Docker is an open platform container manager that enables developers and system coordinators to oversee the function of all the containers. It is accessible by any language and toolchain. Virtual Machines provide a software platform that developers use to go through an Operating System (OS). It utilizes an entire OS and has a singular non-shareable host kernel. Whereas in Docker, one OS can handle numerous workloads. Docker also allows one host kernel to be shared by multiple containers. In terms of storage space required, containers in Docker take up less space than Virtual Machines. Docker’s ability to operate from a single server gives it an upper hand over Virtual Machines. Hence, Docker is relatively better than Virtual Machines.