Coolify vs Dokku vs CapRover: Best Self-Hosted PaaS (2026)
You want the simplicity of Heroku without the cost or vendor lock-in. Self-hosted PaaS platforms give you push-to-deploy on your own servers. In 2026, Coolify, Dokku, and CapRover are the three main options.
Quick Comparison
| Feature | Coolify | Dokku | CapRover |
|---|---|---|---|
| UI | Web dashboard (excellent) | CLI only | Web dashboard |
| Architecture | Docker + Docker Compose | Docker (Heroku buildpacks) | Docker |
| Multi-server | Yes | Single server | Yes (with captain-definition) |
| Databases | One-click deploy | Plugins | One-click deploy |
| SSL | Automatic (Let's Encrypt) | Plugin (Let's Encrypt) | Automatic (Let's Encrypt) |
| Git deploy | GitHub/GitLab/Bitbucket | git push | GitHub/tar upload |
| Docker Compose | Native support | Limited | No |
| Resource monitoring | Built-in | No | Basic |
| Backups | Built-in | Plugin | No built-in |
| License | Apache 2.0 | MIT | Apache 2.0 |
| Install | One-liner script | One-liner script | One-liner script |
Coolify: The Modern Choice
Coolify is the newest of the three and the most feature-rich. It's essentially a self-hosted Vercel/Heroku with a beautiful web interface.
Strengths
Web UI. Coolify has the best dashboard of any self-hosted PaaS. Deploy apps, manage databases, view logs, monitor resources — all from a clean web interface.
Docker Compose support. Deploy complex multi-container stacks (app + database + cache + worker) from a single docker-compose.yml. Neither Dokku nor CapRover handle this as cleanly.
One-click services. Deploy PostgreSQL, MySQL, Redis, MongoDB, MinIO, and 40+ other services with one click. Each gets automatic backups and monitoring.
Multi-server. Connect multiple servers and deploy across them from one dashboard. Manage your entire fleet from a single Coolify instance.
Built-in backups. Automatic database backups to S3-compatible storage. Scheduled, encrypted, and restorable from the UI.
Preview deployments. Pull request preview environments, similar to Vercel's preview deployments.
Weaknesses
- Younger project — fewer production deployments than Dokku
- Higher resource usage (the Coolify dashboard itself needs ~1GB RAM)
- Occasional rough edges in complex configurations
- Community smaller than Dokku's
Best For
Anyone who wants a self-hosted Vercel/Heroku experience with a web UI. Best for teams, multi-server setups, and Docker Compose workloads.
Dokku: The Veteran
Dokku has been the default self-hosted PaaS since 2013. It's a mini-Heroku powered by Docker and Heroku buildpacks.
Strengths
Battle-tested. 10+ years of production use. Extremely stable and well-understood.
Heroku compatibility. Uses Heroku buildpacks, so most Heroku apps deploy with zero changes. Same Procfile, same buildpack system.
Minimal resource usage. Dokku itself uses almost no resources. On a $5/month VPS, nearly all resources go to your apps.
Plugin ecosystem. PostgreSQL, MySQL, Redis, Let's Encrypt, HTTP auth, cron — 100+ community plugins extend functionality.
Simple mental model. git push dokku main and your app deploys. Familiar to anyone who's used Heroku.
Weaknesses
- CLI only. No web dashboard. Everything via SSH commands.
- Single server only. No multi-server management.
- No Docker Compose. Each app is a single container. Multi-container setups require separate apps + networking.
- No built-in monitoring. Add your own (Grafana, Netdata, etc.).
- Limited CI/CD. Git push deploys work, but complex pipelines need external CI.
Best For
Solo developers comfortable with the CLI who want the simplest, most lightweight, battle-tested deployment solution. Perfect for $5-10/month VPS deployments.
CapRover: The Middle Ground
CapRover offers a web dashboard with one-click apps, sitting between Dokku's simplicity and Coolify's feature set.
Strengths
One-click apps. 100+ one-click app templates: WordPress, Ghost, Plausible, Mattermost, and more. Deploy complex apps without configuration.
Web dashboard. Manage apps, view logs, and configure deployments from a browser.
Captain Definition. CapRover's deployment specification that supports multi-step builds, custom Dockerfiles, and build arguments.
Cluster mode. Add worker nodes for horizontal scaling across multiple servers.
