Exit intent popups are website features that detect when a user is about to leave and trigger a last-minute message or offer. These popups aim to retain visitors by displaying discounts, lead capture forms, or personalized recommendations. Using behavioral tracking, exit intent popups analyze cursor movements and scrolling patterns to determine when to trigger the message. E-commerce brands often use them to reduce cart abandonment, while content websites use them to encourage newsletter subscriptions. Tools like OptinMonster and Privy integrate exit popups with CRMs to capture and nurture leads. When used effectively, exit intent popups can significantly improve conversion rates and reduce bounce rates.