VMware alternatives
Proxmox, XCP-ng, Nutanix, Hyper-V, HPE VM Essentials, OpenShift Virtualization and OpenStack compared, with how each is licensed and who it suits.
Updated
The short answer
There is no single best replacement for VMware. The right choice depends on what you are actually replacing and who will run it afterwards:
- Just the hypervisor, on servers you already own: Proxmox VE or XCP-ng.
- A mostly Windows estate: Hyper-V, since you may already hold the licences.
- One vendor for compute and storage: Nutanix.
- A familiar enterprise vendor with per-socket pricing: HPE VM Essentials.
- VMs next to containers on one platform: OpenShift Virtualization.
- A large multi-tenant cloud, with a team to run it: OpenStack.
- A self-service cloud without running the control plane: CloudOps.
The options side by side
| Built on | How it is licensed | |
|---|---|---|
| Proxmox VE | KVM and LXC, on Debian | Open source (AGPLv3); optional support from €120 to €1,100 per CPU socket a year, before VAT, in November 2026 |
| XCP-ng | The Xen hypervisor, managed with Xen Orchestra | Free and open source with all features included; Vates sells support per host per year |
| Nutanix AHV | KVM, as part of Nutanix Cloud Infrastructure | Not sold on its own; included with a Nutanix Cloud Infrastructure licence |
| Microsoft Hyper-V | Windows Server | Per core, with at least 16 per server; Datacenter covers unlimited Windows VMs and Standard covers two; client access licences are extra |
| HPE VM Essentials | HPE's KVM-based hypervisor, and it can also manage vSphere | Per CPU socket, with a suggested US list price of $600 per socket a year |
| OpenShift Virtualization | KubeVirt on Kubernetes | Part of a Red Hat OpenShift subscription |
| OpenStack | A set of cloud services, usually on KVM | Open source (Apache 2.0); the cost is staff or a vendor distribution |
| CloudOps | KVM on your servers, with a control plane we run | Per physical server, with VMs not counted |
What to check before you choose
- Who will run it. A product that fits your team's skills usually beats a stronger one nobody can operate.
- Vendor certification. Some software is only supported on specific hypervisors, so ask those vendors first.
- Backup. Confirm that your backup product supports the new platform, or budget for a replacement.
- Hardware. Check your exact servers and storage against each product's compatibility list.
- Lock-in. Moving from one proprietary platform to another can repeat the problem that made you leave.
- The whole bill. Add support, Windows guest licences, new tooling and the migration work itself.
How the move itself works
Migration tooling differs a lot between products, so test it early with a real workload. Proxmox VE has an import wizard for ESXi guests, tested with ESXi 6.5 through 8.0. Nutanix offers its free Move tool for ESXi sources. Whichever you choose, start with something unimportant, measure the downtime, and plan for VirtIO drivers on Windows guests when moving to a KVM-based platform.
If Proxmox is on your shortlist, see our VMware vs Proxmox comparison.
Where CloudOps fits
CloudOps is the option for teams that want more than a hypervisor. It gives servers you own self-service VMs, Kubernetes, private networks, load balancers and S3-compatible storage, from a console, an API and Terraform, and we run the control plane as a service.
It is not a drop-in replacement for vSphere. CloudOps has no live migration between hosts and no automatic VM restart on another host, you cannot install the control plane yourself, and direct ESXi import is coming soon, so for now workloads are rebuilt from images or with Terraform. If you rely on those, look at the other products above.
More detail: CloudOps as a VMware alternative.