WebCalendar is an open source calendar application. WebCalendar was initially released in 2000 and today has been downloaded more than 1.2 million times.

WebCalendar is a calendar application that can be configured as a single-user calendar, a multi-user calendar for groups of users, or as an event calendar viewable by visitors.

WebCalendar can be setup in a variety of ways, such as:

-WebCalendar developer