Proxmox VE
Open SourceOpen Source Server Virtualization Environment
VMware ESXi
CommercialEnterprise Virtualization Platform
Microsoft Hyper-V
CommercialWindows native virtualization platform
KVM
Open SourceKernel-based virtual machine
OpenStack
Open SourceOpen source cloud computing platform
License Type
Free & Open Source
Commercial License
With Windows Server
Open Source
Open Source
Virtualization Type
KVM + LXC
Native Virtualization
Native virtualization
Kernel-level virtualization
KVM/Xen/Other
Operating System
Linux
Cross-platform
Windows
Linux
Cross-platform
User Interface
Web Interface
vSphere Client
Hyper-V Manager
Command line/Third-party
Horizon
Storage Support
Ceph, NFS, iSCSI, etc.
VMFS, NFS, iSCSI, etc.
SMB, iSCSI, Fibre Channel
Flexible storage support
Cinder/Swift
Network Features
Linux Bridge, Open vSwitch
vSwitch, Distributed Switch
Virtual Switch
Standard Linux network
Neutron Network
High Availability
Built-in Cluster & HA
vSphere HA, DRS
Failover Clustering
Third-party support required
Component-level HA
Backup Features
Built-in Backup & Snapshot
vSphere Backup
Windows Backup
Third-party support required
Volume Backup
API Support
RESTful API
vSphere API
PowerShell
libvirt API
REST API
Technical Support
Active Community Support
Official Support
Microsoft Official Support
Community Support
Global Community Support
Proxmox VE
Open SourceOpen Source Server Virtualization Environment
License Type
Free & Open Source
Virtualization Type
KVM + LXC
Operating System
Linux
User Interface
Web Interface
Storage Support
Ceph, NFS, iSCSI, etc.
Network Features
Linux Bridge, Open vSwitch
High Availability
Built-in Cluster & HA
Backup Features
Built-in Backup & Snapshot
API Support
RESTful API
Technical Support
Active Community Support
VMware ESXi
CommercialEnterprise Virtualization Platform
License Type
Commercial License
Virtualization Type
Native Virtualization
Operating System
Cross-platform
User Interface
vSphere Client
Storage Support
VMFS, NFS, iSCSI, etc.
Network Features
vSwitch, Distributed Switch
High Availability
vSphere HA, DRS
Backup Features
vSphere Backup
API Support
vSphere API
Technical Support
Official Support
Microsoft Hyper-V
CommercialWindows native virtualization platform
License Type
With Windows Server
Virtualization Type
Native virtualization
Operating System
Windows
User Interface
Hyper-V Manager
Storage Support
SMB, iSCSI, Fibre Channel
Network Features
Virtual Switch
High Availability
Failover Clustering
Backup Features
Windows Backup
API Support
PowerShell
Technical Support
Microsoft Official Support
KVM
Open SourceKernel-based virtual machine
License Type
Open Source
Virtualization Type
Kernel-level virtualization
Operating System
Linux
User Interface
Command line/Third-party
Storage Support
Flexible storage support
Network Features
Standard Linux network
High Availability
Third-party support required
Backup Features
Third-party support required
API Support
libvirt API
Technical Support
Community Support
OpenStack
Open SourceOpen source cloud computing platform
License Type
Open Source
Virtualization Type
KVM/Xen/Other
Operating System
Cross-platform
User Interface
Horizon
Storage Support
Cinder/Swift
Network Features
Neutron Network
High Availability
Component-level HA
Backup Features
Volume Backup
API Support
REST API
Technical Support
Global Community Support