💰 Multi-User Personal Finance Tracker & Analytics Hub

🔗 Live Interactive System Previewer

A premium, full-stack web application designed to track personal financial outflows, analyze daily spending velocities, and provide interactive data visualization. Built using a Python Flask backend and an optimized relational SQLite database, the system features a sleek, modern glassmorphism UI with real-time asynchronous data control mechanics.

• Encrypted Multi-User Authentication: Secure registration and login gateway utilizing cryptographically hashed user credentials (Werkzeug).
• Isolated User Ledger Spaces: Full data isolation across separate user accounts via SQL relational mapping strategies.
• Dual-Engine Interactive Graphing: Real-time spending distribution chart with a live front-end toggle switching between a modern Doughnut ring and a traditional Pie chart layout (Chart.js).
• Color-Locked Data Filtering: Dynamic category filters that isolate specific spending while retaining cohesive palette tracking for instant visual assessment.
• Daily Spending Velocity Timeline: Chronological historical bar chart tracking daily spending parameters across the active running month.
• Premium Spreadsheet Data Stream: Custom inline CSV data streaming component enabling one-click historical backups and current-month statement downloads optimized for Microsoft Excel.

• Backend Architecture: Python 3, Flask Web Framework, SQLite Database, SQL Parameterization
• Frontend Engine: Semantic HTML5, Vanilla JavaScript (ES6+ Custom Data Filters), Modern CSS3 (Glassmorphism Core Theme)
• Data Visualization Library: Chart.js Engine (Doughnut, Pie, and Bar Configurations)
• Security Utilities: Werkzeug Password Security Hashing Modules (scrypt)

├── app.py # Main Flask Server Engine, SQL Controllers & Session Handlers
├── tracker.db # Active SQLite Database (Auto-generated on launch)
├── requirements.txt # Deployment Core Dependency Manifest
├── static/
│ └── style.css # Signature Lavender/Midnight Glassmorphism Layout Framework
└── templates/
 ├── index.html # Primary Analytics Dashboard & Core Graph Interfaces
 ├── expenses.html # Interactive Transaction Ledger & Search Controls
 ├── login.html # Authentication Gateway View
 ├── register.html # Account Provisioning View
 ├── add.html # Expense Recording Form
 └── edit.html # Data Mutation/Correction Panel