OnoBooking

OnoBooking is a free, web based application used to help small business owners take online bookings and reservations from their existing site. Small business owners have access to a web based admin panel so that they can manage their booked appointments, as well as communicate with customers who have made a reservation. The software and support is free to all small businesses.

Requirements:

Your own website where you have control over the HTML and can add a piece of code to associate your site with your OnoBooking account.

Limitations:

Full version is free, no restrictions.