SaaS stands for Software as a Service, a cloud-based model that delivers software applications over the internet. Instead of installing and maintaining software on local devices, users access applications via a web browser, typically through a subscription-based model. This approach ensures seamless updates and scalability, making it ideal for businesses looking to reduce IT overhead and improve accessibility. SaaS applications cover a wide range of functions, including CRM, project management, and accounting, enabling organizations to operate more efficiently and effectively.