Free calendar creator software for linux

Calendar is a web-based calendar tool that produces pretty, readable calendars. NEW! Rewritten in Java for MySQL! Calendar project began out of frustration with other web-based calendar tools inability to display a readable calendar format. It was very much a project to "scratch an itch" -- to meet an immediate need that the author had. Since then, it has evolved considerably into a very useful tool that produces prettier calendars than those printed by most organizer software.
Main features:
- NEW! Subscriptions can be created to periodically fetch events from remote calendars, just like iCal and Sunbird can do.
- Events on the calendar appear exactly as typed in the admin tool -- the descriptions are not cut off in the display. This makes the calendar just as useful when its printed.
- The entire calendar is rendered in HTML -- no Flash or Java is used.
- Single-day, multi-day and occassional events are all supported. ("Occasional" events are those events that occur multiple times but dont necessarily follow a regular pattern.)
- Repeating events are supported and can repeat on a daily, weekly, monthly or yearly basis.
- Events may be categorized for easy administration.
- Nearly everything about the display is themable -- colors, fonts, border styles, first day of the week, weekday column widths, categories, etc.
- A calendar may be setup as a "private" calendar, so the user must be logged in to see it.
- NEW! A calendar may be setup as a "semi-private" calendar, so the user will only see the scheduled times but no event details.
- The admin tool is password protected and different users can be assigned different permission levels.
- Apple iCal and Mozilla Sunbird users can subscribe to the calendar with one click.
- A really bland, unimaginative name makes it easy to discuss this project without being overheard by foreign intelligence agents.
The first version of this software was written in ASP (VBScript) and ran on IIS 4.0 or higher with a database on SQL Server 7.0 or higher. The current version has been completely rewritten in Java to run on Tomcat 5.5 or higher with a database on MySQL 3.3 or higher. The feature set has grown immensely since then. The two versions have no code in common.

NetCalendar is a network capable and mostly UNIX /usr/bin/calendar database compatible Calendar application programmed in Java.

NetCalendars initial motivaion was a programming project at the Aachen University of Applied Sciences for the object oriented programming class. But it became much more than just that!

IMAP Calendar Proxy implements an HTTP proxy that converts HTTP PUT requests of vcalendar data to separate messages stored on an IMAP server.

IMAP Calendar Proxy project can be used with Mozilla Sunbird/Calendar to allow storage of a calendar via IMAP.

There are many issues with the program in its current state. Consider it alpha quality, and you may lose calendar data if you use it. Its more of a proof of concept right now. Its rather slow if you have a large calendar.

Ideally IMAP support should be built into Mozilla. This is just a hack. Id like to hear any feedback on how it works. See the TODO file for features Id like to implement.

Sunbird can post calendars to a remote HTTP server via HTTP PUT and to
synchronize via a GET before a PUT. This proxy should run on the same system
you run Sunbird on. It makes a connection to an IMAP server and selects
a specified folder.

It then retrieves all calendar data from that server and caches it it memory. Any changed to the calendar are HTTP PUT to this proxy, and it determines what to do on the IMAP server (delete, change, add). Instead of posting the whole calendar back to the server, it only posts the differences.

If you run the proxy elsewhere on the network, you will not get any bandwidth
savings because the HTTP PUT and GET are still done over the network.

Milo Calendar is a SuperKaramba script that reads the dates stored by KOrganizer and displays them on your desktop in a clear, neat calendar.

The calendar also displays todays date and it can move back/forward months. the descriptions of the events are shown via tooltips.

The images for this theme should be very customizable. In the next versions I will try to make them compatible with rainlendar themes found all over the net!

I must thank DeVoeSquared.com for the iCal module, and rainy (rainlendar) for the theme.

Note: if you have multiple KOrganizer resources, you can change the name of the file that milo calendar reads:

the default is:
reader = iCal.ICalReader(std)
in the dir: ~/.kde/share/apps/korganizer/std.ics

GPE calendar stores and manages scheduled events. GPE calendar supports entries without due times, recurring events (birthdays or other anniversaries), and different view modes to give the user a good overview.
Main features:
- Entries without due-time, just a note for a particular day.
- Recurring events with options for daily, workdays, weekends, monthly, yearly (birthdays or other anniversaries)
- Different view modes to give the user a good overview.

Holidays or other events can be configured to be highlighted in a special way (using CSS styles). The days of the month can rendered with a form checkbox or radio buttons so they can be selected by the user.

Rendering of the different calendar elements can be configured using CSS styles. The names of the months and days of the week can be configured, so that they’re displayed in a language other than English.

This class is licensed under the GNU Lesser General Public License (LGPL), so feel free to use it, modify it as you want, although a little credit is always welcome.

PloneiCalendar allows you to share and browse calendar files in Plone, and manage them in your calendar application.
PloneiCalendar is a product designed by Ingeniweb to handle calendar files in Plone. It is based on the iCalendar file format.
Once an PloneiCalendar is created in Plone, you can share it with other users or groups (you can give read or write permissions), browse it by day, week and month or modify it by using standard calendar applications like Mozilla Calendar or Apple iCal (or Ximian Evolution or KOrganizer or whatever you want - may be even Microsoft Outlook ;) ).
Main features:
- Upload and download your calendars in Plone
- Give permissions to users or groups to view/modify your calendars
- Browse your calendars by day, week or month
- Instantly find all your calendars with the included portlet
- View the event details
- All-day events and most recurring events are supported
- Handling of simultaneous events, even in complex cases (see screenshot)
- Handling of i18n date formats (currently, english and french formats can be displayed)
- Cool looknfeel : color integration with your plone site, personalization of the color of your calendars, 100% pure CSS in the calendar views (no table used)