Open Source Finance & Accounting Software
Finance & Accounting software manages monetary transactions, expense tracking, and revenue streams. These tools automate the creation of invoices, handle subscription billing, and organize double-entry bookkeeping for businesses and individuals. This type of software serves freelancers, small business owners, and people tracking personal net worth. By hosting these apps on a private server, you keep sensitive bank statements and tax documents off external clouds. This approach ensures that financial records and payment histories remain private and accessible without relying on external service providers.
This page lists 49 open source tools in the Finance & Accounting category. The most popular are Maybe, Actual and Firefly III. Most use the AGPL-3.0 or MIT license, and 42 offer an official Docker image.
Maybe
A self hosted personal finance tracker that consolidates accounts, investments, and assets into a net worth dashboard.
Actual
A local-first personal finance tool using envelope budgeting with multi-device synchronization and optional end-to-end encryption.
Firefly III
Manage personal finances and track expenses using a self-hosted system with double-entry bookkeeping and rule automation.
Midday
A business management tool for freelancers to track time, organize financial documents, and manage bank transactions.
Lago
Manage usage based and subscription billing with an open source system for metering, invoicing, and revenue analytics.
Polar
A payment infrastructure for digital products and SaaS that handles billing, sales tax, and merchant of record duties.
Akaunting
Self-hostable accounting software for small businesses and freelancers to manage invoicing, expense tracking, and cash flow.
Invoice Ninja
Create and send professional invoices, track expenses, accept payments, and manage projects from a self-hosted web app.
Sure.am
A self-hosted personal finance and wealth management platform for tracking expenses and managing overall net worth.
Ghostfolio
Track stocks, ETFs, and cryptocurrencies across multiple portfolios with a self hosted wealth management web application.
Wealthfolio
Track investments, net worth, and spending with a local first approach to financial data privacy.
Crater
A self-hosted billing and accounting tool for tracking expenses, managing payments, and creating professional invoices and estimates.
Wallos
A self-hosted web application for tracking recurring subscriptions, managing budgets, and visualizing personal spending habits.
BTCPay Server
A self-hosted Bitcoin payment processor for accepting peer-to-peer payments without transaction fees or intermediaries.
Dolibarr
Manage business activities including contacts, quotes, invoices, orders, stocks, and human resources through a modular suite.
go-stock
An AI powered stock analysis tool for tracking market trends and analyzing financial data locally.
Kill Bill
Manage subscription billing and payment infrastructure with real-time analytics and modular financial reporting tools.
ezBookkeeping
Manage personal finances with a self-hosted tracker featuring multi-currency support and AI-powered receipt recognition.
Expensify
Automate expense reporting, reimbursements, and corporate card management with real-time data synchronization and various third party integrations.
Frappe Books
Manage business finances with double-entry accounting, invoicing, and expense tracking in a local desktop application.
Frappe Books
Manage business finances with double-entry accounting, invoicing, and point of sale tools in an offline desktop app.
Kimai
Track billable hours and manage project budgets with a self-hosted system for freelancers and companies.
Bigcapital
An open source accounting and inventory system for small and medium businesses to automate bookkeeping and financial reporting.
Flexprice
Manage usage-based metering, credit systems, and subscription billing with an open architecture for AI and SaaS teams.
InvoicePlane
A self-hosted application for managing professional invoices, client records, and payment tracking for business owners.
Financial Freedom
A self-hosted budgeting application for tracking wealth and managing financial data without third party tracking.
Spliit
Track shared expenses, manage group balances, and settle debts through a self-hosted web application.
Fava
A web interface for Beancount that provides visual tools for managing double-entry plaintext bookkeeping data.
OpenMeter
Tracks real-time usage and manages billing for AI and developer tools through event-based metering and invoicing.
Paymenter
Automates subscriptions and manages payments through a billing system designed for hosting providers and ecommerce marketplaces.
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