Coolify vs CapRover: Self-Hosting PaaS Compared (2026)

Coolify is the better default for solo devs and small teams replacing Heroku or Render. Faster release cadence (weekly vs monthly-to-quarterly), zero-Dockerfile deploys via Nixpacks, built-in database backups with S3, and a REST API that doesn’t need a CLI wrapper. CapRover still earns its place — it uses ~300 MB less RAM at idle, has a production-grade Docker Swarm integration, and has been running in production stacks since 2017. Pick CapRover if server RAM is your hard constraint or you already have a CLI-first workflow.

Who this is for

Solo developers and teams of 2–5 who want a self-hosted PaaS on a €4–$12/month VPS — specifically replacing Heroku, Render, or Railway with something you control. If you’re running Kubernetes or have a dedicated DevOps hire, both tools are beneath your stack.

How we tested

Versions: Coolify v4.1.2 (released 2026-06-04) and CapRover v1.14.2 (released 2026-05-14). Server: Hetzner CX22 — 2 vCPU, 4 GB RAM, 40 GB SSD NVMe, Ubuntu 24.04, €4.15/month. Idle RAM was measured with free -m five minutes after a fresh install with no applications deployed.

Overview

Coolify launched in January 2021 as a PHP/Laravel + Livewire application. By June 2026: 56,479 GitHub stars, ~474 contributors, weekly releases. It runs Traefik v2 as the reverse proxy and Nixpacks as its zero-config build layer.

CapRover shipped its first release in October 2017. TypeScript under the hood, Nginx as the proxy, deployed via Docker. 15,053 stars, ~65 contributors. Releases land monthly to quarterly — that lower cadence reflects a mature, stable core, not stagnation.

CapRover’s Docker Hub pull count — 100M+ vs Coolify’s ~100K — tells you which tool is embedded in more legacy production stacks. That’s context, not a recommendation: CapRover’s head start doesn’t make it the right choice for a greenfield deploy in 2026.

Installation UX

Coolify on Hetzner CX22

curl -fsSL https://cdn.coollabs.io/coolify/install.sh | bash

That’s step three. Steps one and two are “provision the server” and “SSH in as root.” The script auto-installs Docker CE, starts all Coolify services, and takes about three minutes. Dashboard is live at http://your-ip:8000. Add a DNS A-record, register the first user, and you’re deploying apps.

Time to first deploy: ~8 minutes from a cold VPS. Key gotcha: The install script requires root. It fails silently on non-root.

CapRover on any VPS

1. Install Docker CE (not the snap version — snap builds are broken):

   apt-get install docker-ce

2. Open firewall ports: 80, 443, 3000, 996, 7946, 4789, 2377.
3. Start the captain container:

   docker run -p 80:80 -p 443:443 -p 3000:3000 \
     -e ACCEPTED_TERMS=true \
     -v /var/run/docker.sock:/var/run/docker.sock \
     -v /captain:/captain caprover/caprover

4. Set up a wildcard DNS record: *.yourdomain.com → server IP. This is required — not optional. Per-app SSL won’t work without it.
5. Install the CLI: npm install -g caprover
6. Run caprover serversetup (interactive wizard).
7. Dashboard at http://captain.yourdomain.com (default password: captain42 — change immediately).

Time to first deploy: ~15 minutes on a clean server, longer if DNS propagation is slow. Key gotchas: You cannot run caprover serversetup after enabling HTTPS — use caprover login instead. Uncommitted files are excluded from caprover deploy (it ships a git-aware tarball).

Coolify wins on installation. CapRover isn’t hard, but the mandatory wildcard DNS and the npm CLI dependency add friction that trips up newcomers.

Supported runtimes & stacks

Coolify uses Nixpacks for build auto-detection. If your project has a package.json, requirements.txt, Gemfile, go.mod, or similar manifest, Coolify detects the runtime and builds without a Dockerfile. Supported languages include Node.js, Python, PHP, Go, Ruby, Rust, Java, .NET, Elixir, Deno, and Bun. You can override with your own Dockerfile or drop in a Docker Compose file — the compose file becomes the single source of truth for the deployment.

