Cal.com

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

Create polls to vote on dates and times (alternative to Doodle).

Allows your customers to book appointments with you via the web.

Event management and ticketing platform for conferences, concerts, and more. Offering customizable event pages and embeddable ticket widgets.

Ticket reservation system.

Presentation and assembly system for managing and projecting agenda, motions and elections of an assembly.

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