Head-to-Head Comparison · Alternative to Virtuozzo · ☁️ hosting
Virtuozzo vs Cozystack
Transform bare metal servers into a complete cloud platform with REST API for Kubernetes clusters, databases, VMs, and load balancers. Build your own cloud. Here is how Cozystack ($0/mo open source) stacks up against Virtuozzo ($25/mo) across cost, hosting, data privacy, and real-world trade-offs.
Cozystack is a verified Open Source-licensed open-source replacement for Virtuozzo. Switching from Virtuozzo ($25/mo) saves $300/yr per solo seat, or $1,500/yr for a 5-person team. Deployment: Runs on Self-host.
The catch: Requires self-hosting setup, updates, and server maintenance compared to managed Virtuozzo.
Cozystack
$0.00/mo · Open Source
Virtuozzo vs Cozystack Specifications
facts verified 2026-11-07
| Dimension | Virtuozzo (Paid) | Cozystack (Replacement) |
|---|---|---|
| Monthly Price | $25 / mo | $0 / mo |
| 1-Year Cost (1 seat) | $300 / yr | $0 / yr (Save $300) |
| 1-Year Cost (5 seats) | $1,500 / yr | $0 / yr (Save $1,500) |
| 1-Year Cost (10 seats) | $3,000 / yr | $0 / yr (Save $3,000) |
| Source & License | Proprietary SaaS | open source Open Source |
| Where It Runs | Vendor Cloud | Self-host (your server) |
| Platforms | Web / Cloud | webself-hosteddocker to self-host |
| GitHub Stars | — | ★ 2.4k (active nov 2026) |
Deep Dive: Switching from Virtuozzo to Cozystack
Trade-offs, installation & data architecture
What you trade away
Requires self-hosting setup, updates, and server maintenance compared to managed Virtuozzo.
How to deploy Cozystack
Clone https://github.com/cozystack/cozystack or deploy with Docker Compose
What it takes to run
Deploy via Docker or binary release from GitHub and configure environment variables.
Where your data lives
All application data and configuration live on your own server or local database.
Why fork Cozystack instead of vibe-coding a Virtuozzo clone?
Instead of paying recurring SaaS fees for Virtuozzo or rebuilding it from scratch, deploy one of the 1 battle-tested open-source alternatives like Cozystack.
Virtuozzo vs Cozystack FAQ
Is Cozystack a good free alternative to Virtuozzo?+
Yes. Cozystack is a verified open-source (Open Source) replacement for Virtuozzo. Transform bare metal servers into a complete cloud platform with REST API for Kubernetes clusters, databases, VMs, and load balancers. Build your own cloud.
What is the catch when switching from Virtuozzo to Cozystack?+
Requires self-hosting setup, updates, and server maintenance compared to managed Virtuozzo.
How much do you save switching from Virtuozzo to Cozystack?+
Virtuozzo costs $25/mo ($300/yr) per seat, whereas Cozystack is $0/mo. Switching saves $300/yr for a solo user, $1,500/yr for a 5-person team, and $3,000/yr for a 10-person team.
How do I install or self-host Cozystack instead of Virtuozzo?+
Install: Clone https://github.com/cozystack/cozystack or deploy with Docker Compose. Setup: Deploy via Docker or binary release from GitHub and configure environment variables.