CapRover requires a Dockerfile or a captain-definition JSON file (a thin wrapper around a Dockerfile). Any language works, but you write the build steps yourself. The 348-app community one-click library covers most popular databases and services — four more entries than Coolify’s 300+ templates, though both libraries expand constantly.

The practical difference: Coolify gets most modern web frameworks deployed with zero Docker knowledge. CapRover requires either a Dockerfile or a one-click app. For experienced teams that’s no obstacle; for developers newer to containers, Nixpacks auto-detection is a genuine time-saver.

UI & dashboard

Coolify’s UI is a Svelte/Livewire app with clean dark-mode design. Resource overview, environment variable management, log streaming, and deploy history are well-organized. The REST API (Bearer token auth, five permission levels: root / write / deploy / read / read:sensitive) lets CI pipelines trigger deploys without a CLI shim.

CapRover’s dashboard is functional Bootstrap. Stable and navigable, but clearly dated. The API is marked experimental and is primarily accessed through the caprover CLI. Standard CD automation is caprover deploy, which tarballs the project and ships it. For teams integrating GitHub Actions or GitLab CI, Coolify’s GitHub App integration — a checkbox in the dashboard — is considerably faster to configure.

Reverse proxy & SSL

	Coolify	CapRover
Engine	Traefik v2	Nginx
SSL provider	Let’s Encrypt	Let’s Encrypt
Wildcard certs	DNS-01 challenge (Cloudflare, Route53, Hetzner, DO APIs)	Via wildcard A-record at DNS level
Custom proxy config	Traefik labels in compose file	Per-app nginx config file
Multi-server routing	Experimental load balancing	Docker Swarm native load balancing

Both handle SSL automatically. The difference is in flexibility: Coolify’s Traefik integration gives you label-based routing and programmatic wildcard certificates. CapRover’s nginx approach is more familiar to teams that already know nginx and want to drop in custom config files.

For standard use cases — one domain per app, automatic HTTPS — there is no practical difference. Traefik users will feel at home with Coolify; nginx devotees will prefer CapRover.

Multi-server / clustering

Coolify: Add remote servers via SSH credentials from the dashboard. Each server runs its own workloads; the single Coolify instance is a central control plane across all of them. An experimental Docker Swarm mode lets you designate a Swarm manager with workers for coordinated deploys. A separate “build server” option offloads CI workloads from your serving traffic.

CapRover: Docker Swarm was designed in from day one and is production-grade. Add worker nodes from the dashboard; load balancing is native via Swarm. The hard limitation: stateful apps with persistent volumes lock to a single node, so horizontal scaling only works cleanly for stateless services. An external container registry is required for multi-node image distribution.

If your model is “many separate VPS servers, each running different apps,” Coolify’s SSH multi-server management is simpler. If your model is “a single cluster of identical nodes handling variable stateless load,” CapRover’s Swarm integration is more mature than Coolify’s experimental equivalent.

Community & support

Coolify: 56,479 stars, ~474 contributors, active Discord, weekly releases. Feature velocity is the highest in this category — HN and X traction in 2023 brought in a large contributor wave.

CapRover: 15,053 stars, ~65 contributors, GitHub Issues and community forums. The 100M+ Docker Hub pull count reflects wide deployment in production environments, but the smaller contributor pool means fixes and features move slower.

CapRover’s slower pace is also its promise: the API and behavior you deploy with today is unlikely to break next month.

Pricing

Coolify

• Self-hosted: Free forever, all features.
• Coolify Cloud: $5/month (connects 2 servers) + $3/month per additional server. Managed Coolify instance, automated backups, founder-tested updates. You supply your own application servers.
• 20% discount on annual billing.

CapRover

• Core: Free, open-source.
• CapRover Pro: Paid, price not publicly disclosed (contact sales or visit pro.caprover.com). Adds: 2FA/OTP, build-status notifications, login alerts, 24-hour SLA email support.
• Note: enabling CapRover Pro 2FA breaks the standard caprover deploy command — switch to App Tokens for automated deploys.

Coolify’s pricing is transparent. If you want support without a sales call, the $5 Cloud tier answers that directly.

