Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Responsinator - Designed to test responsive websites on different devices.
Eventzilla - Eventzilla lets you sell tickets online and manage attendees from one integrated application.
Responsive Website Test - Test any website on desktop, mobile, and tablet
Splash - Anyone can create a Splash event, whether you're a company hosting a single event or an individual hosting a personal event like a birthday or wedding. Get Started for Free. Text goes here. X. Full Event Program.
I Love Adaptive - See how the site is displayed on different devices