Odoo is a suite of open source business apps that cover all your company needs.
Website Builder, Ecommerce, Blogs, Forum, Slides, Live Chat, Appointments
Sales, CRM, Invoicing, Point of Sales (Shops, Restaurants, Hardware), Subscriptions, Sign
Accounting, Inventory, Timesheets, Project, Purchase, Helpdesk, Human Resource (Recruitment, Employees, Expenses ,Appraisal, Fleet, Leaves), Manufacturing (MRP, PLM, Maintenance, Quality)
Communication (Discuss,Mailing Lists,Notes), Timesheet, Email Marketing, Events, Survey, Appointments, Marketing Automation