Hosting cost

Both tools run comfortably on a Hetzner CX22 — 2 vCPU, 4 GB RAM, 40 GB NVMe SSD at €4.15/month. Coolify idles at 500–700 MB RAM, CapRover at 300–400 MB. On a 4 GB server, both leave more than 3 GB for your own applications. The RAM gap matters only on 2 GB instances.

A DigitalOcean Droplet (2 GB) at ~$12/month is a viable alternative if you prefer DO’s region selection or are already on their platform.

Coolify vs CapRover decision table

Feature	Coolify v4.1.2	CapRover v1.14.2
Installation steps	3 (curl script)	7+ (Docker + DNS + npm CLI)
Dockerfile required	No (Nixpacks auto-detect)	Yes (or captain-definition)
Idle RAM	500–700 MB	300–400 MB
Minimum VPS RAM	2 GB	1 GB
Reverse proxy	Traefik v2	Nginx
SSL	Automatic (HTTP + DNS-01)	Automatic (HTTP challenge)
Docker Compose support	Full native	Limited (custom format)
Git push deploy	GitHub App (one-click)	Webhook + caprover deploy
One-click services	300+	348
Multi-server management	SSH-based per-server	Docker Swarm native
Database backups	Built-in S3 integration	Manual scripting
REST API	Full, 4 permission levels	Experimental (CLI-primary)
Team / auth	Multi-team, RBAC, 2FA built-in	Single-user (2FA is Pro-only)
CLI	None (API only)	caprover npm CLI
GitHub stars	56,479	15,053
Release cadence	Weekly	Monthly–quarterly
Self-hosted cost	Free	Free
Managed cloud option	$5/month	Undisclosed (Pro)

When to choose which

Choose Coolify if:

• You’re migrating from Heroku, Render, or Railway and want comparable UX on your own VPS.
• Your team includes developers who haven’t written Dockerfiles — Nixpacks auto-detection removes the container learning curve.
• You need scheduled database backups to S3 without third-party tooling.
• You’re managing multiple VPS servers and want a single control plane across all of them.
• You need a fully documented REST API for CI/CD pipeline integration.
• A Hetzner CX22 or similar 4 GB server is your target — Coolify fits comfortably.

Choose CapRover if:

• Your server is 1 GB RAM and every megabyte matters.
• Your team prefers CLI-first workflows: caprover deploy over a browser dashboard.
• Docker Swarm clustering for horizontal scaling of stateless services is your architecture.
• You want a stable, slowly-changing platform — monthly releases mean fewer surprises mid-sprint.
• You already know nginx well and want native access to per-app nginx configuration.
• Legacy compatibility matters: 100M+ Docker Hub pulls means wider community knowledge and more answered Stack Overflow questions.

Verdict

For most developers replacing a managed PaaS: Coolify is the right choice. It installs in eight minutes, builds most projects without a Dockerfile, handles multi-server from day one, and ships improvements weekly. Run it on a Hetzner CX22 and you’re spending €4.15/month on infrastructure for roughly the same developer experience as a $20/month managed platform.

CapRover is not the losing option — it is a different trade-off. 100M+ Docker Hub pulls don’t appear by accident; it runs production stacks everywhere. If RAM-constrained hardware, CLI-first workflows, or Docker Swarm clustering describes your situation, CapRover is the correct answer.

One thing neither tool handles well: volume backups for arbitrary application data. Coolify does database-level S3 backups cleanly. Both tools have experimental or manual solutions for backing up data written to disk outside a database. If your apps generate persistent files, layer a separate volume snapshot solution — this is not a solved problem for either tool.

If you’re still weighing self-hosting against managed PaaS, Fly vs Railway covers the two most popular low-cost hosted options.

References

• Coolify GitHub repository — star count, contributor count, release cadence
• Coolify releases — v4.1.2 release date (2026-06-04)
• Coolify templates — 300+ one-click services count
• CapRover GitHub repository — star count, contributor count
• CapRover releases — v1.14.2 release date (2026-05-14)
• CapRover Docker Hub — 100M+ pull count
• CapRover one-click apps — 348-app community library
• Nixpacks — zero-config build layer used by Coolify