env).