Self-Host Coolify: Open Source Vercel Alternative 2026

TL;DR

Coolify is the leading self-hosted PaaS — an open-source alternative to Vercel, Heroku, and Netlify with 50,000+ GitHub stars. It gives you push-to-deploy workflows, automatic HTTPS, 280+ one-click service templates, database management, and preview deployments on servers you own. The one-line installer gets you running in under 5 minutes. At scale, self-hosting Coolify on a $6/month VPS is 85–95% cheaper than equivalent Vercel Pro/Enterprise bills.

Key Takeaways

Coolify v4: ~50K GitHub stars, Apache 2.0 license, actively maintained by coolabs.io
One-line install: curl -fsSL https://cdn.coollabs.io/coolify/install.sh | bash
280+ one-click templates: databases, monitoring stacks, CMS platforms, AI tools
Multi-server support: manage deployments across multiple VPS instances from one dashboard
Git integration: GitHub, GitLab, Bitbucket — push to deploy with automatic SSL
Nixpacks support: auto-detects your framework and builds without a Dockerfile
Vercel comparison: a $5/month Hetzner VPS running Coolify handles what would cost $50–200/month on Vercel at production scale
Requirements: 2GB RAM, 1 vCPU minimum (2GB RAM, 2 vCPU recommended)

Why Switch From Vercel to Coolify?

Vercel is excellent for getting started. It's less excellent when your bill arrives.

Vercel pricing reality (2026):
  Hobby: Free (personal projects only)
  Pro: $20/month + usage

  Usage charges on Pro:
    Bandwidth: $0.15/GB over 1TB
    Edge Function executions: $2/million over 500K
    Function GB-hours: $18/GB-hr over 1,000
    Image optimization: $5/1000 images over 5,000

Real Pro bills at moderate scale:
  10-person startup with active traffic: $80-300/month
  Mid-size app (50K MAU): $200-600/month

Coolify equivalent:
  Hetzner CX22 (2 vCPU, 4GB RAM): €3.79/month (~$4/month)
  Hetzner CX32 (4 vCPU, 8GB RAM): €7.49/month (~$8/month)
  Hetzner CCX23 (4 dedicated vCPU, 8GB): €15.59/month (~$17/month)

The math only works if you're comfortable managing a Linux server. Coolify abstracts most of that — but it's still infrastructure you're responsible for.

What Coolify Includes

Feature	Coolify	Vercel	Netlify
Push-to-deploy	✅	✅	✅
Auto SSL (Let's Encrypt)	✅	✅	✅
Preview deployments	✅	✅	✅
Database management	✅	❌	❌
One-click services	✅ 280+	❌	❌
Multi-server	✅	❌	❌
Docker Compose deploy	✅	❌	❌
Nixpacks	✅	✅	❌
GitHub Actions	✅	✅	✅
Edge functions	❌	✅	✅
Global CDN	❌ (need Cloudflare)	✅	✅
Analytics	Basic	✅	✅
Cost	VPS only	$20+/mo	$19+/mo

The major Coolify gaps: no global CDN (add Cloudflare free tier) and no edge functions (use Workers or Deno Deploy for that use case). Everything else is covered.

Installation

One-Line Install (Recommended)

# Run on a fresh Ubuntu 22.04 / Debian 12 server
# Requires root or sudo
curl -fsSL https://cdn.coollabs.io/coolify/install.sh | bash

The script installs Docker, configures the network, and deploys Coolify as a set of containers. Takes 2–3 minutes.

Access the dashboard at http://your-server-ip:8000.

Manual Docker Compose Install

For more control over the deployment:

# Download the official Coolify compose files
mkdir -p /data/coolify/source
curl -fsSL https://cdn.coollabs.io/coolify/docker-compose.yml -o /data/coolify/source/docker-compose.yml
curl -fsSL https://cdn.coollabs.io/coolify/docker-compose.prod.yml -o /data/coolify/source/docker-compose.prod.yml
curl -fsSL https://cdn.coollabs.io/coolify/.env.production -o /data/coolify/source/.env

# Generate required secrets
sed -i "s|APP_ID=.*|APP_ID=$(openssl rand -hex 16)|g" /data/coolify/source/.env
sed -i "s|APP_KEY=.*|APP_KEY=base64:$(openssl rand -base64 32)|g" /data/coolify/source/.env
sed -i "s|DB_PASSWORD=.*|DB_PASSWORD=$(openssl rand -base64 24)|g" /data/coolify/source/.env
sed -i "s|REDIS_PASSWORD=.*|REDIS_PASSWORD=$(openssl rand -base64 24)|g" /data/coolify/source/.env

# Start Coolify
docker compose -f /data/coolify/source/docker-compose.yml \
               -f /data/coolify/source/docker-compose.prod.yml \
               --env-file /data/coolify/source/.env \
               -p coolify up -d --pull always --remove-orphans

