Bitnami is a software library that provides pre-configured, ready-to-run versions of popular open-source applications, such as web servers, content management systems, and e-commerce platforms, making it easier for developers to deploy and manage complex software stacks. By simplifying the installation and configuration process, Bitnami saves developers time and effort, allowing them to focus on building and deploying their applications, which is particularly useful for DevOps teams and developers working on web development projects.