An Event Scheduler is a software application that allows users to plan and schedule events. Event scheduler is a web-based application widely used by event organizers and venues to manage events. An event scheduler helps the organizers easily create and update an event, track its progress, manage attendees, invite guests to the event, manage venues for events and much more. An event scheduler may offer several features, including creating multiple calendars, creating custom categories, adding guests to an event, updating existing events with notes or reminders, and updating the event's status from private to public.