FullCalendar - FullCalendar is an open-source JavaScript event calendar.
Dudle - Dudle is an online scheduling application, which is free and open source.
Pulse 24/7 - Booking & scheduling mobile app for service providers
Smart Scheduling - Free scheduling software for spas, hair & beauty salons. Best online booking & calendar app. 100% FREE salon software. Try it Now!
MakePlans - Online appointment booking - MakePlans
Checkfront - Checkfront is built for Tour & Activity Operators, Rental companies and Accommodation providers. Manage your inventories online, centralize reservations, process payments and get unified access to leading distribution channels.