SaaS, or Software as a Service, is a cloud-based software delivery model that allows users to access applications over the internet. Instead of installing and maintaining software on individual computers, users can simply log in to a web browser to use the software. This makes it easy for businesses and individuals to access the latest features and updates without worrying about hardware requirements or software maintenance. One of the main benefits of SaaS is its flexibility. Users can typically subscribe to services on a monthly or annual basis, allowing them to scale their usage up or down as needed. Popular examples of SaaS include Google Workspace, Salesforce, and Dropbox, which provide tools for collaboration, customer relationship management, and file storage, respectively.