Odoo Community
A broad modular business suite spanning finance, sales, inventory, purchasing, manufacturing, and more.
ERP & General AccountingProcurement / P2PLGPL-3.0-only
7 projects · 3 categories
Finance & Accounting
Run the books, control cash flow, invoice customers, and support recurring revenue models.
ERP & General AccountingSME Accounting & InvoicingSubscription & Usage Billing
ERPNext
A full ERP for accounting, procurement, stock, manufacturing, projects, CRM, and service operations.
ERP & General AccountingProcurement / P2PGPL-3.0-only
Dolibarr
A long-running ERP and CRM for invoicing, accounting, orders, suppliers, inventory, and projects.
ERP & General AccountingSME Accounting & InvoicingGPL-3.0-or-later
Lago
API-first metering and usage-based billing for complex subscription pricing.
Subscription & Usage BillingAGPL-3.0-only
Kill Bill
Mature subscription billing and payments infrastructure designed for extensibility and scale.
Subscription & Usage BillingApache-2.0
Bigcapital
Modern double-entry accounting and inventory for small and medium businesses.
ERP & General AccountingSME Accounting & InvoicingAGPL-3.0-only
Frappe Books
Offline-friendly desktop accounting with invoicing, double-entry books, and financial reports.
SME Accounting & InvoicingAGPL-3.0-only