💸 Minimal Personal Expense Logger (version 01)

A super lightweight personal expense tracker that logs data to Google Sheets, secured by a password prompt. Designed for solo use, hosted online but accessible only to me.

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🌐 Live Site

👉 Open App

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🚀 Features

• 🧾 Log Debit or Credit entries with name, amount, and optional notes
• 🗃 Stores data directly in a Google Sheet
• 🔐 Password protected with backend verification
• 🌐 Can be deployed on any Node.js-friendly platform (Render, Vercel, etc.)

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⚙️ Tech Stack

• Frontend: HTML + CSS + Vanilla JS
• Backend: Node.js + Express
• Storage: Google Sheets via google-spreadsheet
• Auth: Custom password validation via backend and .env

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🔐 Security

• Password is checked only on the server
• Never exposed in dev tools
• Perfect for private use (not multi-user or enterprise-grade security)

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🛠️ Setup Instructions

Install dependencies

npm install

Create a .env file

PASSWORD=your-secret-password
SCRIPT_URL=your-google-script-url
SHEET_URL=your-sheet-url

Run locally

node server.js

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✅ Roadmap

• Log expenses to Google Sheets
• Password-protected access
• Monthly total summary
• Add spending categories and filters
• Export to CSV

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Made with ❣️ by Samarpan 🔗 Portfolio 🐙 GitHub 💼 LinkedIn