Proxmox Virtual Environment

Proxmox Virtual Environment is an easy to use Open Source virtualization platform for running Virtual Appliances and Virtual Machines.

Freemium

OpenStack

OpenStack OpenStack is a global collaboration of developers and cloud computing technologists producing the ubiquitous open source cloud computing platform for public and private clouds.

Free Open Source Web

CloudStack

Apache's CloudStack is a Project backed by Citrix and designed to be a direct competitor to OpenStack.

Free Open Source Linux Web

ZeroStack

ZeroStack’s delivers a public cloud experience with private cloud control through software that automates cloud infrastructure, applications, and operations.

Commercial Web