Money Manager Ex (MMEX) is a free, open-source personal finance software designed to act like a digital checkbook for tracking income, expenses, and assets. The “Portable” version allows you to run the entire application and store your local database entirely on a USB flash drive or external drive without installing any software on the host computer.
Because it is an offline-first platform, your data is never stored on third-party cloud servers unless you manually back it up, making it highly secure and private. Core Concepts for Beginners
The .mmb Database: MMEX stores all of your financial records in a single, non-proprietary SQLite file with the extension .mmb. If you are running the portable version, this file should sit right on your USB drive.
Base Currency: When you first set up your database, you establish a primary currency. While you can create accounts using different international currencies, MMEX handles the conversions and uses your base currency for total reports.
Payees vs. Categories: Payees are the people or institutions you exchange money with (e.g., your employer or a local grocery store). Categories represent the reason for the transaction (e.g., “Salary” or “Groceries”). Step-by-Step Setup Guide 1. Launching Portably
To run MMEX as a fully portable application, you can download it via PortableApps.com.
Download and install the portable framework onto a USB stick.
Search the built-in app store for Money Manager Ex Portable and install it directly to the stick.
Alternative: If downloading the standard files directly from GitHub, create an empty text file named mmexini.db3 inside the application folder; this forces MMEX to operate strictly in “portable mode” and leaves zero data traces on the host PC. 2. Creating Your Database MoneyManager Ex –
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