Weaknesses
- UI feels dated. Dashboard works but looks like 2018-era Bootstrap.
- No Docker Compose. One container per app (similar to Dokku).
- Development has slowed. Fewer updates in 2025-2026 compared to Coolify.
- Documentation gaps. Some advanced features poorly documented.
- No built-in backups. Database backups are manual.
Best For
Users who want a web UI but don't need Coolify's full feature set. Good for one-click app deployments.
Head-to-Head Scenarios
Deploying a Next.js App
Coolify: Connect GitHub repo → auto-detect Next.js → deploy. Preview deployments for PRs. Built-in SSL.
Dokku: git push dokku main → Heroku buildpack detects Node.js → deploys. Add Let's Encrypt plugin for SSL.
CapRover: Connect repo or upload tar → configure captain-definition → deploy. SSL via Let's Encrypt.
Winner: Coolify for the smoothest experience. Dokku for the simplest.
Deploying a Full Stack (App + DB + Redis + Worker)
Coolify: Single docker-compose.yml deploys everything. Internal networking handled automatically.
Dokku: Deploy each as separate apps. Create database via plugin. Link services. More manual but works.
CapRover: Deploy each as separate one-click apps. Connect via internal networking. Manual but doable.
Winner: Coolify, decisively. Docker Compose support is a game-changer for multi-service stacks.
Running on a $5/month VPS (1GB RAM)
Coolify: Tight. Coolify itself needs ~1GB. You'd need at least a $10-12/month VPS (2GB+).
Dokku: Perfect. Uses <100MB. Nearly all resources available for your apps.
CapRover: Manageable. Uses ~300-500MB. Works on 1GB but tight.
Winner: Dokku for minimal servers.
Resource Requirements
| Platform | Min RAM | Min Disk | Overhead |
|---|---|---|---|
| Coolify | 2GB | 30GB | ~1GB RAM |
| Dokku | 512MB | 10GB | <100MB RAM |
| CapRover | 1GB | 20GB | ~300MB RAM |
Pricing
All three are free and open-source. Your only cost is the server.
Recommended VPS providers:
- Hetzner: €4.50/month for 2GB RAM (best value)
- DigitalOcean: $6/month for 1GB RAM
- Vultr: $6/month for 1GB RAM
- Linode: $5/month for 1GB RAM
Coolify Cloud offers a managed version starting at $5/month if you don't want to self-host the Coolify instance itself.
Migration from Heroku
| Feature | Heroku → Coolify | Heroku → Dokku | Heroku → CapRover |
|---|---|---|---|
| Procfile | Supported | Native | Supported |
| Buildpacks | Docker-based | Heroku buildpacks | Docker-based |
| Add-ons | Manual equivalent | Plugin equivalent | One-click apps |
| Env vars | Dashboard UI | CLI | Dashboard UI |
| Effort | Low | Lowest | Low |
Dokku is the easiest Heroku migration path since it uses the same buildpack system.
FAQ
Which is most reliable for production?
Dokku has the longest track record. Coolify is rapidly catching up with more active development. Both are production-ready for small-to-medium workloads.
Can any of these replace Vercel?
Coolify comes closest with preview deployments and GitHub integration. However, none match Vercel's edge network, serverless functions, or framework-specific optimizations. For pure app hosting, yes. For edge computing, no.
Do I need Docker knowledge?
Dokku: Minimal. Heroku buildpacks handle most cases. CapRover: Basic Docker knowledge helps. Coolify: Docker Compose knowledge is a plus but not required for simple apps.
What about backups?
Coolify: Built-in automatic backups to S3. Best solution.
Dokku: Manual via plugins or scripts. dokku postgres:export works.
CapRover: Fully manual. Script your own backup solution.
Can I run multiple apps on one server?
Yes, all three support multiple apps on a single server. This is the primary advantage over traditional VPS management — run 5-10 small apps on one $10/month server.
The Verdict
- Coolify for the best overall experience in 2026. Web UI, Docker Compose, multi-server, backups — the most complete self-hosted PaaS.
- Dokku for maximum simplicity and minimal resources. The battle-tested choice for solo devs on budget servers.
- CapRover for one-click app deployments and a simpler dashboard. Good middle ground, but Coolify has surpassed it in most areas.
Default recommendation: Start with Coolify unless you're on a very tight budget (then Dokku). Coolify's development pace and feature set make it the clear leader for self-hosted PaaS in 2026.