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Browse free open source C# Calendar Software and projects below. Use the toggles on the left to filter open source C# Calendar Software by OS, license, language, programming language, and project status.

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  • 1
    Outlook CalDav Synchronizer

    Outlook CalDav Synchronizer

    Sync Outlook with Google, SOGo or any other CalDAV / CardDAV server

    Free Outlook Plugin, which synchronizes events, tasks and contacts between Outlook and Google, SOGo, NextCloud, Horde or any other CalDAV or CardDAV server. Supported Outlook versions are 2021, 2019, 2016, 2013, 2010 and 2007 and Office 365 for Desktop. This project was initially developed as a master thesis project at the University of Applied Sciences Technikum Wien, Software Engineering Degree program. Outlook CalDav Synchronizer is Free and Open-Source Software (FOSS), still you can support the project by donating on Sourceforge or directly within the About dialog of our Plugin. Contact us for enterprise support at https://caldavsynchronizer.org/enterprise/contact
    Leader badge">
    Downloads: 931 This Week
    Last Update:
    See Project
  • 2
    Lotus Notes to Google Calendar tool

    Lotus Notes to Google Calendar tool

    One-way synchronization from Lotus Notes Calendar to Google Calendar

    This is a one-way sync program that will sync your Lotus Notes Calendar to your Google Calendar. No installation is required. Includes many options such as automatic syncing at specified intervals. *Important Privacy Information: https://sourceforge.net/p/lntogoogle/wiki/PrivacyPolicy/ *** Information Update, September 2020: *** Recent issues with Google Synchronization should be fixed with version 1.9.2 which is available for download, now. For typical installation pitfalls, see: https://sourceforge.net/p/lntogoogle/wiki/InstallationPitfalls/ The project was not maintained since its last update in February 2015. However, since I've tracked more than 15.000 Downloads over the last 5 years and still more than 1 million Calendar API-Calls per day, I assume that the tool is still very much in use. So I decided to go back to work. More info: https://sourceforge.net/p/lntogoogle/wiki/Home/ Donations appreciated
    Downloads: 4 This Week
    Last Update:
    See Project
  • 3
    FreeMiCal allows the bulk export of MS Outlook appointment items to RFC 2445 conformant iCal format. .NET 2.0 or greater and Outlook 2003 or 2007 Interop Services required.
    Downloads: 1 This Week
    Last Update:
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  • 4
    google calendar sync app for WM5 Uses XML, simple XPath, .net compact framework 2.0 to retrieve google calendar feed, check against the appointments stored on the phone and adds/updates/deletes accordingly.
    Downloads: 1 This Week
    Last Update:
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  • 5
    Toes Online is a person registration and management system which can be used by organisations to registrate members. It is a powerful tool with many features, including e-mailing, grouping and financial tools, with much focus on security and easy usage.
    Downloads: 1 This Week
    Last Update:
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  • 6
    The Project aims to fulfill the following specific objectives of Computer Education, Supportive Education and Information Service Delivery, while in operation.
    Downloads: 0 This Week
    Last Update:
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  • 7
    A simple application to use Google calendar and email conveniently. It makes it easier to access Google services presenting them in a window in seperate tabs, also automating the logon by saving your user name (and password).
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    A mail/calendar/RSS client for Windows using the .NET 2.0 framework. Support POP, SMTP, GMail, GCalendar, iCal and local calendars. MyOE include and advanced spam filter, message sorting, live query, indexed search, and many more...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    Nikita is a peer-to-peer PIM. It will offer all the same benefits of the standard PIMS (such as Outlook or Chandler) but will not require a central server. Items can be marked as Calendar, Task, Email, etc... or any combination of those. Silos be gone!
    Downloads: 0 This Week
    Last Update:
    See Project
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  • 10
    A desktop application that automatically synchronizes your cellphone with Google calendar, using Bluetooth or your plain old USB cable. Designed to be unobtrusive.
    Downloads: 0 This Week
    Last Update:
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