1. vOneCloud 1.6: It is an OpenNebula distribution optimized to work on existing VMware vCenter deployments. It deploys an enterprise-ready OpenNebula cloud just in a few minutes where the infrastructure is managed by already familiar VMware tools, such as vSphere and vCenter Operations Manager
2. CloudStack: This Apache project offers a turnkey Infrastructure as a Service (IaaS) solution. It’s used both by public cloud computing vendors and by organizations running their own private clouds. Operating System: OS Independent
3. HP Helion Eucalyptus: Eucalyptus is a free and open-source computer software for building Amazon Web Services (AWS)-compatible private and hybrid cloud computing environments marketed by the company Eucalyptus Systems.
4. Synnefo: Synnefo is a complete cloud infrastructure stack built using Google Ganetti, OpenStack and KVM.
5. FOSS-Cloud: This multi-faceted cloud computing solution includes virutalization, cloud desktop, IaaS, PaaS and SaaS capabilities., it can save users up to 40 percent compared to closed source virtualization software.
6. eyeOS: It is a web desktop following the cloud computing concept that seeks to enable collaboration and communication among users. It is mainly written in PHP, XML, and JavaScript.7.
7. Puppet: Virtual servers are on the rise in cloud computing deployments, and Reductive Labs’ open-source software, built upon the legacy of the Cfengine system, is hugely respected by many system administrators for managing them.
8. Globus Nimbus: Nimbus Platform is an integrated set of tools that deliver the power and versatility of infrastructure clouds to scientific users. Nimbus Platform allows you to combine Nimbus, OpenStack, Amazon, and other clouds.
9. Traffic Server: Traffic Server is used to manage traffic, and it enables session management, authentication, configuration management, load balancing, and routing for entire cloud computing software stacks.
10: openqrm: It is a web-based open source datacenter management and hybrid cloud computing platform that integrates flexibly with existing components in enterprise data centers. openQRM abstracts Virtualization and supports the following virtualization technologies: KVM, XEN, Citrix XenServer, VMWare ESX, LXC, OpenVZ.
11. Seafile: Easy to setup cloud storage for home users, Seafile is a file hosting cloud storage software to store files. You can synchronized files and data with PC and mobile devices easily or use the server’s web interface for managing your data files.
12. SparkleShare: Easy to use cloud storage with git as a storage backend. It is like a Dropbox clone and very easy to setup. SparkleShare creates a special folder on your computer.
13. ownCloud: It is very popular file hosting cloud storage software and accessible via the mobile and desktop apps.
14. Syncthing: It is an open-source file synchronization client/server application, written in Go. It replaces proprietary sync and cloud services with something open, trustworthy and decentralized.
15. Pydio: Pydio used to be called AjaXplorer, it’s very much like ownCloud, but with nicer UI. It also have many plugins that runs on Node.js to allow you add additional features to preview or edit the data.