Suggest an editImprove this articleRefine the answer for “What is Docker Engine?”. Your changes go to moderation before they’re published.Approval requiredContentWhat you’re changing🇺🇸EN🇺🇦UAPreviewTitle (EN)Short answer (EN)**Docker Engine** is the core mechanism of Docker that runs and manages containers: it handles their creation, startup, stopping, isolation, network settings, and storage of containers and their images. **Key point:** Docker Engine is the "heart" of Docker that carries out all container operations.Shown above the full answer for quick recall.Answer (EN)ImageDocker Engine is the core mechanism of Docker that runs and manages containers. It handles the creation, startup, stopping, isolation, network settings, and storage of containers and their images. It consists of three key parts: 1. **dockerd (the daemon)** - a background process that does the main work: manages images, containers, networks, and volumes. 2. **Docker CLI** - a console interface (the `docker` command) used by a person. It sends requests to the daemon. 3. **REST API** - an interface through which the CLI and other programs communicate with the daemon. How it works in one sentence: **CLI → (request) → Docker Engine → (result) → running container.** In other words, Docker Engine is the "heart" of Docker that carries out all container operations.For the reviewerNote to the moderator (optional)Visible only to the moderator. Helps review go faster.