Browse free open source Calendar software and projects 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
Time Tracker solution for freelancers and teams
private digital diary & note taking appliaciton
ComingNext is a calendar homescreen widget for the Symbian smartphones
WeekToDo is a Free and Open Source Minimalist Weekly Planner and To Do
Planning calendar for holy services
Tool to remind you to upcoming birthdays and events.
lawyer office suite