Showing 650 open source projects for "desktop calendar"

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  • 1
    Google Calendar MCP

    Google Calendar MCP

    Google Calendar MCP server for Claude Desktop integration

    A Model Context Protocol server that allows AI assistants like Claude to interact with Google Calendar, enabling seamless calendar management through natural language conversations. ​
    Downloads: 0 This Week
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  • 2
    Add to Calendar Button

    Add to Calendar Button

    The convenient JavaScript snippet to create buttons

    The convenient JavaScript snippet, which lets you reliably create beautiful buttons, where people can add events to their calendars. Welcome to the maybe most conveniant way working with Add to Calendar Buttons. Supporting all major calendars; in all modern browsers (Chrome, Edge, Firefox, Safari); on Windows, Mac, Android, and iOS as well as rather restricted webview environments like the Instagram in-app browser. For everybody, who wants to include a button at their website or app, which...
    Downloads: 0 This Week
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  • 3
    Calendar
    Calendar、Task This is only a read-only mirror repository. Main repository: https://github.com/KangLin/Calendar
    Downloads: 0 This Week
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  • 4
    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: 16 This Week
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    Tutanota

    Tutanota

    Open source email service with a strong focus on security and privacy

    Tutanota is an open source email client focused on security and privacy. It is built with end-to-end encryption and 2FA, so you can be assured of utmost email security. Tutanota is always encrypted, so whether you’re using their secure webmail client, mobile apps or desktop clients, you can be sure to communicate securely.
    Downloads: 14 This Week
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  • 6
    ProjectForge

    ProjectForge

    Web-based solution for project management

    ProjectForge is a professional-grade, Java‑based web PM solution offering time tracking, team calendars, Gantt charts, financials, and work‑breakdown control. It’s available as Docker images or executable jar for server or desktop deployment.
    Downloads: 0 This Week
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  • 7
    Nextcloud Server

    Nextcloud Server

    A safe home for all your data

    Nextcloud server is a free and open source server software that allows you to store all of your data in a server of your choosing. With Nextcloud you can easily access and store data in the data center you trust, sync data among various devices, and share your data for collaboration purposes. It offers the best security in the self hosted file sync and share world, and is expandable with hundreds of apps.
    Downloads: 28 This Week
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  • 8
    EGroupware

    EGroupware

    Web based groupware server written in PHP

    EGroupware is a web-based groupware solution for enterprise collaboration and productivity. It combines project management, email, calendaring, CRM, and file sharing in one open-source platform. EGroupware is designed for medium to large organizations looking for a self-hosted alternative to Microsoft 365 or Google Workspace.
    Downloads: 1 This Week
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  • 9
    Kurrier

    Kurrier

    Workspace for email, calendar, contacts and storage

    Kurrier is a self-hosted, open-source workspace that brings email, calendars, contacts, and file storage into a single modern web interface while keeping your data under your control. It’s designed to sit on top of standard protocols and services rather than replacing them, connecting to mail providers through IMAP/SMTP and supporting outbound delivery options such as SES or popular transactional email providers. For personal information management, Kurrier syncs calendars via CalDAV and...
    Downloads: 0 This Week
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  • 10
    Calendar Calc v2.0

    Calendar Calc v2.0

    Date utilities for any calendar task

    CalendarCalc represents a significant leap forward in digital time management and chronological calculation tools, offering a refined and powerful user experience directly on your Windows desktop. Designed to bridge the gaps left by traditional calendar applications, this utility focuses specifically on the mathematics of time, allowing you to instantly solve any query related to durations, intervals, and international holiday occurrences. With an advanced calculation engine and a fluid cross-platform interface, the app enables you to determine with surgical precision the exact number of years, months, weeks, and days between any two dates, eliminating the risk of human error in manual calculations. ...
    Downloads: 1 This Week
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  • 11
    Apache OpenOffice Templates

    Apache OpenOffice Templates

    Thousands of ready to use Apache OpenOffice templates

    The official catalog of Apache OpenOffice templates. You'll find templates ranging from letters and résumés to calendars and brochures. Templates can save your time, and are easy to use.
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    Downloads: 6,500 This Week
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  • 12
    GO Contact Sync Mod

    GO Contact Sync Mod

    Sync Outlook contacts and calendars with Google

    Please install the latest version >4.0, because it uses the new Google People API. The Google Contacts API is now deprecated and is scheduled for sunset on June 15, 2021. GO Contact Sync Mod synchronizes your Microsoft Outlook contacts with your Google Mail address book, including pictures, categories and contact notes. It also syncs your Outlook Calendar Appointments on demand to Google Calendar. This Mod fork adds many enhancements and bug fixes to the obviously dead project 'Go...
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    Downloads: 676 This Week
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  • 13
    Email to Event - ETE

    Email to Event - ETE

    The python App/Skrypt automaticly add important events into calendar.

