LowCal is a lightweight Web-based calendar of events. It is designed to allow you to announce events that have already been planned (it's not "groupware" and doesn't do "calendaring") without requiring the installation of PHP or a database backend. Events can be categorized and users can choose to display one, multiple, or all categories. Viewing modes include tabular monthly calendars and plain event lists, with or without details. Recurring events are well-supported using a cron-like syntax. All display is template-based, allowing complete configurability.