💰 Expense Tracker System

A real-time expense tracking application built with Python and Streamlit, using session state for persistent data management without a database.

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🎯 Objective

Track personal income and expenses in real time — with live balance updates, transaction history, category filters, and full session-based data persistence.

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🚀 Key Features

• 💵 Dual transaction types — Income & Expense
• 🗂️ 5 categories — Salary, Shopping, Food, Bills, Other
• ⏱️ Timestamped transaction records
• 📊 Live balance display — green for positive, red for negative
• 🔍 Filter transactions by type (All / Income / Expense)
• 🗑️ Selective delete by transaction index
• 🔄 Reset All option to clear all data
• 📋 Last action tracker using session state
• 🔎 Full session state viewer via expander (for debugging)

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🛠️ Tech Stack

Tool	Purpose
Python	Core programming language
Streamlit	Interactive web app UI
Session State	In-memory data persistence
Datetime	Transaction timestamping

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📁 Project Structure

expense-tracker-system/
│
├── expense_tracker.py    # Main Streamlit app
├── requirements.txt      # Dependencies
└── README.md             # Project documentation

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▶️ How to Run

1. Clone the repository

git clone https://github.com/Shiva-keerth/expense-tracker-system.git
cd expense-tracker-system

2. Install dependencies

pip install -r requirements.txt

3. Run the Streamlit app

streamlit run expense_tracker.py

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📊 Outcome

• Built a fully functional expense tracker without any database
• Demonstrated real-world use of Streamlit session state for data persistence
• Clean UI with conditional formatting and dynamic filtering

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👤 Author

Shiva Keerth G
📧 gantishivakeerth@gmail.com
🔗 GitHub | LinkedIn