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Virtualization software · head to head

Proxmox VE vs VMware vSphere

Sebastiaan Smits Editor Sebastiaan Smits · Published October 19, 2026 · Updated October 19, 2026

Proxmox VE is the cheaper and clearer buy for a small or mid-sized estate: the software is free, and its support prices are printed per socket. VMware vSphere is the better fit where the estate, the staff and the backup tooling already assume it, and where support bundled into the subscription matters more than the bill.

Side by side

Proxmox VEVMware vSphere
What it isOpen-source KVM and LXC virtualization with printed support pricesESXi and vCenter, now a Broadcom subscription
Best forSmall estates leaving per-core licensingLarger estates already standardized on VMware
HeadquartersAustriaUnited States
Pricing modelOpen source + paid tiersPer core / year
PricingSoftware is open source; optional support subscriptions per CPU socket per year: Basic 370 euros, Standard 550 euros, Premium 1,100 euros, net of VAT, one-year term.Per-core subscription with a minimum of 16 cores per processor, every core counted including those disabled in BIOS; no list price on the vendor pages we could fetch.
Free optionOpen sourceNone
List price
as listed on October 19, 2026		Free software (AGPLv3); optional support subscription per CPU socket per year: Basic 370 euros, Standard 550 euros, Premium 1,100 euros, net of VAT, one-year term (Proxmox VE pricing page)vSphere Standard is a per-core subscription with a 16-core minimum per processor; no list price appears on the Broadcom pages we fetched, so a quote is needed
Place in our virtualization software ranking#1 of 12#5 of 12
Websiteproxmox.comvmware.com

Both are reviewed in full in Best Virtualization Software in 2026. Position in that ranking can be paid for; the wording of a review or of this comparison cannot. Placement disclosure.

Which one to choose

Choose Proxmox VE if

you are leaving per-core licensing, want a price you can read off a page, and are happy to run a Linux-based platform with KVM and containers.

Proxmox VE, #1 in the ranking · Visit Proxmox VE →

Choose VMware vSphere if

your estate and staff are already built around ESXi and vCenter, and you would rather pay a subscription with support included than move hosts.

VMware vSphere, #5 in the ranking · Visit VMware vSphere →

Where they differ

What the price page says

Proxmox publishes three support subscriptions per CPU socket per year: Basic at 370 euros, Standard at 550 and Premium at 1,100, net of VAT, with a one-year term. The software itself is free under AGPLv3, and every plan carries every feature. For vSphere Standard, Broadcom's own terms describe a per-core subscription, but the vendor pages we fetched show no list price, so a buyer must ask for a quote before comparing anything.

Edge: Proxmox VE

What you are counted on

Proxmox support is priced per socket, so a many-core processor costs the same as a small one. Broadcom's vSphere documentation licenses per core with a floor of 16 cores per processor, and its worked example shows one host with a single 8-core CPU needing 16 core licenses. The Standard terms also say cores deactivated in the BIOS still count. Small servers are the ones that pay for hardware they do not have.

Edge: Proxmox VE

Hardware and the compatibility list

The vSphere terms tie use of the software to hardware that meets Broadcom's requirements and its Compatibility Guide, which gives a buyer a defined list to check against before ordering. Proxmox sells software only. Its requirements page recommends hardware RAID with a battery-backed cache or ZFS without RAID, and warns that ZFS and Ceph do not work with a hardware RAID controller. Checking a server against that is your own job.

Edge: VMware vSphere

Getting virtual machines across

Proxmox ships an ESXi import that connects to a host, tested against ESXi 6.5 to 8.0, plus OVA and OVF import and a live-import option. Its wiki lists limits: vSAN-backed disks and encrypted disks do not import, and importing through vCenter is slower. In the other direction, the vSphere terms say VMware Tools may not be used with any other hypervisor, so leaving means swapping guest drivers.

Edge: Proxmox VE

Clustering and failover

Both cover the basics. Proxmox clusters are multi-master, so any node manages the cluster with no dedicated manager, and it adds an HA manager, live migration and Ceph storage in the base product. Broadcom's vSphere documents cover vSphere HA, Fault Tolerance and DRS resource scheduling, and Standard includes vCenter Server. Neither page shows a gap that would decide a purchase for a small cluster, so this round is a draw.

Edge: even

Support that comes with the price

A vSphere subscription includes a support entitlement, and the terms we fetched mention no ticket cap. Proxmox support is tiered: Basic gives 3 tickets a year with a one-business-day response, Standard gives 10 with four hours, Premium is unlimited with two hours. Premium 24/7 coverage starts today, 19 October 2026, and Standard 24/7 is announced for the end of 2026. Running Proxmox with no subscription means community forums only.

Edge: VMware vSphere

Tally: Proxmox VE 3, VMware vSphere 2, even 1.

When neither fits

A shop that is mostly Windows Server and wants no extra licence line should price Microsoft Hyper-V, which the category file lists as included with Windows Server. A team that wants an open-source hypervisor with a French vendor and per-host support plans should look at XCP-ng.

See XCP-ng and Microsoft Hyper-V among the 12 products in Best Virtualization Software in 2026.

Questions and answers

Can Proxmox import VMs straight from VMware ESXi?

Yes. Proxmox VE has an ESXi import storage type that lists the VMs on a host and imports them, tested against ESXi 6.5 to 8.0. Disks on vSAN storage and encrypted disks do not import, and a VM with snapshots imports more slowly. OVA and OVF files can be imported as well.

Is Proxmox free for business use?

Yes, the software is free under the GNU AGPLv3 and all features are available without a subscription. The paid subscriptions add the stable Enterprise repository and support, from 370 euros per socket per year for Basic. Prices are net of VAT with a one-year term.

How does VMware count cores for a small server?

Every core is licensed, with a minimum of 16 cores per processor. Broadcom's documentation gives the case of one host with one 8-core CPU, which needs 16 core licenses. Cores switched off in the BIOS are still counted under the vSphere Standard terms.

Can I run VMware vSphere on a public cloud or host other companies?

Not under the vSphere Standard terms we read. They prohibit deploying the software on Cloud Services, and hosting for third parties is allowed only for deemed internal purpose applications. A service provider reselling capacity should read the terms before choosing it.

Sources

Prices, plan limits and product facts on this page were checked against the vendors' own pages on October 19, 2026. Vendors change both without notice, so treat the figures as of that date.