CloudStack vs OpenNebula comparison

Read 15 OpenNebula reviews

2,867 Views
2,752 Comparison Views

100% willing to recommend

CloudStack

Comparison Buyer's Guide

Download the report

Executive SummaryUpdated on Dec 17, 2024

CloudStack and OpenNebula are competing in the cloud infrastructure domain. OpenNebula has the upper hand due to its adaptability and ease of deployment across varied infrastructures.

Features: CloudStack offers comprehensive support for hybrid and multi-cloud environments, advanced networking, and security features, and a centralized management system for scalability. OpenNebula has a lightweight footprint, provides a user-friendly interface, and supports flexibility across both private and public cloud platforms.

Room for Improvement: CloudStack can improve by streamlining its resource-intensive deployment process, simplifying the customization process, and enhancing its support for newer virtualization technologies. OpenNebula could benefit from expanding advanced networking capabilities, increasing support for multi-cloud environments, and improving its integration with additional enterprise applications.

Ease of Deployment and Customer Service: OpenNebula is known for its straightforward deployment and strong customer support, making it easy to manage various cloud infrastructures. CloudStack's deployment may require more resources, but it provides extensive documentation and community support for users.

Pricing and ROI: CloudStack is an open-source solution, potentially involving higher initial expenses due to substantial customization and resource needs. OpenNebula, also open-source, presents lower setup costs and an attractive return on investment for small to medium-sized enterprises.

To learn more, read our detailed CloudStack vs. OpenNebula Report (Updated: December 2025).

CloudStack vs. OpenNebula

Download the complete report

Helped 879,371 peers since 2012

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Categories and Ranking

CloudStack

Ranking in Cloud Management

7th

Average Rating

8.0

Reviews Sentiment

6.5

Number of Reviews

Ranking in other categories

No ranking in other categories

OpenNebula

Ranking in Cloud Management

8th

Average Rating

8.2

Reviews Sentiment

7.0

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of January 2026, in the Cloud Management category, the mindshare of CloudStack is 2.8%, down from 6.7% compared to the previous year. The mindshare of OpenNebula is 3.7%, down from 8.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Cloud Management Market Share Distribution
Product	Market Share (%)
CloudStack	2.8%
OpenNebula	3.7%
Other	93.5%

Cloud Management

Featured Reviews

Tharun Kumar Reddy Thamatam

Senior Infrastructure Consultant at Infosys

Achieving seamless infrastructure management with optimized network and user access controls

I believe enhancements could be made in CloudStack, particularly in the management servers. I had the opportunity to collaborate with one of the Apache CloudStack developers, leading to the installation of additional agents for better information retrieval from hypervisors. We implemented configurations, ensuring consistency across hosts and VMs. We also utilized Ansible or YAML files to automate password upgrades during patching activities and database management, showcasing our customization efforts for improvement. For future releases, it would be beneficial if Apache enhanced CloudStack by integrating alerting systems directly. We've had instances where hypervisors experienced overloads without prior alerts, so proactive alerts within the tool would better prepare us for addressing issues swiftly, preventing disruption in business operations. A portal summarizing system metrics alongside alert capabilities would greatly enhance our operational efficiency.

Read full review

Thomas Bennett

Manager, DevOps System Engineering team at MX

Robust with great CLI tools and UI

I've found OpenNebula upgrades to be more complex than those of some of the competitors and the support to be mediocre. I would also like to see more and better ancillary tools related to OpenNebula, for example, more robust tools for backups, user support, etc. The support knows their software stack reasonably well. However, OpenNebula depends on so many open-source projects that they lack expertise. As with all enterprise software licensing, the pricing is not intuitive and must be negotiated; grandfathered contracts are better than anything offered today.

Read full review

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Pros

"My company could implement a lot of customizations and integration with load balancers and DNS. When we started using CloudStack, we didn't have that integration, so we developed that. We could fix anything missing in the solution."

"The APIs for automation in CloudStack are excellent; everything is API-driven, and while the API is very rich and hard to learn, you can do everything you would want to do, including everything in the user interface and more."

