Smart Personal
Finance Manager.

What it does.

1. Accounts

   Create an account, log in, log out. Passwords are stored as hashlib SHA-256 hashes, never as plain text.
2. Transactions

   Add income and expenses with a date, amount, category, and description. Remove any of them later by transaction ID.
3. Filters

   Pull up transactions by category, by date, or by both at once when you want a narrower view.
4. Budgets

   Set a monthly budget per category. A warning shows up when spending gets close to the limit, and again once it goes over.
5. Reports

   Monthly and yearly reports with totals for income, expenses, savings, and a breakdown by category.
6. Charts

   Matplotlib draws a pie chart for spending, a line graph for income against expenses, and a bar chart comparing categories.
7. Storage

   Everything saves to a JSON file and loads back when the program starts, so your data sticks around.
8. Error handling

   Bad dates, bad numbers, and a missing or corrupted data file are all caught. A damaged file just starts you with empty data instead of crashing.

What's under the hood.

Built with tkinter·Matplotlib·hashlib·JSON·Datetime·OS. The rest is just plain Python.

Run it on your own computer.

It's a tkinter desktop app, so it opens in its own window — it won't run in the browser. Grab the file and run it locally.

1. Make sure you've got Python 3, plus matplotlib installed.
2. Open main.py in anything that runs Python. IDLE, VS Code, etc.
3. Run it — a window pops up. Make an account and start adding transactions.