An event management system (EMS) is a software application that helps you plan, promote, and produce events. From festivals and conferences to concerts and corporate functions, EMSs are designed to make your event planning process easier and more efficient. While each EMS is different, most offer features like online event registration, ticketing, and website integration. Some EMSs also offer features like event marketing and promotional tools, on-site check-in and badge printing, and post-event reporting.