Ember

Ember vs Coolify, CapRover, Dokku/Dockge, Dokploy, Easypanel & Komodo

Ember is newer and smaller than every tool below — say that up front. This page is about where each one actually stands today, not a sales pitch dressed as a comparison.

Criterion Ember Coolify CapRover Dokku Dockge Dokploy Easypanel Komodo Kamal
Age / maturity New (2026) Since 2021, ~57.8k stars ~15.1k stars Since 2013, ~32k stars Newer, focused scope Since 2024, ~31k stars (fast-growing) Since 2021, commercial (freemium) Active (Rust/TS, GPL-3.0); v2 shipped 2026 Since 2023 (Kamal 2, 2024); MIT; ships as the default deployer in Rails 8, and 37signals runs HEY on it
Runs your compose file verbatim, no rewrite Yes — the whole point Import friction reported (.yml vs .yaml, include: unsupported, base-file load errors) Partial — its own app model Partial — buildpack-first model Yes, but see next row Yes — native Compose service type Partial — buildpacks + own schema (compose needs conversion) Yes — deploys compose “Stacks” No — its own deploy.yml manifest (primary app + accessories), not your compose file
Adds TLS + routing Yes, automatic (built-in) Yes Yes Yes No — Dockge is a container UI only, no TLS/routing Yes (Traefik) Yes (automatic HTTPS) Bring your own reverse proxy (not a bundled feature) Yes — built-in kamal-proxy (automatic SSL, zero-downtime)
Stores third-party cloud credentials No — none, by design Yes (deploy targets, registries, git providers) Yes (registries, git) Minimal (git remotes) No (local only) Yes (git providers, registries, DB manager, S3 backups) Yes (git, registries) Yes (git providers, registries, per-server agent access) No server-side store — registry + SSH creds live in your own local/CI config (.kamal/secrets), not a platform database
Admin surface exposed by default No — loopback-only until TLS + a credential are both set Yes, once deployed and exposed Yes N/A (CLI, no web dashboard) Yes, once exposed Yes, web dashboard once exposed Yes, web dashboard once exposed Yes, web dashboard (Core) once exposed No — no web dashboard at all (CLI, driven from your machine/CI over SSH)
2026 critical CVEs disclosed None (too new to have a track record either way) 11 critical flaws disclosed Jan 2026, several CVSS 9.4–10.0 (root RCE, private-key exposure); ~52,890 exposed hosts counted at the time None found in this pass None found in this pass None found in this pass CVE-2026-24841 (CVSS 9.9): authenticated command-injection RCE via the container-terminal WebSocket — unsanitized containerId/activeWay run as root; fixed 0.26.6 (Jan 2026). Plus a preview-deployments RCE advisory None found in this pass None found in this pass (no CVE on record for moghtech/komodo) None found in this pass
Update safety Atomic/reversible self-update: on the roadmap, not yet built (Ember here means updating the panel itself) Reported cases of updates corrupting the encryption key, wiping mounted directories, or bricking the instance (maintainer-acknowledged discussion + multiple issues) No major public incidents found in this pass No major public incidents found in this pass No major public incidents found in this pass No major public incidents found in this pass No major public incidents found in this pass No major public incidents found in this pass Zero-downtime rolling deploy with health checks; roll back with kamal rollback
Backup/restore is actually verified Yes — verify-restore boots a real restored copy before you trust it Restore commonly fails when the encryption key isn't preserved alongside the DB dump; community built a third-party restore tool Manual, not independently verified in this pass Manual, not independently verified in this pass N/A (no backup feature) Scheduled DB backups (to S3); restore not independently verified in this pass Not independently verified in this pass Not independently verified in this pass N/A — a deploy tool, holds no data of its own to back up
Idle footprint Single static binary, no database, no queue worker ~2 GB RAM recommended, ~1 GB idle before deploying anything Runs on a ~€10 VPS Lightest — happily runs on 1 vCPU / 1 GB Light (thin container UI) ~2 GB+ RAM recommended (Postgres + Redis + Traefik stack) Installs Docker Swarm + panel; no minimal figure verified in this pass Heavier — a separate MongoDB or FerretDB/Postgres database plus a central Core service and a Periphery agent on every managed server Minimal — nothing runs on the server but your app + a small kamal-proxy; no platform DB, no dashboard process
Multi-server orchestration, buildpacks, app marketplace No — deliberately out of scope for v1 Yes, extensive Yes Via plugins No Yes (clustering, buildpacks, templates) Yes (buildpacks, templates; multi-server is a paid tier) Yes — Core/Periphery is built to manage many servers Multi-server yes (SSH to many hosts); no buildpacks, no app marketplace, no dashboard

What this table means

Coolify, CapRover, and Dokku are all more capable, more feature-complete platforms today — multi-server deployment, buildpacks that build from source, app template marketplaces. Ember doesn't have any of that, on purpose: v1 is scoped to one job — take a compose file you've already written, run it exactly as written, add TLS and a dashboard, and be architecturally unable to repeat Coolify's worst 2026 incidents (root RCE from unsanitized input, an update that corrupts the encryption key, a UI checkbox that silently deletes a host directory). If you need multi-server orchestration or a build pipeline today, those tools do that and Ember doesn't. If you want the smallest, simplest thing that runs a compose file safely, that's the gap Ember targets.

