Open Source Calendar Software

Bootstrap-datepicker provides a flexible datepicker widget in the Bootstrap style. Versions are incremented according to semver. As with bootstrap’s own plugins, datepicker provides a data-api that can be used to instantiate datepickers without the need for custom javascript. You can disable datepicker’s data-api in the same way as you would disable other bootstrap plugins. Most options can be provided via data-attributes. An option can be converted to a data-attribute by taking its name, replacing each uppercase letter with its lowercase equivalent preceded by a dash, and prepending “data-date-” to the result. Methods are called on a datepicker by calling the datepicker function with a string first argument, followed by any arguments the method takes.

PHP driven Inventory, HelpDesk, Support, Issue Tracking, and Knowledge Base web application. Focuses on simplicity and ease of customization. Sort of a mini-Directory solution for SMBs using PHP and any Pear::DB supported database.

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.

PHPWebCalendar is a feature rich events calendar using AJAX to display events. Features include: advanced events system, admin panel, a portal page, news, upcoming events, multiple calendars, simple API, RSS feeds, web based instal and a whole lot more!

chklinks is a non-threaded Perl link checker. It helps finding broken links on your website. It does not raises many simultaneously connections for its job, run out of the resources and crash your system in a moment.

Calendar lib is a poweful multilingual web PHP-Calendar-Class.Highlight special events-Forward and Backward navigation between months and years. Appearance set by CSS style sheet. With optional AJAX navigation. Visit http://www.tsql.de

ASP Calendars is a simple, easy to use ASP Calendar Control for ASP .NET 2005. ASP Calendars can be described as a scheduler control that holds a calendar of events in a nice graphical interface

The Crosswise project is a web-based community event calendar that adds modular data analysis and visualization, and communication methods, to provide community organizations with a powerful event planning, collaboration and analysis tool.

phpMyAgenda is a complete web application that allows you to manage and publish events (concert, meetings, etc...). It stores description, dates, places, contacts, event registrations, and event polls.

A PHP script that uses a mySQL database and generates Monthly, Weekly, Daily calendars. It also has the ability to export the calendar to PDF so you can print them off or just save them on your computer.

Electronic Activities Board is a web-based calendar and an event management system for both personal and corporate use.

Event Calendar plugin for Wordpress. Use Wordpress to manage future events as an online calendar. Display upcoming events in a dynamic calendar, on a listings page, or as a list in the sidebar. You can subscribe to the calendar from iCal or Sunbird.

Extranator is a PHP application used to create extranet/intranet solution.

This is a simple DHTML javascript date picker, for easy selection of ranges of dates, including year, month, day from-to and weeks. Inspired by the date range picker at google analytics.

A very lean but very flexible, designable and extensible group calendar php-webapplication for clubs to manage their events and event participation. It allows easy integration with other applications and features single-sign-on.

Ozcode is the source code behind Ozmozr.com, a microformat-aware RSS aggregator, social networking, resource sharing, identity aggregation and presentation site.

It's professional Extensions modules for Egroupware : Issue, decision and risk mgmt,Meeting Agenda/Report,Project Capitalisation PDF for every egw modules, objective mgmt, project team and calendar, dashboard, ISO 15504 SPICE Process Description

RC Calender Plugin is a Roundcube Webmail plugin to schedule events. It is written in PHP and implements web standards such as XHTML and CSS.

RDVZ is a web application for meeting organization between several users. It works through an easy poll system to find the best meeting dates.

A system for creating and administrating membership and bookings of a ski club.

SPM for XOOPS is a set of XOOPS modules (collaboration management, document management, tasks organizer, events calendar, etc) to manage projects and all related tasks with them.

SuperCali is a PHP / MySQL event calendar that supports nested categories of events and multiple moderators, making it a good choice for organizations managing a large number of activities. SuperCali is designed to make data entry as easy as possible.

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.

VTCalendar is a web-based event calendar that allows for decentralized data input and includes an approval mechanism. It supports calendar hosting for individual organizations and the forwarding of events from these calendars to the main event calendar.

cmappCalendar is a very fast calendar (including an events management feature) developed using object orientated PHP. It is especially suited for websites which demand performace.