Docker Engine

What Docker Engine is

Docker Engine is a free container runtime for Linux, macOS, and Windows platforms. It builds container images and runs through the Docker runtime interface. The engine supports both listed image formats, giving teams the image-format choices identified for the product. Rootless mode allows operation without root privileges. Docker Engine also supports the Kubernetes Container Runtime Interface, so it can be used in environments built around that interface. Windows containers are supported in addition to the listed platform availability. The supported host operating systems are Linux and Windows Server, which matters when selecting a deployment host. These capabilities cover image creation, container execution, rootless operation, Kubernetes runtime integration, and Windows-based container workloads. Docker lists a free plan for Docker Engine, and no paid tier is specified in these facts.

Who it suits

Docker Engine suits developers and operations teams building or running containers on Linux, macOS, or Windows. It also fits environments requiring rootless operation, Kubernetes CRI support, or Windows containers.

Getting started

1. Visit Docker’s container runtime product page.
2. Choose the listed platform that fits your environment: Linux, macOS, or Windows.
3. Deploy on a supported host operating system: Linux or Windows Server.
4. Build container images and use the Docker runtime interface as needed.

Verdict

Docker Engine provides the core container runtime and image-building capabilities listed here at no charge. Check the host operating-system requirements before deployment.