Business

Events and Scheduling

Cal.com
8.5

Cal.com is a versatile scheduling tool that simplifies appointment booking for individuals and teams, enhancing productivity and coordination.

Activity

Maturity

License: AGPL-3.0


35438
450
Has commercial version
TypeScript
CSS
HTML
MDX
Indico
7.4

Indico: Versatile platform for event management, featuring tools for event organization, scheduling, paper reviewing, and seamless collaboration.

Activity

Maturity

License: MIT


1858
106
In-house OSS project
Python
JavaScript
HTML
QloApps
7.1

QloApps is a comprehensive hotel management software that simplifies booking, reservation, and management processes for hospitality businesses.

Activity

Maturity

License: OSL-3.0


4667
13
Has commercial version
PHP
Smarty
JavaScript
Rallly
7

Rallly is a scheduling tool that simplifies organizing events and meetings with friends or colleagues through collaborative polls.

Activity

Maturity

License: AGPL-3.0


4163
29
Has commercial version
TypeScript
MDX
JavaScript
Easy!Appointments
6.9

Easy!Appointments is a web application for efficient appointment booking, management, and scheduling with seamless Google Calendar sync.

Activity

Maturity

License: GPL-3.0


3564
89
Provides commercial services
PHP
JavaScript
CSS
SCSS
Open Event Server
6.8

A scalable server to organize and manage events, with features for scheduling, ticketing, and attendee management.

Activity

Maturity

License: GPL-3.0


3001
220
Has commercial version
Python
HTML
Shell
Alf.io
6.7

Effortlessly manage events, registrations, and payments with alf.io—a powerful, user-friendly event management platform.

Activity

Maturity

License: GPL-3.0


1473
53
Donations
Java
HTML
JavaScript