Arcane vs Portainer

Arcane is a Docker management dashboard that showed up recently and got popular fast. It is written in Go with a SvelteKit front end, licensed BSD-3-Clause, and it runs as a single container that talks to your Docker socket. The pitch is simple: a clean, modern UI for containers, images, volumes, networks, and Compose stacks, plus the access-control features Portainer reserves for its paid edition, all for free.

The reason it caught on is the gap it fills. Portainer Community Edition is free, but its UI feels dated and its real access control is a paid feature. Dockge is lighter but deliberately minimal and Compose-only. Arcane sits in the middle: more polished than Portainer CE, more capable than Dockge, and it does not ask for a license to give you single sign-on and per-user roles. For a homelab that runs Docker and wants those things without paying, that combination is the draw.

One boundary to set up front: Arcane is Docker-focused. It handles Docker and Docker Swarm and nothing else. It has roughly 7,000 GitHub stars and moves quickly, with frequent releases. That youth cuts both ways, which is the theme of this whole comparison.

Kubernetes is the first and biggest gap. Portainer manages Kubernetes as well as Docker and Docker Swarm from the same interface. Arcane does not touch Kubernetes at all. If any part of your setup runs k3s or full Kubernetes, that alone settles it, and the orchestrator question itself is worth reading first in Kubernetes vs Docker Swarm.

Maturity is the second. Portainer has been around since 2016, has over 30,000 GitHub stars, and runs in production shops everywhere. That means deep documentation, a decade of forum threads for when something breaks at midnight, and a commercial Business Edition with actual support and SLAs behind it. Arcane is young, so the answers are thinner and you are more likely to be the first person to hit a given bug.

The ecosystem rounds it out. Portainer has app templates, registry integrations, webhooks, and years of hardened edge cases that a newer project simply has not had time to accumulate. None of that is flashy, but it is the difference between a tool that works and a tool that has been made to work in thousands of odd environments.

This is where Arcane makes its strongest case. Portainer Community Edition gives you local users and OAuth login, but genuine role-based access control, teams, and LDAP/AD binding are Business Edition features. Business is free for up to 3 nodes, and there is a free Home & Student license that unlocks Business features for up to 15 nodes for non-commercial use. So a homelabber can get RBAC free through Home & Student, but a small business past three nodes has to pay for it.

Arcane ships OIDC single sign-on and role-based access in the free, BSD-licensed build, with no tier and no node count attached. If you want to hand out least-privilege access, or wire logins to Authelia, Authentik, or Keycloak, it is there on day one. That is a real cost difference for anyone who needs proper access control on a commercial box.

The honest caveat: Arcane's multi-user and team management are newer and still maturing, so if fine-grained, per-team permissions are load-bearing for you, test them against your actual requirements before you commit. Portainer's RBAC has had years to settle. Arcane's is free but younger.

Both manage more than one host. Portainer uses its own agent, plus an Edge agent for remote environments. Arcane uses a manager-agent model: lightweight agents run on remote Docker hosts, and in Edge mode the agent connects outbound to the manager over gRPC or WebSockets with mTLS, so the remote host needs no inbound port opened. That outbound design is genuinely handy for hosts sitting behind NAT or a restrictive firewall.

On Swarm and Compose, Arcane holds its own. It has native Swarm support, a Compose editor, and a Compose Generator that scaffolds stacks for you. It also includes GitOps sync that pulls Swarm stacks and Compose projects from a Git repository, which on Portainer is a Business Edition feature. If you want git to own your deployments and the UI to just apply them, Arcane gives you that workflow for free.

Both install as a single container in a couple of minutes. Arcane is a small docker compose file using the ghcr.io/getarcaneapp/arcane image, published on port 3552; bring it up and open http://your-server-ip:3552. Portainer runs its CE container, listens on https://your-server-ip:9443, and asks you to set an admin password on first load. Neither is hard, and you can run both side by side on the same host since each just talks to the Docker socket.

One trap applies to either tool. If you edit Compose stacks in the browser and also keep those files in git, the two drift apart and you stop knowing what is actually deployed. Pick git as the source of truth and treat the UI as read-mostly, or use the built-in Git sync (free in Arcane, Business in Portainer). For the deeper GUI-versus-terminal argument, read Portainer vs the Docker CLI; for a lighter, Compose-first UI in the same family, see Dockge vs Portainer.