LibreBooking is an open-source resource scheduling solution. It provides a flexible, mobile-friendly, and extensible interface for organizations to manage resource reservations. The "develop" branch contains the latest code of the project.

GPL-3.0

PHP

OpenEMR

The most popular open source electronic health records and medical practice management solution.

GPL-3.0

PHP

Alf.io

Ticket reservation system.

GPL-3.0

Java

QloApps

An open-source, customizable and intuitive web-based hotel reservation system and a booking engine.

OSL-3.0

PHP

Seatsurfing

Webbased app to book seats, desks and rooms for offices.

GPL-3.0

Docker

Baïkal

Lightweight CalDAV and CardDAV server based on sabre/dav.

GPL-3.0

PHP