egroupware
self-hosted, groupware

EGroupware is a comprehensive software suite that offers a wide range of tools for collaboration and productivity, including calendars, address books, notepads, project management, client relationship management (CRM), knowledge management, a wiki, and a content management system (CMS). With its user-friendly interface and extensive features, EGroupware allows teams to effectively manage their tasks, communicate with colleagues, organize schedules, and streamline workflow processes. Whether you're working on a project, managing client relationships, or sharing knowledge within your organization, EGroupware provides the tools you need to enhance productivity and collaboration.