The best open source alternative to Maybe is Actual. If that doesn't suit you, we've compiled a ranked list of other open source Maybe alternatives to help you find a suitable replacement. Other interesting open source alternatives to Maybe are: Firefly III, Sure.am, Wealthfolio, and Ghostfolio.
Maybe alternatives are mainly Budgeting Apps but may also be Investment Tracking Tools or Finance & Fintech Tools. Browse these if you want a narrower list of alternatives or looking for a specific functionality of Maybe.
Privacy-focused personal finance app using envelope budgeting, multi-device sync, optional end-to-end encryption, and bank sync for US, EU, and UK users.

Actual Budget is a personal finance management tool built around envelope budgeting, the method where you assign every dollar you actually have to a specific category before spending it. No projected income, no made-up numbers. You budget what's in your accounts right now, which keeps your plan grounded in reality.
It's local-first by design. Your data lives on your device, and the app works fully offline. Sync happens in the background across as many devices as you want, but a dropped connection doesn't stop you from using it. For people who've grown uncomfortable with cloud-first finance tools, that's a meaningful distinction.
Key capabilities:
The interface is intentionally minimal and fast. Categorizing transactions, reviewing spending, and moving money between envelopes are all optimized to take as few taps or clicks as possible. Dark mode and system-level theming are built in.
Actual is self-hosted. You run the sync server yourself, which means your financial data never touches a third-party service unless you choose bank sync. Among budgeting apps that offer this level of privacy, few match its combination of polished UI and full local control.
Looking for open source alternatives to other popular services? Check out other posts in the alternatives series and openalternative.co, a directory of open source software with filters for tags and alternatives for easy browsing and discovery.
Free open-source personal finance manager with transaction tracking, budgeting, advanced rules, and REST API for complete financial control.

Firefly III is a free and open-source personal finance manager designed to give you complete control over your money. Whether you're managing household expenses, tracking investments, or organizing finances across multiple currencies, this tool provides the features you need without vendor lock-in.
Core Features:
The combination of powerful automation through rules and detailed visibility through reports makes it easy to understand your spending patterns and make informed financial decisions. Being open-source means you can self-host it, customize it to your needs, and never worry about your financial data being sold or locked behind subscription walls.
An all-in-one personal finance platform. Track, optimize, grow, and manage your money through every stage of life.

Take control of your finances with a single, unified view of your money. Connect bank accounts, cards, investments, and even custom assets, or add everything manually when you prefer full control. Powerful transaction tools let you create, edit, tag, and link income, expenses, and transfers so your records always stay accurate and organized.
Key features:
Open-source and self-hostable, it offers transparent, privacy-first personal finance management built in public.
Wealthfolio is a simple, secure desktop app for tracking investments and managing your wealth without compromising data privacy.

Wealthfolio is an open-source desktop application designed for individuals who want to take control of their financial future without compromising on data privacy. This powerful yet user-friendly tool keeps your sensitive financial information secure on your local machine, eliminating the need for cloud storage or subscriptions.
Key Features:
Why Choose Wealthfolio?
Wealthfolio empowers you to make informed financial decisions by providing a clear, comprehensive view of your investments and savings. Whether you're planning for retirement, saving for a major purchase, or simply want to grow your wealth, Wealthfolio gives you the tools you need to succeed.
Take charge of your financial future today with Wealthfolio – where simplicity meets security in personal finance management.
Open-source wealth management software for tracking stocks, ETFs, and cryptocurrencies across multiple portfolios

Ghostfolio is a powerful, open-source wealth management platform designed to help you take control of your financial future. With its intuitive interface and comprehensive features, Ghostfolio empowers investors of all levels to track, analyze, and optimize their investment portfolios with ease.
Key benefits of Ghostfolio include:
Whether you're a seasoned investor or just starting your financial journey, Ghostfolio provides the tools and insights you need to make smarter investment choices and work towards your financial goals. Take charge of your wealth management today with this powerful, community-driven platform.
Self-hosted alternative to Mint and YNAB for budgeting and building wealth while maintaining full control of your financial data.

Financial Freedom is an open-source personal finance management tool designed to give users complete control over their financial data. Key features include:
The tech stack includes:
Financial Freedom is being built in public, with regular updates shared on social media. The project encourages community involvement through:
By choosing Financial Freedom, users can budget, track expenses, and work towards financial goals without sacrificing data privacy or ownership.
Looking for open source alternatives to other popular services? Check out other posts in the alternatives series and openalternative.co, a directory of open source software with filters for tags and alternatives for easy browsing and discovery.
Manage your money confidently with monetr, putting aside what you need and spending what you want

Monetr is a powerful personal finance tool designed to help you take control of your finances on a paycheck-by-paycheck basis. With monetr, you can:
monetr offers a user-friendly interface that allows you to visualize your financial situation clearly. Whether you're looking to build an emergency fund, save for a major purchase, or simply gain better control over your day-to-day spending, monetr provides the tools and insights you need.
Key features include:
With monetr, you can take the guesswork out of personal finance and make informed decisions about your money. Start your journey to financial confidence today!
YAFFA is a powerful, open-source budget app for managing expenses, budgets, and investments with secure self-hosting.

YAFFA (Yet Another Free Finance Application) is a robust, open-source personal finance solution designed for individuals who value privacy and long-term financial planning.
Key features:
YAFFA empowers users to take control of their financial future without compromising on data privacy. Whether you're a budgeting novice or a seasoned investor, YAFFA provides the tools you need to make informed financial decisions and work towards your long-term goals.
Get started with YAFFA today and experience the freedom of managing your finances on your own terms, with no subscription fees or data sharing concerns.