OrangeHRM offers a complete suite of human capital management / human resource management tools.
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SABnzbd Plus is a free/open-source cross-platform binary newsreader written in Python.
A UBB-style discussion board written in PHP. It includes many messaging features, private forums, and robust themes.
Customer Relationship Management system ideal for small and medium businesses. Includes Sales, Service/Marketing, and ERP modules for Inventory/Projects.
Complete web-based accounting/Enterprise Resource Planning system. Wide range of features suitable for businesses in wholesale and distribution.