Best Free and Open Source IaaS Software

Infrastructure as a Service (IaaS) is a service model where an organization outsources the equipment used to support storage, hardware, servers and networking components. In other words, IaaS offers access to computer resource in a virtualised environment, known as the Cloud, across a public connection. With IaaS individuals can rent cloud infrastructure, server storage and networking on demand.

IaaS is one of the fundamental service models of cloud computing. The other service models include Platform as a Service (PaaS) and Software as a Service (SaaS). We examined the finest open source PaaS software in the following article: PaaS Software.

A typical IaaS offers scalability which is particulary useful for workloads that are highly volatile. IaaS also offers utility style costing, location independence, no single point of failure, and physical security of data centre locations. The advantages are so great, IaaS is the fastest growing area of cloud computing.

With commercial cloud systems, there is no investment in hardware required. This enables start-up businesses to easily test out a new business idea. Whilst commercial cloud services are popular, they charge for CPU usage by the hour, storage, and bandwidth consumed. In a large organization, where many users need to be served, it may be cheaper to purchase hardware to create a private cloud. This article showcases the finest open source projects that provide a key alternative for those who wish to avoid using a commercially provided cloud.

Here’s our verdict captured in a legendary LinuxLinks-style ratings chart. Only free and open source software is eligible for inclusion here.

Ratings chart for best free and open source IaaS software

Click the links in the table below to learn more about each application.

Infrastructure as a Service (IaaS) Software
OpenStackDelivers a massively scalable cloud operating system
CloudStackTurnkey solution that includes the entire "stack" of features
OpenNebulaCloud computing toolkit
oVirtVirtualization platform with an easy-to-use web interface
OpenQRMAutomated, rapid-deployment, storage-manage, virtualization and cloud
n8nWorkflow automation tool

This article has been revamped in line with our recent announcement.

Best Free and Open Source SoftwareRead our complete collection of recommended free and open source software. Our curated compilation covers all categories of software.

The software collection forms part of our series of informative articles for Linux enthusiasts. There are hundreds of in-depth reviews, open source alternatives to proprietary software from large corporations like Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk.

There are also fun things to try, hardware, free programming books and tutorials, and much more.
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