Portainer: manage every Docker container without touching the command line

A VPS hosting two or three services is easy to manage from the command line. Past a dozen containers, quickly figuring out which one is eating too much memory or why one of them restarted gets harder without an interface. Portainer answers exactly that need.

What Portainer actually gives you

• An at-a-glance overview: every container, its status, its CPU/RAM usage, on a single screen.
• Logs without SSH, handy for quick troubleshooting or for giving someone read access without giving them root on the server.
• Stack deployment through a built-in compose editor, with a history of deployed versions.
• Managing multiple Docker hosts from one interface — useful as soon as you run more than one server, like infrastructure spread across several VPS instances.

Portainer vs. Coolify-style panels

Portainer and Coolify don't play quite the same role: Coolify orchestrates application deployment (build, domains, certificates), while Portainer focuses on low-level visibility and control over containers, regardless of what created them. The two coexist fine — plenty of self-hosted setups use Portainer precisely to keep an eye on what a tool like Coolify deployed.

Who it's for

If your stack fits in three containers managed by a single tool, Portainer is probably overkill. Once it grows and spreads across several servers, a centralized view quickly becomes worth it again.