Open Source Calendar Software

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/

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.

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.

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.

openCRX moved to https://github.com/opencrx

Kimai is web based software that tracks work time, and classifies it. It tracks time and prints out a summary of your activities on demand. Yearly, monthly, daily, by customer, by project, by action. FETCH THE LATEST DOWNLOAD FROM GITHUB: https://github.com/kimai/kimai/releases Record expenses and print customizable invoices in different formats. For further information visit: - https://www.kimai.org - https://www.kimai.cloud - https://github.com/kimai/kimai

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).

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.

Joomla component (1.0.x, 1.5.x) designed to embed the booking / availability / reservation calendar of www.shared-house.com on a Joomla site. The calendar is designed for holiday / vacation home owners who wish to display availability to potential renter

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.

The DAViCal CalDAV & CardDAV Server is a repository for calendar, todo, journal and vcard entries to be accessed via CalDAV clients such as Evolution, Lightning, Apple iCal or the iPhone. You need to download both DAViCal & the AWL library.

Julian is a calendar module for Xaraya, based on xarcalendar/PostCalendar. It has Day, Week Month and Year views with custom starting days. Julian includes blocks for the month, Today's and Upcoming events. User can subscribe to categories of events.

Sillaj is a PHP time tracking tool. It allows to register time on projects and tasks and create reports and Gantt charts. Sillaj is multiuser and multilanguage, uses a database and is themable through Smarty templates. It is distributed under the GPL.

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.

Extended version of the ccal-function in linux, that also shows time and other cool stuff! Originally intended as a school project.

myPHPbirthday is a easy and fast birthday calendar. Can automated sends birthday reminders. Easy to integrate in your website.

IMPORTANT NOTE: project moved to http://code.google.com/p/webical/

NETOFFICE EIS: CRM/SRM Corporate AddressBook ; iCAL Corporate Calendar + Agenda ; eMSG MailBox Email + Fax Messagery ; DMS FileManager + Document Management ; EXTM ModExpress (modules / extra apps: financial, sales) ; CPanel administration ; Intercha