Coolify vs Dokku vs CapRover 2026: Self-Hosted PaaS Compared

Since Heroku killed its free tier, self-hosted PaaS solutions have exploded. Coolify, Dokku, and CapRover let you deploy apps like Heroku — but on your own servers. Here's how they compare in 2026.

Quick Verdict

Feature	Coolify	Dokku	CapRover
Best For	Modern self-hosted PaaS	Heroku-like CLI experience	Simple web UI deployments
Interface	Web UI	CLI	Web UI
Docker Support	✅	✅	✅
One-Click Apps	100+	Via plugins	200+
SSL	Auto (Let's Encrypt)	Auto (Let's Encrypt)	Auto (Let's Encrypt)
Git Push Deploy	✅	✅	✅
Pricing	Free (self-hosted)	Free	Free

What Is Coolify?

Coolify is a modern, open-source PaaS alternative to Heroku, Netlify, and Vercel — self-hosted. It features a beautiful web UI, supports Docker, Buildpacks, and static sites, and includes built-in database management, S3-compatible storage, and monitoring.

Key Features

• Beautiful UI: Modern dashboard for managing everything
• Multi-server: Deploy across multiple servers from one dashboard
• 100+ services: One-click deploy databases, apps, and services
• Auto-deploy: Push to Git, auto-deploys
• Backups: Automated database backups to S3
• Monitoring: Built-in resource monitoring
• Webhooks & API: Full API for automation

What Is Dokku?

Dokku is the smallest PaaS implementation you've ever seen. It's essentially "Docker-powered mini Heroku" — you push code with git push, it builds and deploys. It uses Heroku buildpacks, so most Heroku apps deploy without changes.

Key Features

• Heroku-compatible: Uses Heroku buildpacks
• Git push deploy: git push dokku main
• Plugin ecosystem: Databases, caching, SSL via plugins
• Process management: Procfile-based process management
• CLI-first: Everything via command line
• Lightweight: Runs on 1GB RAM servers

What Is CapRover?

CapRover is a self-hosted PaaS with a web-based dashboard. It emphasizes simplicity — deploy with a Dockerfile, one-click apps, or direct upload. It includes a cluster mode for scaling across multiple servers.

Key Features

• Web dashboard: Deploy and manage via browser
• 200+ one-click apps: WordPress, MongoDB, PostgreSQL, etc.
• Cluster mode: Scale across multiple Docker servers
• Custom domains: Add domains via UI with auto-SSL
• Dockerfile support: Any Dockerized app deploys easily
• CLI tool: caprover deploy from command line

Head-to-Head Comparison

Ease of Setup

CapRover: docker run caprover/caprover — running in 5 minutes. Coolify: curl install script — running in 10 minutes. Dokku: install script + plugin setup — 15-20 minutes.

User Interface

Coolify has the most modern, polished UI. CapRover's UI is functional but dated. Dokku has no UI — it's entirely CLI-based (though community dashboards exist).

App Support

All three support Docker. Dokku adds Heroku buildpacks, making it compatible with existing Heroku apps. Coolify supports Buildpacks, Docker, and static sites. CapRover focuses on Dockerfiles.

Multi-Server

Coolify handles multi-server deployments natively from its UI — add SSH keys for remote servers and deploy anywhere. CapRover supports clustering via Docker Swarm. Dokku is single-server by design.

Database Management

Coolify excels here — deploy PostgreSQL, MySQL, MongoDB, Redis with one click, plus automated backups to S3. Dokku uses plugins for databases (dokku-postgres, dokku-redis). CapRover includes one-click database deployments.

Resource Requirements

Dokku runs on the smallest servers — 1GB RAM is sufficient. CapRover needs 2GB+ for comfortable operation. Coolify needs 2-4GB for the dashboard plus your apps.

When to Choose Each

Choose Coolify When:

• You want a modern UI for managing deployments
• Multi-server deployment is needed
• You need built-in database management with backups
• You want the closest self-hosted Vercel/Heroku experience
• Your team prefers visual management over CLI

Choose Dokku When:

• You're migrating from Heroku (buildpack compatibility)
• You prefer CLI-first workflows
• Running on resource-constrained servers (1GB VPS)
• You want the simplest, most lightweight solution
• You're comfortable managing plugins manually

Choose CapRover When:

• You want the fastest setup time
• You need 200+ one-click apps
• Docker Swarm clustering for scaling
• Your team wants a web UI without Coolify's complexity
• Building internal tools that need quick deployment

Hosting Recommendations

All three run on any VPS. Popular choices:

• Hetzner: Best price/performance (€4-8/month)
• DigitalOcean: Easy setup ($6-12/month)
• Contabo: Cheapest raw resources
• Oracle Cloud: Free tier available

Frequently Asked Questions

Can Coolify replace Vercel?

For deployments, yes. You lose Vercel's edge network, analytics, and some DX features. But for deployment, auto-SSL, and previews, Coolify handles it well.

Is Dokku production-ready?

Yes. Dokku has been used in production for years. Many companies run their entire infrastructure on Dokku. It's simple and stable.

Can I use CapRover for high-traffic sites?

Yes, using cluster mode. Add worker nodes to scale horizontally. For very high traffic, you may want a dedicated load balancer in front.

Which is most actively developed?

Coolify — it has the most active development, regular releases, and a growing team. Dokku is stable with periodic updates. CapRover has slower development.

Can I migrate between them?

Since all three use Docker under the hood, migration is feasible. Package your app as a Docker container and it deploys to any of them.

Conclusion

Coolify is the best overall self-hosted PaaS in 2026 — modern UI, multi-server support, database management, and active development. Dokku is perfect for developers who want the simplest, lightest Heroku alternative with CLI workflows. CapRover is ideal for quick setups with its extensive one-click app library.

Our recommendation: Coolify for teams, Dokku for solo developers on small servers, CapRover for quick internal tool deployments.