OpenStack is a free and open-source software platform for cloud computing, mostly deployed as an infrastructure-as-a-service (IaaS). hot
Red Hat CloudForms is an open hybrid Infrastructure-as-a-Service (IaaS) cloud-management product. It delivers the flexibility and agility that businesses want with the control and governance that IT needs. It is a feature-rich product providing discovery, policy-management, web-service integration, and automation capabilities for hybrid cloud environments. It relies on over 60 open source projects.
CloudStack is a complete package for managing cloud computing and virtual infrastructure. It enables users to easily build, manage, and deploy private and public clouds.
Elastic Utility Computing Architecture for Linking Your Programs to Useful Systems (Eucalyptus) is open source computer software for building Amazon Web Services (AWS)-compatible private and hybrid cloud computing environments.
Nimbus is an open-source toolkit that, once installed on a cluster, provides an infrastructure as a service cloud to its client via WSRF-based or Amazon EC2 WSDL web service APIs. The mission of the software is to evolve the infrastructure with emphasis on the needs of science, but many non-scientific use cases are supported as well.
OpenNebula is a toolkit to easily build any type of cloud: private, public, and hybrid. OpenNebula has been designed to be integrated with any networking and storage solution and so to fit into any existing data center.
openQRM is a systems management platform that integrates with existing components in enterprise data centers to create scalable, highly available, and customizable infrastructures. Read more
oVirt is a small host image that provides libvirt service and hosts virtual machines (oVirt Node) and a Web-based virtual machine management console (oVirt Server Suite). It is built using existing open source components (libvirt, kvm, collectd, Ruby on Rails, PostgreSQL, and freeIPA).