One of the primary advantages of using containers in software development is their portability. Containers encapsulate an application and its dependencies, ensuring consistent behavior across different environments. They also promote scalability, allowing developers to deploy multiple instances easily. Furthermore, containers enable resource efficiency by utilizing the underlying operating system's kernel, reducing the overhead associated with traditional virtual machines. This leads to faster development cycles and easier collaboration among teams. The isolation offered by containers also enhances security by limiting the impact of vulnerabilities. Overall, containers streamline the development process and improve deployment flexibility.