Docker Desktop's 2022 licensing change (requiring paid plans for companies with 250+ employees or $10M+ revenue) pushed many teams to evaluate alternatives. In 2026, several options are production-ready.
Podman is the most direct Docker CLI replacement. It's daemonless — containers run as regular OS processes, no root daemon required. Docker CLI commands map 1:1, so migration is a find-and-replace in scripts. Red Hat backs it, and it ships by default on RHEL. The main gap: Docker Desktop's GUI and Docker Compose compatibility (though Podman Compose exists). AWS Finch is Podman wrapped with a polished macOS CLI. If your team lives in the AWS ecosystem and wants something that just works on Mac, Finch is the lowest-friction transition.
Nix and Nix Flakes take a fundamentally different approach — declarative, reproducible builds that can output OCI images without Docker at all. The learning curve is steep (Nix has its own language), but the payoff is hermetic builds that reproduce identically across developer machines, CI, and production. Fly.io and several infrastructure teams have standardized on Nix for this reason.
For Kubernetes-native workflows, containerd and cri-o are the container runtimes that power most production clusters — Docker was just a wrapper around them. If you're running k8s, you may not need Docker at all beyond building images.
The practical 2026 answer: Podman for teams wanting a free Docker replacement, Finch for AWS-heavy Mac teams, Nix for infra teams who prioritize reproducibility over simplicity.