Best Open Source Hosting and PaaS Platforms in 2026

Vercel Pro costs $20/user/month. Heroku starts at $5/dyno. Here are the best open source PaaS platforms for deploying your own apps.

Quick Comparison

Tool	Best For	License	Stars	UI
Coolify	Best overall	Apache-2.0	35K+	Web
Dokku	Heroku replacement	MIT	29K+	CLI
CapRover	Docker apps	Apache-2.0	13K+	Web
Kubero	Kubernetes PaaS	GPL-3.0	2.5K+	Web

Key Differences

Coolify — Best Overall

• Beautiful web UI
• Git-based deployments
• 100+ one-click services
• Multi-server management
• Preview deployments
• Automatic SSL
• Nixpacks (auto-detect frameworks)
• Database provisioning

Dokku — Best CLI-First

• Heroku-compatible
• Git push to deploy
• Buildpack support
• Plugin ecosystem
• Single-server
• Tiny footprint
• dokku CLI mirrors heroku CLI

CapRover — Best Docker-Based

• Web dashboard
• One-click apps
• Custom Dockerfiles
• Automated SSL
• Cluster mode
• Webhooks
• Built on Docker Swarm

Choosing the Right Tool

Need	Choose
Best UI, most features	Coolify
Heroku muscle memory	Dokku
Docker-focused	CapRover
Kubernetes-based	Kubero

Cost Savings

Service	SaaS Cost (5 users)	Self-Hosted	Annual Savings
Vercel Pro	$1,200/year	$96/year (Coolify on Hetzner)	$1,104
Heroku (5 dynos)	$1,500/year	$54/year (Dokku on Hetzner)	$1,446

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Compare all hosting platforms on OSSAlt — features, deployment methods, and pricing side by side.