Salesforce Experience Cloud is a digital experience platform that allows businesses to create branded websites, portals, and apps for customers, partners, and employees by connecting them to Salesforce CRM data. It provides tools and templates for building these digital experiences, which can include e-commerce sites, help centres, and partner portals. Key benefits include the ability to manage and personalise experiences, streamline processes, and deliver a unified customer view by leveraging existing Salesforce data.