Event Planner is a MERN stack web application that helps users organize different types of events such as weddings, engagements, birthdays, and baby showers. Users can log in, choose their event, and browse services like venues, food, decoration, clothing, music, and flowers, then select options and receive a price estimate. On the other side, companies can subscribe and publish their services for a fixed fee. The platform acts as an intermediary, coordinating between users and service providers while adding a commission to the final quote.