Server Requirements

# Verify your server meets minimum requirements
free -h      # Need at least 2GB RAM
nproc        # Need at least 1 vCPU (2+ recommended)
df -h /      # Need at least 30GB disk

# Open required ports (if using UFW)
ufw allow 22    # SSH
ufw allow 80    # HTTP
ufw allow 443   # HTTPS
ufw allow 8000  # Coolify dashboard (close after setting up domain)
ufw enable

Deploying Your First App

Connect a Git Repository

Open dashboard → Sources → Add → select GitHub/GitLab/Bitbucket
Install the Coolify GitHub App on your account/org
Go to Projects → New Project → New Resource → Application
Select your repository and branch

Coolify auto-detects your stack with Nixpacks:

Detected: Next.js 15 application
Build command: npm run build
Start command: npm run start
Port: 3000
Build pack: Nixpacks ✅

Environment Variables

# Set via dashboard UI, or via API:
curl -X POST "https://your-coolify.domain/api/v1/applications/{uuid}/envs" \
  -H "Authorization: Bearer YOUR_API_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "key": "DATABASE_URL",
    "value": "postgresql://user:pass@localhost:5432/mydb",
    "is_secret": true
  }'

Deploy a Database (One-Click)

Dashboard → New Resource → Database → PostgreSQL 16

Coolify provisions:
  - PostgreSQL container with persistent volume
  - Automatic backups to S3 (if configured)
  - Internal hostname: postgresql.coolify.internal
  - Generated credentials visible in dashboard
  - pgAdmin UI option

One-Click Service Templates

Coolify's 280+ templates cover common self-hosted services:

AI/LLM:
  - Ollama          - Local LLM inference
  - Open WebUI      - ChatGPT-like UI for Ollama
  - Flowise         - LangChain visual builder
  - n8n             - AI workflow automation

Databases:
  - PostgreSQL, MySQL, MariaDB, MongoDB
  - Redis, KeyDB, DragonFly
  - ClickHouse, CockroachDB

CMS:
  - Ghost, WordPress, Strapi, Directus, Payload

Monitoring:
  - Grafana + Prometheus stack
  - Uptime Kuma
  - Plausible Analytics

Dev Tools:
  - Gitea (GitHub alternative)
  - Drone CI / Woodpecker CI
  - Minio (S3 storage)
  - Vaultwarden (Bitwarden server)

Setting Up a Custom Domain + HTTPS

Coolify handles Let's Encrypt certificates automatically:

1. Point your domain DNS to your server IP:
   Type: A
   Name: app.yourdomain.com
   Value: YOUR_SERVER_IP

2. In Coolify dashboard → Application → Domains:
   Add: app.yourdomain.com

3. Toggle "Enable HTTPS" → Coolify requests Let's Encrypt cert

4. Done — your app is live at https://app.yourdomain.com

For wildcard certificates (multiple subdomains):

# Coolify supports Let's Encrypt wildcard via DNS challenge
# Configure in: Settings → SSL → Wildcard Certificate
# Requires DNS provider API (Cloudflare, etc.)

Adding a CDN with Cloudflare (Free)

Coolify doesn't include a CDN, but Cloudflare's free tier covers it:

1. Add your domain to Cloudflare (free plan)
2. Update nameservers at your registrar to Cloudflare
3. In Cloudflare DNS: point your subdomain to your server IP
4. Enable Cloudflare proxy (orange cloud icon)
5. Cloudflare now caches static assets globally

Result:
  - Global CDN caching for static assets
  - DDoS protection
  - Cloudflare Analytics
  - Cost: $0

Multi-Server Setup

Coolify's multi-server feature lets you deploy services to remote servers from a single dashboard:

Architecture:
  Coolify Server (your management node)
    ├── Server 1 (apps)   — connected via SSH key
    ├── Server 2 (databases) — connected via SSH key
    └── Server 3 (staging) — connected via SSH key

Setup:
  1. Settings → Servers → Add Server
  2. Enter IP, SSH port, and paste your private key
  3. Coolify tests the connection and validates Docker is present
  4. Deploy resources to any connected server from the same dashboard

Migrating from Vercel

# 1. Export your environment variables from Vercel
#    Vercel Dashboard → Project → Settings → Environment Variables → Download

# 2. Identify your build/start commands from vercel.json or package.json

# 3. In Coolify: create new application from your repo
#    - Set same environment variables
#    - Set same build/start commands

# 4. Add your custom domain to Coolify
#    - Update DNS to point to Coolify server

# 5. Verify deployment, then remove from Vercel

The main migration consideration: if your app uses Vercel Edge Functions, Vercel KV, Vercel Blob, or Vercel Postgres — those are Vercel-specific services you'll need to replace with self-hosted or third-party equivalents (Upstash, Cloudflare KV, MinIO, PostgreSQL).

Full comparison of self-hosted PaaS options at OSSAlt.

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