* [Docker Hub](https://hub.docker.com) — One free private repository and unlimited public repositories to build and store Docker images
* [quay.io](https://quay.io/) — Build and store container images with unlimited free public repositories
* [canister.io](https://canister.io/) — 20 free private repositories for developers, 30 free private repositories for teams to build and store Docker images
* [Whales](https://github.com/Gueils/whales) - A tool to automatically dockerize your applications for free.