Calendar Software for Windows

View 32 business solutions

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

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  • 1
    Vtiger CRM

    Vtiger CRM

    An enterprise-class CRM and more!

    Vtiger CRM enables sales, support, and marketing teams to organize and collaborate to measurably improve customer experiences and business outcomes. Vtiger CRM also includes email, inventory, project management, and other tools, providing a complete the business management suite. Download Vtiger CRM here or sign up for a free 15-day free trial of the cloud-based application with free updates and support at https://www.vtiger.com/
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    Downloads: 554 This Week
    Last Update:
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  • 2
    Group Office groupware and CRM

    Group Office groupware and CRM

    Take your office and CRM into the cloud!

    Installation instructions can be found here: https://groupoffice.readthedocs.io/en/latest/install/install.html Group Office is an open source groupware application. It makes your daily office tasks easier. Share projects, calendars, files and e-mail online. It is a complete solution for all your online office needs. From a customer phone call to a project and finally an invoice. The support system helps to keep your customers happy. Group Office is fast, secure and has privacy by design. You can stay in full control of your data by self hosting your cloud and e-mail. Our document editing solution keeps all data on the secured server instead of synchronising it to all user devices. GroupOffice is open source and modular. Which means it’s easy to customise and extend. You can turn off and on features and it enables any developer to create new modules for the platform.
    Downloads: 80 This Week
    Last Update:
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  • 3
    WebCalendar
    Project has moved to github: https://github.com/craigk5n/webcalendar WebCalendar is a PHP application used to maintain a calendar for a single user or an intranet group of users. It can also be configured as an event calendar.
    Downloads: 21 This Week
    Last Update:
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  • 4
    Zentyal, Linux Small Business Server

    Zentyal, Linux Small Business Server

    Zentyal is a Linux Small Business Server

    Zentyal Server is an easy to use and affordable Linux server, specially designed to meet the needs of small and medium businesses Thanks to Zentyal's Samba integration, Zentyal provides native compatibility with Microsoft Active Directory, allowing you to join Microsoft clients to a domain and manage them easily. Zentyal Server incorporates all the network services required in a small and medium business environment: * Directory & Domain Server with native compatibility with Microsoft Active Directory * Mail Server with ActiveSync and webmail * Gateway with firewall and proxy * Infrastructure Server with DNS/DHCP server, Certification Authority and Virtual Private Networks For more information and download, please access the project's home page.
    Downloads: 8 This Week
    Last Update:
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  • 5
    openCRX - Enterprise Class CRM

    openCRX - Enterprise Class CRM

    professional CRM and groupware service, ready for the cloud

    openCRX moved to https://github.com/opencrx
    Downloads: 6 This Week
    Last Update:
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  • 6
    BORG is a calendar and task tracking system written in Java. The calendar provides a nice month view, month-print, email reminders, popup reminders and to do list. The task tracker tracks issues through various states.
    Downloads: 28 This Week
    Last Update:
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  • 7
    todoyu
    Features: web2.0 project- & task-management, timetracking, team organizing, resource management, calendar, interface for your clients and lots more! Content: see license.txt (file section).
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    Downloads: 4 This Week
    Last Update:
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  • 8
    Lifeograph

    Lifeograph

    Advanced personal note taking application

    Lifeograph is a diary program to take personal notes on life. It has all essential functionality expected in a diary program and strives to have a clean and streamlined user interface.
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    Downloads: 17 This Week
    Last Update:
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  • 9
    WeekToDo

    WeekToDo

    WeekToDo is a Free and Open Source Minimalist Weekly Planner and To Do

    WeekToDo is a free and Open Source Minimalist Weekly Planner and To Do list App for simple and effective people. Schedule your tasks, set reminders and handle projects with To Do list and a calendar. Available for Windows, Mac, Linux or online.
    Downloads: 18 This Week
    Last Update:
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  • 10
    JDavide
    JDavide (per gli amici JD) è un software gratuito per la gestione dello Studio Legale che aiuta l’avvocato nell’espletamento delle operazioni quotidiane. Funzionalità: pratiche, agenda, formulario, atti, parcellazione, rivalutazione, ecc.
    Downloads: 9 This Week
    Last Update:
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  • 11
    A simple agenda tool written in PHP with MySQL backend. An agenda tool accessible everywere there's internet. Easy to install and configure. Key-features include: scheduling appointments, holidays, todo lists, secure access, multiple users, etc.
    Downloads: 2 This Week
    Last Update:
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  • 12
    IGSuite - Integrated Groupware Suite

