Browse free open source Calendar software and projects for Mac and BSD below. Use the toggles on the left to filter open source Calendar software by OS, license, language, programming language, and project status.
An enterprise-class CRM and more!
Take your office and CRM into the cloud!
professional CRM and groupware service, ready for the cloud
Tool to remind you to upcoming birthdays and events.
lawyer office suite
Platformunabhängiger Kalender zum Eintragen von Ereignissen