"The back-end database design is simple and straight forward. The user interface is designed with external users in mind. Billing is relatively straightforward with this product. Not being restricted to just one hypervisor was nice."

"Killer features for me were: support for many hypervisors, ability to match business logic, "everything in one box," available APIs."

"The structuring of the components and isolated environments helped us when using parts of the framework at different levels of product development."

"It gives us the ability to manage and segregate a guest network with openvSwitch and VLAN IDs."

"It works, and pretty much always has. Reliability and support for enterprise features, with a multi-tenant interface, makes CloudStack a very compelling solution."

"It is very easy to install and manage. It has the all modules in one node, unlike other software (OpenStack). The product allows a customized look and feel, and the ability to add custom workflows."

More CloudStack pros

"It's easy to integrate OpenNebula with our IT systems."

"The most valuable feature of OpenNebula is that it scales very well."

"OpenNebula is easy to deploy and manage compared to other solutions like OpenStack."

"It is quite easy to deploy."

"OpenNebula is lightweight, stable, and easy to customize."

"It makes maintenance very easy and stress-free for our teams."

"The service feature appeals most to us, thus it is the most valuable."

"I also like the ability to build custom functions. I can define a function where I have two types of views and configure the dependencies. The virtual data centers concept allows me to define users. If a user wants to join certain kinds of machines, the host and the other user won't see them. It gives me the flexibility to define multiple views and data centers in one place."

More OpenNebula pros

Cons

"My teammates have complained about the upgrade. The source code had massive files that had to be merged with our own development to upgrade to the latest version of CloudStack. It was quite painful for them. CloudStack could add some cost management tools to give me some control over the costs associated with the number of users of my services."

"It's really hard to delete zones, clusters, datacenters. You need to follow strict rules, which were not properly documented at the time."

"CloudStack lacks a billing solution which would complete it as a full 360-degree product."

"Environment is sensitive, so, unlike VMware, you can not afford middle-skilled engineers, they will ruin everything."

"The numerous, multi-layered drill-down menus make it difficult to find one simple knob to turn."

"The product could improve by embracing newer technologies like GPU virtualization."

"Lack of support for third-party software vendors such as Veeam and Zerto creates limitations on comprehensive offerings which would include backup and disaster recovery."

"For time consuming operations like storage migrations, volume Snapshot restore and the like, we faced issues like MySQL operations timing out and status update failures. Those areas needs improvement."

More CloudStack cons

"Backup features are only available in the enterprise edition. The community version lacks a good solution for making backups."

"There are small things that are hard. For example, making sure that it is going to be installable on public clouds."

"There are no payment gateways in OpenNebula."

"As with all enterprise software licensing, the pricing is not intuitive and must be negotiated; grandfathered contracts are better than anything offered today."

"The web interface could be better. It's not very difficult to use, but there's room for enhancement."

"The UI, monitoring, and alerting could benefit from further improvements."

"The front-facing API can be improved to support lots of requests when the platform is huge with lots of virtual resources."

"An area for improvement in OpenNebula is the number of features it has. The solution doesn't have that many cloud features compared to other solutions. You'd say, "Okay, simplicity over a rich feature list?" Some say, "No, I need a big machine or a cloud interface for my customers to manage resources. I don't have to go and do it for them." Some people do it that way, and it works, but I'd like to improve the limited features in OpenNebula."

More OpenNebula cons

Pricing and Cost Advice

"CloudStack is an open source solution, so you don't need to pay anything for it. When our company develops something specially for CloudStack, it is donated to the Apache Software Foundation and provided to anyone that wants to use it."

"There is no license, so the product is free unless you are buying professional technical support services."

"The Apache CloudStack is open source, so you do not have licenses to purchase."

"Give an effort to planning. If possible, contract a specialized consultant company for the initial setup and knowledge transfer."

"CloudStack is an open-source product."

"The solution is open-source and free."

"As far as I know, CS is still free of charge. If you want to pay some money, Citrix Cloud Platform is based on CS, I think. As for hypervisors – everything as usual, you need to pay for VMware and vCenter. As for XenServer, recently they changed the free feature list, so you may need to pay some money to get useful features like XenMotion."