    It is use AI running localy and model you can choose. Skrypt have a tool for automatic add to scheduler. It now not working with Microsoft outlook and Google gmail, for certifications and API polici reasons . Fuly tested on Seznam.cz* services, if you have difrent provier with same type of security it will be working. *Email is using standart IMAP, Calendar use iCalendar API and authentification method. Fast setup: 1. Download and unpack 2. Install LM studio - recomended for GPU...
    Downloads: 2 This Week
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  • 14
    SALATI

    SALATI

    Prayer Times for iPhone and Android built-in Calendar

    Add Prayer Times to your built-in Calendar App. Many Countries and Cities available via https://salati.de SALATI provides prayer times as iCal File Format that can subscribed to your Calendar for all platforms supporting webcal and ics Format like Outlook, Apple Calendar, Google Calendar, iOS and Android. Free Service
    Downloads: 0 This Week
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  • 15
    Osmo
    Osmo is a handy personal organizer, which includes calendar, tasks manager, address book and notes modules. It was designed to be a small, easy to use and good looking PIM tool to help to manage personal information.
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    Downloads: 10 This Week
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  • 16
    DavMail POP/IMAP/SMTP/Caldav to Exchange
    Ever wanted to get rid of Outlook ? DavMail is a POP/IMAP/SMTP/Caldav/Carddav/LDAP gateway allowing users to use any mail client with Exchange and Office 365, even from the internet through Outlook Web Access on any platform, tested on MacOSX, Linux and Windows
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    Downloads: 624 This Week
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  • 17
    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...
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    Downloads: 559 This Week
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  • 18
    WeekNumber

    WeekNumber

    Windows 11/10 system tray area app that displays the current week no.

    Always see the current week number in the system tray area in Windows taskbar and lookup the week number for any other date via double-click on the application icon. Options to start with Windows, customize icon colors, language, notifications, automatic updates, calendar rules and more.
    Downloads: 43 This Week
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  • 19
    EasyCalendarBudget

    EasyCalendarBudget

    Personal Finance and Budgeting Program with a Calendar View

    With Easy Calendar Budget, you can view your dollar balances any day - even into the future. Simply enter your starting account balance, add your transactions, then view the calendar or reports. Profit and Loss reports can be printed, of a date range of your choosing. A platform independent and portable program, that works by running locally on your computer. (Please note: This program was written in Java, and so requires Java to be downloaded and installed once to run. Eg. available...
    Downloads: 0 This Week
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  • 20
    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: 12 This Week
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  • 21
    Calizo is a calendar with a zoomable timeline. Unlimited zooming allows to manage historic, genealogical, biographic data, everyday tasks, projects or life plans - for scheduling, genealogy, project management, todo lists, link- and file- organizatio
    Downloads: 1 This Week
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  • 22
    LunarCalendar

    LunarCalendar

    Use Qt write lunar calendar.

    Use Qt write lunar calendar. The repository is only read mirror of github. Main repository: https://github.com/KangLin/LunarCalendar .
    Downloads: 1 This Week
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  • 23
    Defalto

    Defalto

    Fast, modular open source CRM for growing businesses

    Defalto CRM, developed by IT-Solutions4You, is a modern and modular open source CRM system built on over 15 years of real business and CRM development experience. Designed for companies of all sizes, it helps teams manage sales, projects, and customer relationships efficiently through a clean, intuitive interface. The platform combines professional know-how with modern design and functionality. Its free core modules cover essential CRM features, while optional add-ons expand capabilities...
    Downloads: 17 This Week
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  • 24
    EORTOLOGIO-HMEROLOGIO v.3.5.5-AllSeasons

    EORTOLOGIO-HMEROLOGIO v.3.5.5-AllSeasons

    GReortes is a powerfull Greek calendar application (Linux 64bit)

    GReortes 3.5 is a Greek personal calendar and religious holidays application for Linux 64bit OSs written in C ! Tested successfully on many popular distributions ( Ubuntu , Debian, MX Linux, Arch, Linux Mint , EndeavourOs, Pop-OS, Zorin, Fedora, KDE Neon , Kubuntu etc.) Allows the user to keep a personal diary for which data can be searched anytime. Code : https://github.com/fanisatt/EORTOLOGIO-GR (See latest version 3.5) Details in Greek ....
    Downloads: 3 This Week
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  • 25
    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...
    Downloads: 97 This Week
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