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.

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 for advanced business needs. Defalto CRM supports both on-premise and cloud deployment, offering full flexibility and data control. Source code available at: https://github.com/IT-Solutions4You/defalto

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.

Zimbra is an open source server and client technology for next-generation enterprise messaging and collaboration. Please see www.zimbra.com for the latest news and downloads.

Kalibro is an open source free software to manage devices and tools for calibration and maintenance records. It helps you to keep inventory and reminds you the scheduled dates. Kalibro also helps you to satisfy the requirements of the Quality Management Standards like ISO9001, AS9100 and TS16949. Manufacturing, Quality and IT departments of small/medium sized companies are targeted to use Kalibro. You do not need to use spread sheet files to save your critical calibration records. See the Kalibro website (http://www.ozanh.com/kalibro) for further details.

Create Bills, Invoices. Manage Customers, Suppliers Manage Inventory(Product quantity, sale etc) Design Your own Bill format(Draw your bills) Set of reports(Daily, Monthly, Customer, Supplier) Scheduler Phonebook.

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.

Web based Veterinary Clinic Management software. Includes clients, pets, inventory (especially medicine), appointments, document management, invoicing, grooming, and boarding. More features will be added. Future features can be requested. PLEASE NOTE: The files are a Beta version. Please refer to VetClinicNews for more information. Thank you.

Portable version of VtigerCRM executed from a USB flash drive. No install required and save all changes. Versión portatil de VtigerCRM que se ejecuta desde una memoria USB. No requiere instalación y guarda los cambios

PilotGenerator génère des feuilles de pilote, permettant de visualiser les employés présents sur différents postes pour chaque journée. Prend en entrée un planning avec les horaires d'arrivée et de départ de chaque employé.

I haven't looked at this in a while, so use at your own risk. Appointment Keeper is a web-based appointment scheduling system intended for small medical offices. It allows for multiple providers and a variety of searching and sorting functions.

Business groupware (bgroupware) is a spin-off of the well known phpgroupware. This has been done for architecural and other reasons to keep imporvements alive that have been done by some professional ex-developers from a known company.

CLIGRAPHCRM is a CRM web based. Open source CeCILL-C licence. It provides reports with graphs, sales-management, marketing campaigns with e-mailing, data export,internal news,etc.. online demo at http://www.projetcligraphcrm.com/clt1 user : demo34 pass :

CentraView - Browser based Enterprise Java (J2EE) Contact Management, Groupware, Collaboration, CRM, SFA, Project Management software. Run locally or as a hosted service. Built on Apache Tomcat, JBoss, MySQL, Linux (Fedora, RedHat and others) & Windows

Computer Repair CRM Open Source Project, A active web based customer management, trouble ticket and billing system for independent computer repair and service professionals and businesses based on the CiteCRM platform which ceased developement last year.

Diese schlanke und kostenlose Excel-Tabelle erlaubt es, für bis zu 20 Personen einen 24 Stunden Dienstplan zu erstellen. Die Software Berücksichtigt dabei Wünsche, Abwesenheit und Rufbereitschaften der einzelnen Personen. Nachdem eine Übersicht erstellt wurde, wird der Dienstplan mit der optimalen Verteilung der Dienste erstellt. Hierbei werden Feiertage und Wochenenden Berücksichtigt. Die Software ist nutzbar für alle Monate und Jahre.

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

EGGcrm is an open source CRM web based. It provides reports with graphs, sales-management, e-mailing/webmail, data export, internal news, etc.. Online demo at www.eggcrm.net

This application can create any year calendar after the year 1759. Special feature: => Calendar creation in mass.

Add events from SugarCrm (Meetings,Calls,Tasks) to an Google Calendar account ... with SMS alert enabled.

OBM is a groupware, email, LDAP, Windows PDC, CRM, and project application mainly used as an Exchange or Notes/Domino replacement with groupware connectors for Outlook, Thunderbird/Lightning, and PDAs. It is highly scalable up to many thousands of users

A team collaboration system that allows your team to share information with each other easily. It is built by all open-source software acquired from this site. I simply put [software] things together with additional php coding to bring it all together. Y

OpenCustomer is a Web-based customer relationship managment (CRM) application, using Mysql and Java/Tomcat. (Online Demo available)

Originally a reimplementation of OpenGroupware's ZideStore. While compatible with legacy ZideStore Coils provides a sophisticated workflow system with ETL and integration capabilities and superior WebDAV/CalDAV features and compatibility. The workflow engine suppports processes described in BPML and provides integration with a variety of services include SSH, LPD, LDAP, and relation databases.