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Azul Zulu vs IBM WebSphere Application Server comparison

 

Comparison Buyer's Guide

Executive Summary

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

Azul Zulu
Ranking in Application Infrastructure
11th
Average Rating
8.6
Reviews Sentiment
7.7
Number of Reviews
2
Ranking in other categories
AI Customer Experience Personalization (21st), AI Content Creation (11th)
IBM WebSphere Application S...
Ranking in Application Infrastructure
3rd
Average Rating
7.8
Reviews Sentiment
5.4
Number of Reviews
32
Ranking in other categories
Application Server (5th)
 

Mindshare comparison

As of May 2026, in the Application Infrastructure category, the mindshare of Azul Zulu is 3.6%, down from 5.2% compared to the previous year. The mindshare of IBM WebSphere Application Server is 5.3%, down from 12.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Infrastructure Mindshare Distribution
ProductMindshare (%)
IBM WebSphere Application Server5.3%
Azul Zulu3.6%
Other91.1%
Application Infrastructure
 

Featured Reviews

BasilJiji - PeerSpot reviewer
System Engineer at a retailer with 10,001+ employees
Standardized our Java estate and have reduced licensing costs while maintaining strong support
Azul Zulu's ability to allow us to standardize our Java estate on a single and well-supported platform stands out as one of its best features. This standardization simplifies our compliance audits and ensures all our applications receive timely security updates.Azul Zulu positively impacts our organization by providing a platform that allows us to standardize Java on a well-supported platform. Without the high cost associated with other proprietary vendors, Azul Zulu provides an excellent platform for running our applications.
CF
Senior Manager, MW & DB Automation at a computer software company with 11-50 employees
Has worked seamlessly in complex clustered environments and supports long-term development efforts
IBM WebSphere Application Server is currently at version 9.0.5.23. In recent months, they released fix 23, as they periodically release fixes. Previously, they frequently increased versions, but now they maintain 9.0.5 with different releases. It's based on Java J2EE 7 and Java SDK 1.8. Oracle announced that 2030 will be the last year when Java SDK 1.8 will be supported. Oracle currently deploys Java 2.x in parallel, with the latest being version 25. The future of IBM WebSphere Application Server remains uncertain since it's based on Java 1.8 and Java 7. I haven't found any white papers or official documentation from IBM outlining their trajectory post-2030.

Quotes from Members

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

Pros

"We've had no issues with stability."
"We achieved specific outcomes from using Azul Zulu by reducing our Java licensing and support costs by approximately 70% when compared to our previous Oracle contract."
"The only reason why we're currently using WebSphere is that the integration of the authentication with Azure is very quick."
"IBM WebSphere Application Server is easy to use."
"The solution is very stable and robust."
"The integration between IBM tools and applications is very well executed, and the support from IBM is quite good, providing a solid support structure."
"IBM WAS is extremely scalable. It is easy to add additional servers and to divide the load over servers in all kinds of ways."
"It has good stability of the application server in the long term compared to other solutions."
"IBM WAS is the backbone for our enterprise content management suite which delivers the primary processes for our customers."
"It's an awesome solution. Compared to everything else that's out there in the market right now, IBM MQ is hands down the best solution available and that's based on 40 years of IT experience."
 

Cons

"Improvements for Azul Zulu could include more automated tools for unused code visibility integrated directly into the standard portal to help further optimize our cloud footprints."
"It needs a better update daemon. At this time the process is manual and could be an issue on multiple desktop deployments."
"Based on the field and based on the build that was provided, we've noticed a lot of constraints in terms of the performance now."
"What could be improved in IBM WebSphere Application Server is its interconnection with other products, for example, Kafka. What I'd like to see in the next release of the solution is a better graphical user interface."
"I think IBM WebSphere Application Server is a dead solution and will probably fade out."
"When we run into memory or locking issues, we resort to using third-party tools. However, it would be preferable to have native tools for debugging this type of problem."
"Sometimes, I feel WebSphere runs a bit slow. It might be loading unnecessary libraries, impacting its performance compared to other application servers."
"In the next release of this solution, I would like to see support for the Arabic language."
"IBM WebSphere Application Server hasn't changed much. It's still a heavyweight for any company compared to what you get. Unless your code base is deeply linked with it, I don't think it's a great idea to go with this solution. The current trend is toward modularity and containerization, and given the product's requirements, containerization will be difficult. There is a memory requirement as well."
"In spite of the solution's robustness, it is expensive and a bit difficult to support, which is why companies nowadays tend to use more lightweight products such as Tomcat or cloud versions of the products."
 

Pricing and Cost Advice

Information not available
"The solution is quite expensive."
"The pricing is a little expensive."
"I don't remember the price, but there are no additional costs."
"My company is on a perpetual or permanent license agreement with IBM WebSphere Application Server. There's also a pay-per-use option, but customers rarely choose that option. Most of the customers are on the perpetual license deal that's all-inclusive. As the license cost is quite expensive, I'm rating it two out of five."
"When you purchase Maximo, you get WebSphere for free."
"If your application is just a web app that does not need to scale big, you can obtain a single core license of WAS Express edition, which has almost the same features with limited processing cores. If you manage a very big application farm (i.e. need to run 10 or more WAS servers) it is better to get IBM WAS Hypervisor Edition."
"We pay around $200,000 annually."
"The price of IBM WebSphere Application Server could be less expensive and there is an annual license required for this solution."
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Top Industries

By visitors reading reviews
Financial Services Firm
31%
Construction Company
12%
Retailer
11%
Computer Software Company
9%
Financial Services Firm
32%
Computer Software Company
8%
Insurance Company
6%
Government
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise6
Large Enterprise23
 

Questions from the Community

What needs improvement with Azul Zulu?
Improvements for Azul Zulu could include more automated tools for unused code visibility integrated directly into the standard portal to help further optimize our cloud footprints. The other core J...
What is your primary use case for Azul Zulu?
Azul Zulu serves as our primary Java runtime, providing a stable, 100% open-source, and certified solution for our production microservices. We utilize it to ensure cross-platform compatibility acr...
What advice do you have for others considering Azul Zulu?
My advice for others looking into using Azul Zulu is to perform a pilot migration with one non-critical application first. You will likely find that it is truly a drop-in replacement, which will gi...
What is your experience regarding pricing and costs for IBM WebSphere Application Server?
At Royal Bank, which is a major IBM customer with mainframes and numerous IBM products, they have a specific agreement regarding pricing. The pricing structure for large enterprise customers differ...
What needs improvement with IBM WebSphere Application Server?
IBM WebSphere Application Server is currently at version 9.0.5.23. In recent months, they released fix 23, as they periodically release fixes. Previously, they frequently increased versions, but no...
What is your primary use case for IBM WebSphere Application Server?
I was part of an application where I integrated IBM WebSphere Application Server with Node.js and Blue Prism. I did a lot of REST applications because at my core, I'm a developer. Currently, I'm an...
 

Also Known As

No data available
WebSphere Application Server
 

Overview

 

Sample Customers

Microsoft, Kyocera, OKI, Alcatel-Lucent Enterprise, Voya Financial
TalkTalk, Property management group, E.SUN Bank, Ohio National Financial Services, Aviarc, Cincom Systems, FJA-US, D+H, Staples, Michigan Municipal League
Find out what your peers are saying about Azul Zulu vs. IBM WebSphere Application Server and other solutions. Updated: April 2026.
893,915 professionals have used our research since 2012.