Journey Builder is a marketing automation tool that helps businesses create personalized customer experiences. It allows marketers to design and manage customer journeys by mapping out interactions across various channels, such as email, SMS, and social media. This ensures that customers receive relevant messages at the right time based on their behaviors and preferences. With Journey Builder, users can visualize the entire customer journey, making it easier to track engagement and optimize campaigns. The tool offers features like audience segmentation, automated responses, and performance analytics, enabling businesses to enhance their marketing strategies and improve customer satisfaction.