    IGSuite - Integrated Groupware Suite

    IGSuite is a web-ajax-based Integrated Groupware Suite

    IGSuite is a web-based Integrated Groupware Suite oriented to be a CRM solution. In the Suite you can find: IGWebMail, IGCalendar, IGContacts, IGArchive, IGWiki, IGTodo, IGChat, Projects, IGFax an HylaFax client, IGFileManager, IGMsg and many other.
    Downloads: 2 This Week
    Last Update:
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  • 13
    RemoteCalendars is a COM-.NET Add-in for Outlook 2003/2007, written in C#. After installing this plugin, every Outlook user should be able to subscribe, reload and delete a generic remote iCalendar (RFC 2445) from Outlook 2003/2007.
    Downloads: 1 This Week
    Last Update:
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  • 14
    Calendar Multiplatform in .NET
    Downloads: 4 This Week
    Last Update:
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  • 15
    Personal web server which allows to take notes and read them locally or remotely with a browser or a rss-feed client. Each note can be classified into user defined categories and appears in a given date following an advanced time validity sintax.
    Downloads: 3 This Week
    Last Update:
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  • 16
    gemalab
    Software gestionale per sistemi windows Il software esegue la registrazione in prima nota di entrate e uscite, clienti e fornitori.
    Downloads: 2 This Week
    Last Update:
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  • 17

    FARMEN (WinApp)

    analisi tricologica

    Con FARMEN Trico puoi effettuare un'accurata e approfondita diagnosi dei tuoi capelli e del cuoio capelluto, grazie alla microcamera abbinata potrai...
    Downloads: 1 This Week
    Last Update:
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  • 18
    HolyServices

    HolyServices

    Planning calendar for holy services

    A planning calendar for scheduling holy services at small parishes. Synchronizes with GoogleCalendar so as to be able to collaborate with mobile devices.
    Downloads: 1 This Week
    Last Update:
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  • 19
    IlohaMail is a PHP based lightweight full featured multilingual webmail program with IMAP and POP3 support. IlohaMail also includes a full-featured contacts manager, bookmarks manager, and scheduler.
    Downloads: 1 This Week
    Last Update:
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  • 20
    LISAP (WinApp)

    LISAP (WinApp)

    analisi tricologica

    Con LISAP Trico puoi effettuare un'accurata e approfondita diagnosi dei tuoi capelli e del cuoio capelluto, grazie alla microcamera abbinata potrai...
    Downloads: 1 This Week
    Last Update:
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  • 21
    BRIM is a MVC framework, written in PHP and based on items with a hierarchical relationship. The list of plugins make BRIM a Information Manager with plugins like bookmarks, a calendar, contacts tasks, notes, RSS etc. The application is multilingual.
    Downloads: 0 This Week
    Last Update:
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  • 22
    Open Source CRM EBI Neutrino R1 is a ERP / CRM Framework for ERP and CRM software. Database independent MySQL Oracle using hibernate sql framework, Jasperreports as Report Engine. Portable Application http://www.ebineutrino.org
    Downloads: 0 This Week
    Last Update:
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  • 23
    IE4RC means Internet Explorer extension for RemoteCalendars. It's a .NET plugin for Internet Explorer, which it'll make it possible to subscribe an iCalendar (RFC 2445) in Outlook if RemoteCalendars is installed. It'll add also support for webcal.
    Downloads: 0 This Week
    Last Update:
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  • 24
    New concept of a modern diary and sticky notes, developed in Java SE
    Downloads: 0 This Week
    Last Update:
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  • 25
    This is a php web calender. Mini Multilanguage Support; Multiuser capability; Aspect can be modified via web interface; RTE to edit events; Onmouseover effect to show events; No need of databases; Export/Import events;
    Downloads: 0 This Week
    Last Update:
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