FullCalendar - FullCalendar is an open-source JavaScript event calendar.
Time Slot Booking Calendar PHP - Time Slots Booking Calendar PHP for online appointment booking and class scheduling.
Dudle - Dudle is an online scheduling application, which is free and open source.
Smart Scheduling - Free scheduling software for spas, hair & beauty salons. Best online booking & calendar app. 100% FREE salon software. Try it Now!
PHP GZ Appointment Scheduling Script - PHP GZ Appointment Scheduling Script Web based scheduling software that runs on your web site.
Appointy - Appointy is an advanced web-based scheduling software tool.