ExpenseOwl

ExpenseOwl is an extremely simple expense tracking system with a modern monthly pie-chart visualization. It tracks daily expenses, visualizes monthly spending patterns, and maintains an overview of financial habits.

Core Functionality:

• Simple expense tracking with essential details only (optional name, date without time, amount, and category)
• UUID-based expense identification in the backend
• Flat file storage system (data/expenses.json)
• Multi-architecture Docker container with support for persistent storage
• REST API for expense management
• Single-user focused (mainly for a home lab deployment)
• CSV export of all expense data from the UI
• CLI for both server and client (if needed) operations
• Custom categories via environment variable (EXPENSE_CATEGORIES) with sensible defaults
• Custom currency symbol in the frontend via environment variable (CURRENCY)

Visualization:

• Dashboard with expense category breakdown (pie chart)
• Click on a category to exclude it from the graph, click again to add it back
• This helps visualize the breakdown without considering some categories like Rent
• The legend shows the total expenditure of the month along with the total without the "Rent" category
• Table view for detailed expense listing
• This is where you can view individual expenses chronologically and delete them
• You can use the browser's search to find a name if needed
• Month-by-month navigation