Proxmox VE
Open-source server virtualization: KVM virtual machines and LXC containers.
Open source Desktop download
- Platforms
- Linux (Debian), bare-metal; web UI (port 8006)
- Licence
- Open source — AGPLv3
- Price
- Free; support from ~€115/yr per CPU
- Category
- RMM, endpoints & virtualization
- Updated
- 2026-11-05
What it is
Proxmox VE is an open-source server virtualization platform combining KVM virtual machines and LXC containers. It supports clustering, software-defined storage and networking, high availability and backup through its web UI.
Problems it removes
- You want enterprise virtualization without per-core licensing.
- Both virtual machines and containers should run on the same host.
- You need an HA cluster on commodity hardware.
How administrators use it
- Install on Debian/bare-metal and manage KVM VMs and LXC containers from the web UI.
- Cluster nodes for high availability and live migration.
- Back up guests with the built-in tools or Proxmox Backup Server.
Strengths & trade-offs
Strengths
- Free and open source.
- KVM virtual machines and LXC containers in one platform.
- Clustering, HA, software-defined storage/networking and backup included.
Trade-offs
- You run and support it yourself, or buy a subscription.
- The stable enterprise repository needs a subscription.
Common questions
Is Proxmox VE really free?
Yes — a paid subscription adds the enterprise update repository and vendor support, but the platform is free.
VMs or containers?
Both — full KVM virtual machines and lightweight LXC containers.
Alternatives
VMware vSphere / ESXi
Enterprise virtualization on the ESXi hypervisor with vCenter management.
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