LibreBooking
LibreBooking is an open source resource scheduling solution that brings reservation management and scheduling together in a single interface. Organizations can use it to manage bookings for their resources and accommodate different scheduling requirements. Its mobile-friendly design supports managing reservations on mobile devices, while the extensible interface allows the software to be adapted as an organization’s resource management needs change. LibreBooking is released under the GPL-3.0 license. The program is intended for organizations that need a flexible way to manage resource reservations rather than users looking for a narrowly defined personal calendar. It is focused specifically on resource scheduling and booking management; the available information does not indicate that it includes broader organizational functions outside those areas. No direct paid-product replacement is identified.