OpenBudgeteer is a self-hosted budgeting application based on the bucket budgeting principle.
It helps users plan where their money should go before it’s spent, rather than simply categorising transactions after the fact. The application is built with .NET and Blazor Server, and provides tools for managing accounts, creating budget buckets, assigning transactions, tracking recurring expenses, and reviewing budget history over time.
This is free and open source software.
Key Features
- Uses bucket budgeting to allocate money to spending categories, savings goals, and future expenses.
- Supports standard buckets, monthly expenses, expenses every set number of months, and fixed savings targets.
- Lets users create bank accounts and define an opening balance through transactions.
- Imports transactions from CSV files with configurable delimiter and text qualifier settings.
- Allows imported transactions to be assigned to one or more buckets.
- Includes bucket history and versioning for reviewing changes across previous months.
- Can be deployed with Docker or built manually using the .NET SDK.
- Supports MySQL, MariaDB, and PostgreSQL databases, with Redis used for application settings.
- Offers an optional API container with Swagger documentation.
Website: github.com/TheAxelander/OpenBudgeteer
Support:
Developer: Alexander Preibisch
License: GNU Affero General Public License v3.0

OpenBudgeteer is written in C#. Learn C# with our recommended free books and free tutorials.
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Read our verdict in the software roundup.
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