Dokku and Dockge are the honest comparisons on scope, not on safety failures: Dokku has no web dashboard at all, and Dockge is a container UI with no built-in TLS or routing — Ember tries to sit between them (a real dashboard, but still just the one job).

Dokploy and Easypanel are the two fastest-growing entrants in this space, and both are genuinely more capable than Ember — Dokploy is an Apache-2.0 open-core PaaS (~31k stars) with clustering, buildpacks, databases and native Compose deploys; Easypanel is a polished commercial (freemium) panel built on Docker Swarm and buildpacks. But they also illustrate exactly the exposure Ember is built to avoid: Dokploy shipped a CVSS 9.9 authenticated command-injection RCE (CVE-2026-24841) where request parameters were interpolated straight into a shell and executed as root — patched in 0.26.6, January 2026. That is the same failure class as Coolify's root RCE, and it is the reason Ember's architecture keeps the admin surface on loopback until TLS and a credential are both set, stores no third-party credentials, and runs a compose file rather than shelling out with user-supplied strings. If you want multi-server orchestration, a build pipeline, or a managed control plane today, Dokploy or Easypanel do that and Ember doesn't. If you want the smallest, simplest thing that runs one compose file and is architecturally hard to turn into a root shell, that's Ember's lane.

Komodo (moghtech/komodo, GPL-3.0, written in Rust/TypeScript) is a capable, actively developed 2026 build-and-deploy system, and like Dokploy it is genuinely more powerful than Ember: its Core/Periphery design manages many servers from one dashboard with built-in CI/CD. That power comes with two architectural trade-offs Ember deliberately avoids. First, weight: a Komodo install is not one process — it needs a separate MongoDB (or FerretDB-on-Postgres) database plus a central Core service and a Periphery agent on every server it manages, where Ember is a single static Go binary with no database at all. Second, and closer to Ember's wedge: Komodo's protection against a destructive click is a single global switch — KOMODO_DISABLE_CONFIRM_DIALOG. Set it and the confirmation dialogs disappear from every action at once (they degrade to a double-click). Ember's safety gate is structural and per-action — not one on/off toggle you can turn off for the whole panel. No CVE has been disclosed against Komodo, so this is a design contrast, not an incident — but if what you care about is that a panel is hard to turn into an accidental (or malicious) root action, the shape of the safety mechanism is exactly what matters. If you need multi-server orchestration and a full CI/CD control plane today, Komodo does that and Ember doesn't; if you want the smallest thing that runs one compose file safely, that's Ember's lane.

Kamal (basecamp/kamal, MIT) is the odd one out here — and the most honest comparison on the page, because it is the tool that most shares Ember's instinct rather than illustrating the risk Ember avoids. Kamal is a CLI deploy tool from 37signals (it ships as the default deployer in Rails 8, and 37signals runs HEY on it), so it is battle-tested in a way Ember is not. Architecturally it agrees with Ember on the thing Ember cares most about: almost nothing runs on your server — no platform database, no dashboard process, just your app and a small kamal-proxy for TLS and zero-downtime switches. There is no web admin surface to expose or exploit at all. So this is not a “we’re safer” row; on footprint and attack surface Kamal is a peer. The honest difference is scope and shape: Kamal has no dashboard, and it doesn’t run your compose file — you describe a primary app plus accessories in its own deploy.yml and drive it from your workstation or CI. Ember’s bet is that some people want a dashboard on the box and want to run the compose file they already wrote, unchanged, without translating it into a new manifest. If you’re comfortable in a CLI-first, config-in-your-repo workflow and don’t want a panel at all, Kamal is excellent and you probably don’t need Ember. Two newer tools sit in the same CLI-first cohort worth naming for completeness: Haloy (a CLI talking to a small server daemon over HTTPS, layer-diff uploads, no dashboard — very new, small community) and Uncloud (a WireGuard-mesh multi-host orchestrator with its own registry-less image distribution, explicitly not production-ready as of 2026). Both are CLI-first with no web dashboard, the same structural difference from Ember as Kamal; neither is a single-server compose panel, which is the specific gap Ember targets.

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