A technology is described for a software container recommendation service. An example method may include collecting utilization metrics for an application hosted on a computing instance. The utilization metrics may be a measure of computing resources used by the application. The utilization metrics may be analyzed to determine a level of computing resources for the computing instance used by the application. A software container configuration for the application may be determined based at least in part on the utilization metrics when analysis of the utilization metrics indicates an underutilization of computing resources by the application. The specifications of the software container configuration may then be provided to a customer.