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Densify vs OpenNebula comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 17, 2024

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

Densify
Ranking in Cloud Management
28th
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
10
Ranking in other categories
Cloud Migration (11th), Virtualization Management Tools (8th), Cloud Analytics (5th), Cloud Cost Management (18th)
OpenNebula
Ranking in Cloud Management
17th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
15
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of June 2026, in the Cloud Management category, the mindshare of Densify is 2.4%, up from 0.9% compared to the previous year. The mindshare of OpenNebula is 1.7%, down from 7.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Cloud Management Mindshare Distribution
ProductMindshare (%)
OpenNebula1.7%
Densify2.4%
Other95.9%
Cloud Management
 

Featured Reviews

AbhishekGupta2 - PeerSpot reviewer
Sr PreSales Cloud Architect at a outsourcing company with 10,001+ employees
Optimized cloud costs and automated right‑sizing have reduced spend while reporting needs improvement
The best features Densify offers are actionable optimization recommendations, which tell you how to reduce costs while maintaining performance; the ML-powered predictive analytics feature, which considers historical patterns to provide recommendations; multi-cloud coverage for optimization across AWS, Azure, and GCP; and a solid balance between performance and cost. Out of those features, I find myself relying on actionable optimization recommendations and predictive analytics features the most because Densify goes one step beyond by providing recommendations considering historical patterns, especially for workloads that only spike during certain times of the month. Densify has positively impacted my organization by providing significant cost savings through right-sizing and eliminating inefficient resources, allowing faster decisions based on data, and reducing manual intervention for cloud operations, thus providing automation of basic cloud routines. I usually see a twenty-five to thirty percent cost saving in my customer's environment, and from a time-saving perspective, it has almost halved the time of the operations team.
FOURES Jean-Philippe - PeerSpot reviewer
Products Manager at a tech services company with 501-1,000 employees
Reliable, simple to manage, and offers great technical support
The support of VXLAN fits with our network management. Thanks to this we can propose mixed solutions using virtual resources on OpenNebula and bare metal servers hosted in our facilities linked to each other on the sale network. This use case is very useful when some applications need bare metal power (Kubernetes workers, huge databases, AI models computations, et cetera). The cluster management is very useful for splitting our different clusters (mutual vs dedicated). We can manage deployments and capacity planning without pain. The API is also really simple and it helped us to develop the Terraform provider to manage OpenNebula like any other cloud infrastructure.

Quotes from Members

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

Pros

"From my perspective, this product is really good, and we are not even using each and every feature."
"Using the reports from Densify will provide us with the trusted advisor backing for our own purchase and provisioning decisions."
"One would be the automatic rebalancing of the environment. That was one feature which helped. With that, we could improve our efficiency of our VMware infrastructure."
"This product has provided us with a more comprehensive solution that is now replacing nearly all other tools which were previously used in the different platforms and environments within the account."
"The solution's tech support is excellent."
"The tool will come back and tell us that we can operate with 1,000 minutes as an example, save 90% on the contractual rate and not run into any issues."
"The Control Console provides a very easy to read dashboard of "too little/just right/too much" resources both for current data and on a historical or predictive basis."
"I would say that the initial thing is that it provides us with a technological basis to expand capacity management beyond Excel."
"OpenNebula freed my customer from doing the maintenance operations of the servers because now that can be done by his clients."
"The live migration feature has been great and is something we use very often."
"I'll definitely recommend OpenNebula because it's an open-source solution that's effortless to set up, and the total cost of ownership is low."
"OpenNebula has very good integration with SAP Storage, is easy to use, has a good UI, and is very scalable."
"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."
"The most valuable feature of OpenNebula is that it scales very well."
"The service feature appeals most to us, thus it is the most valuable."
"It's easy to integrate OpenNebula with our IT systems."
 

Cons

"Initially we talked about some custom reporting, wherein our customer expected certain reports on a few areas, like how the storage is allocated, how the network performance is doing, and how the network utilization is happening for a virtual machine."
"Unfortunately the tools and mechanisms which really came to maturity in the cloud, and were not mainstream on-premise, are still not implemented."
"Densify can be improved in a couple of areas: the learning curve for new users, where it feels like an advanced optimization tool that needs time for full leverage; enhancements in reporting and filter options for more detailed custom reports; and improvements in UI performance since some users feel that the UI is a bit slow or outdated, especially with certain interfaces such as the Kubex Console or the Cloud Decks."
"A closer integration to the service management processes."
"There are times when results are very slow when we search for servers."
"In terms of integration, the tool has great data. However, it's not always meaningful because the true business attributes of how most Fortune 500 companies operate are not maintaining in one tool, they're in a school of many tools."
"Normalization of CPU utilization is required. At present, the data is available based on entitlement level."
"The solution's stability is the primary concern for me."
"The storage feature that they have is a bit confusing."
"There are small things that are hard. For example, making sure that it is going to be installable on public clouds."
"It should have a simple REST API like most other tools. It's the industry standard format. An XML-RPC API gives you an XML document that you have to convert and then do something with that. REST API endpoint provides outputs in a JSON document. I would also like to see support for user data or heat templates, which OpenStack offers, but OpenNebula doesn't have this yet."
"There are no payment gateways in OpenNebula."
"I would like to see OpenNebula add more integration with REST API. XML-RPC API is good, but it becomes a pain to form a resting output."
"They have been saying for the past two and a half years that they would develop a feature to hot-add RAM and CPU, but it does not work."
"Hosting platforms are limited so the deployment process needs improvement."
"The front-facing API can be improved to support lots of requests when the platform is huge with lots of virtual resources."
 

Pricing and Cost Advice

"There was some sticker shock, as this is not just another software product to spit out graphs."
"Setup cost is negligible, as it scales fairly well."
"Densify has licensing setup so you can collect data without licensing. It gives you the ability to collect on everything, then choose later what you would like to license."
"Cost is always involved, but then I feel that this solution is better than other products that we have."
"VRA is very expensive but OpenNebula is free."
"The solution is open source so is free."
"We use the Community Edition, rather than the Enterprise Edition."
"OpenNebula gives good value for money."
"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."
"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."
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Top Industries

By visitors reading reviews
Construction Company
15%
Financial Services Firm
11%
Manufacturing Company
10%
Comms Service Provider
9%
Financial Services Firm
12%
Comms Service Provider
10%
Computer Software Company
9%
University
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business1
Midsize Enterprise1
Large Enterprise11
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise6
Large Enterprise3
 

Questions from the Community

What needs improvement with Densify?
Densify can be improved in a couple of areas: the learning curve for new users, where it feels like an advanced optimization tool that needs time for full leverage; enhancements in reporting and fi...
What is your primary use case for Densify?
My main use cases for Densify include cloud cost optimization, predictive resource sizing, assistance in multi-cloud and hybrid cloud environments, and reducing the manual analysis of the environme...
What advice do you have for others considering Densify?
My advice for others looking into using Densify is to focus on setting up governance policy early, integrate optimization results into your usual sprints, and train FinOps and engineering teams tog...
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Comparisons

 

Overview

 

Sample Customers

AIG, Bank of America, Cigna, Citi
Akamai, BBC, Fermilab, Terradue, Surf Sara, Produban, Netways, ESA, China Mobile, BlackBerry, Deloitte, Fuze, Telefonica, Trivago, Nokia, Encore Tech, Beeks.
Find out what your peers are saying about Densify vs. OpenNebula and other solutions. Updated: June 2026.
900,644 professionals have used our research since 2012.