An Online RSVP is a digital method for guests to confirm their attendance at an event, such as a wedding or party. This process typically involves filling out a form on a website or through an email link, allowing hosts to easily track responses. Using an Online RSVP system can streamline event planning by providing real-time updates on guest numbers. It often includes features like meal choices and special requests, making it convenient for both hosts and attendees. Popular platforms for managing RSVPs include Eventbrite and Google Forms.