Capsules, in the context of computing, are lightweight containers that package software applications and their dependencies. They allow developers to create, deploy, and run applications consistently across different environments. This ensures that the software behaves the same way regardless of where it is executed, whether on a developer's laptop or in a cloud environment. These containers are often associated with technologies like Docker and Kubernetes, which facilitate the management and orchestration of multiple capsules. By using capsules, organizations can improve efficiency, scalability, and resource utilization, making it easier to develop and maintain complex applications.