Rockstar ERP is an open-source web-based general purpose enterprise resource planning system (ERP), a perfect starting point for the development of industry-specific templates and tailor-made solutions for companies of all sizes including finely selected set of core functions in the field of finance, purchase, inventory and sales, completely free for commercial use. Features Finance General ledger, cross-company accounting, multi-currency accounting, sales tax accounting, fixed assets, bank management, cost accounting Purchase Vendor management, purchase orders, purchase invoices, sent payments Inventory Inventory management, on-hand inventory, order promising Sales Customer management, sales orders, sales invoices, received payments