SplitBuddy – Smart Expense Sharing & Group Settlements

Author

Utsah – Department of Chemical Engineering, IIT Roorkee Enrollment No.: 22112109 Bhawan: Rajiv Bhawan

🎉 Technopedia 2025 – Rajiv Bhawan Hackathon

An intra-bhawan hackathon hosted by Rajiv Bhawan, IIT Roorkee, fostering creativity and problem-solving through AI, analytics, and smart decision-making.
This project was built under the Digital Innovation & Design track.

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📌 Project Overview

SplitBuddy is a smart expense tracking and settlement platform designed for groups, friends, and communities. It simplifies expense logging, debt tracking, and settlements while providing insights and analytics into group spending patterns.

Whether it’s a trip with friends, monthly rent sharing, or managing club finances — SplitBuddy ensures transparency and accuracy.

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🚀 Key Features

• Group Expense Tracking – Log shared expenses with amounts, participants, and currency.
• Multi-Currency Support – Track expenses in different currencies using MoneyField.
• Smart Settlement Suggestions – Automatically calculate who owes whom.
• Expense Analytics & Graphs – Category-wise, monthly, and favorite group expense insights.
• Authentication & Profiles – Secure user accounts and personalized dashboards.
• Responsive UI – Built with Material UI for a clean, modern look.

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📊 Tech Stack

Backend

• Framework: Django REST Framework
• Database: Sqlite (default), PostgreSQL (production)
• Libraries: djmoney, rest_framework_money_field, DRF serializers

Frontend

• Framework: React (Vite setup)
• Libraries: Material UI, Recharts

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📈 Highlights

• Standardized Money Serialization in JSON ({"amount": value, "currency": "XYZ"}).
• Clean Code Practices enforced with pre-commit hooks.
• Modular Architecture for scalability.

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📂 Repository Structure

├── backend/
│   ├── analytics/
│   ├── expenses/
│   ├── groups/
│   ├── splitbuddy/
|   |   ├── settings.py
│   |   ├── urls.py
│   |   └── wsgi.py
│   ├── users/
│   ├── .env
│   ├── db.sqlite3
│   ├── manage.py
│   └── requirements.txt
│
├── frontend/
│   ├── public/
│   ├── src/
│   ├── .env
│   ├── index.html
│   ├── eslint.config.js
│   ├── package-lock.json
│   ├── package.json
│   └── vite.config.js
│
├── .gitignore
├── .pre-commit-config.yaml

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🔧 Development Setup

Backend

cd backend
python -m venv venv
source venv/bin/activate  # On Windows use: venv\Scripts\activate
pip install -r requirements.txt
python manage.py migrate
python manage.py runserver

Frontend

cd frontend
npm install
npm run dev