"It is a 100% open-source solution needing just an Apache license. Also, there are no hidden fees to be paid."

"OpenNebuoa has recently come up with a new subscription model that is economical and a lot of new customers are choosing this as it is an easy subscription model."

"VRA is very expensive but OpenNebula is free."

"OpenNebula gives good value for money."

"The solution is open source so is free."

"The licensing for OpenNebula used to be free, but now it's no longer free. A customer contacted me asking to move to another provider because of the changes in the licensing terms for OpenNebula. I have no information on how much the OpenNebula license is because the customer pays for it, and I only do the integration."

"We use the Community Edition, rather than the Enterprise Edition."

See which vendors are best for you

Use our free recommendation engine to learn which Cloud Management solutions are best for your needs.

See recommendations

879,371 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Computer Software Company

17%

Educational Organization

Manufacturing Company

Comms Service Provider

Computer Software Company

16%

University

10%

Financial Services Firm

Comms Service Provider

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	13
Midsize Enterprise	6
Large Enterprise	12

By reviewers
Company Size	Count
Small Business	7
Midsize Enterprise	6
Large Enterprise	3

Questions from the Community

What is your experience regarding pricing and costs for CloudStack?

CloudStack is open-source, so there is no cost apart from learning. Billing solutions, if outsourced, come at a moderate cost.

What needs improvement with CloudStack?

Enhancements for CloudStack can focus on integrating more hypervisors, as mentioned regarding current features. We're working on a new feature that will allow for certain limited functions, but ove...

What is your primary use case for CloudStack?

My usual use cases for CloudStack involve an AWS style private cloud or public cloud. I can deploy an AWS style cloud using the open source tool that is CloudStack. The use case depends on the cust...

What do you like most about OpenNebula?

The live migration feature has been great and is something we use very often.

What needs improvement with OpenNebula?

The web interface could be better. It's not very difficult to use, but there's room for enhancement. Another area for improvement is the integration with hardware to manage the lower layer of the n...

What is your primary use case for OpenNebula?

Previously, we were using VMware, but recently, we've started using OpenNebula for cloud management. As a big cloud provider, it helps give customers increased control over their clusters. We use L...

VMware Aria Automation vs CloudStack

Comparisons

Compared 10% of the time

Sangfor HCI - Hyper Converged Infrastructure vs CloudStack

Compared 6% of the time

Nutanix Cloud Infrastructure (NCI) vs CloudStack

Compared 6% of the time

VMware Aria Operations vs CloudStack

Compared 4% of the time

HPE OneSphere vs CloudStack

Compared 4% of the time

More CloudStack Competitors

Nutanix Cloud Manager (NCM) vs OpenNebula

Compared 13% of the time

VMware Aria Automation vs OpenNebula

Compared 9% of the time

VMware Cloud Director vs OpenNebula

Compared 8% of the time

Morpheus vs OpenNebula

Compared 8% of the time

Sangfor HCI - Hyper Converged Infrastructure vs OpenNebula

Compared 4% of the time

More OpenNebula Competitors

Product Reports

CloudStack

Download CloudStack product report

Download OpenNebula product report

Also Known As

Vmops, Cloud.com

No data available

Overview

Apache CloudStack is open source software designed to deploy and manage large networks of virtual machines, as a highly available, highly scalable Infrastructure as a Service (IaaS) cloud computing platform.

Apache

OpenNebula provides the most simple but feature-rich and flexible solution for the comprehensive management of virtualized data centers to enable private, public and hybrid IaaS clouds. OpenNebula interoperability makes cloud an evolution by leveraging existing IT assets, protecting your investments, and avoiding vendor lock-in.

OpenNebula is a turnkey enterprise-ready solution that includes all the features needed to provide an on-premises (private) cloud offering, and to offer public cloud services.

Sample Customers

GreenQloud, Exoscale, TomTom, ASG, PC Extreme, ISWest, Grid'5000

Akamai, BBC, Fermilab, Terradue, Surf Sara, Produban, Netways, ESA, China Mobile, BlackBerry, Deloitte, Fuze, Telefonica, Trivago, Nokia, Encore Tech, Beeks.

CloudStack vs. OpenNebula