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Open Source Accounting Software using Composer

A curated collection of the best open source software for bookkeeping, financial reporting, and accounting tasks. using Composer.

Free online accounting for small businesses and freelancers

Self-hostable accounting software covering invoicing, expense tracking, cash flow, and client portals. Free to use, available in 50+ languages.

Open Source Alternative to:

AI-powered embedded AR/AP automation for platforms

Crater offers AI-driven invoicing workflows, payments, and working capital tools to enhance your platform with minimal technical effort.

Open Source Alternative to: