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IBM Open Liberty vs IBM WebSphere Application Server comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 8, 2026

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

IBM Open Liberty
Ranking in Application Server
8th
Average Rating
10.0
Reviews Sentiment
2.8
Number of Reviews
2
Ranking in other categories
No ranking in other categories
IBM WebSphere Application S...
Ranking in Application Server
5th
Average Rating
7.8
Reviews Sentiment
5.4
Number of Reviews
32
Ranking in other categories
Application Infrastructure (3rd)
 

Mindshare comparison

As of March 2026, in the Application Server category, the mindshare of IBM Open Liberty is 4.7%. The mindshare of IBM WebSphere Application Server is 8.7%, down from 12.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Server Mindshare Distribution
ProductMindshare (%)
IBM WebSphere Application Server8.7%
IBM Open Liberty4.7%
Other86.6%
Application Server
 

Featured Reviews

FABIO LUIS VELLOSO DA SILVA - PeerSpot reviewer
Partner at SouJava
Has enabled flexible deployment of modular services with high availability and smooth dynamic updates
The best features of IBM Open Liberty are the implementation of MicroProfile and Jakarta EE, along with fault tolerance and high availability. It's easy to use and deploy new features. The profile is easy to configure and set up features. For example, using fault tolerance from MicroProfile or using servlets or JAX-RS allows for easy configuration and creation of modular applications. The configuration is modular. The main point for us in this project was high availability, high performance, and the implementation of MicroProfile and Jakarta EE. We utilized the modular architecture of IBM Open Liberty by creating different microservices using different environments. We created different configurations for different services using the configuration of IBM Open Liberty. This was very beneficial. We created different environments only by changing the configuration, depending on the functionality we needed. It was good and very flexible for us. I used the dynamic updates feature of IBM Open Liberty and different configurations in different services and servers, based on the functionality we provided for our clients. The flexibility to create different services in different environments using IBM Open Liberty was important. The high availability is guaranteed by the architecture of IBM Open Liberty, Java, and MicroProfile. The architecture guaranteed high availability, and the flexibility comes from being able to configure needed features. There's no need to load all WebSphere or functionalities in all environments. I can configure it and create a more highly available and scalable process. I implemented monitoring tools for IBM Open Liberty using Grafana and OpenTracing using the functionalities from MicroProfile and IBM Open Liberty. The monitoring tools helped with managing system performance.
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

"It is a stable solution compared to other vendors."
"The flexibility to create different services in different environments using IBM Open Liberty was important."
"The only reason why we're currently using WebSphere is that the integration of the authentication with Azure is very quick. WebSphere has something that can immediately connect with Azure Active Directory."
"The solution has good performance."
"Security: It is compatible with the latest Java 8 security features, supports FIPS 140-2 and NIST SP 800-53 with strong ciphers and cryptography keys, and supports TLS 1.2 completely. Also, configuring client and server certificates is relatively easy."
"Without the Admin Console it would be very hard to configure JVM settings, JDBC datasources, mail session settings, and security providers."
"It has good stability of the application server in the long term compared to other solutions."
"The solution is robust. The connection management and the scalability, which IBM provides to the Stack, are also valuable."
"The product offers good performance."
"WebSphere Application Server's best features include the data subscription and connection viewer."
 

Cons

"Its support documentation could have detailed information on database integration."
"To improve IBM Open Liberty, more integration with Kafka and message systems, and asynchronous messaging would be beneficial."
"WebSphere is very cumbersome and not user-friendly. It used to have its own JVM, which presented challenges such as different architecture and memory leaks."
"It should be able to serve more concurrent requests like Oracle. Oracle has more powerful stability, availability, and real-time serving."
"IBM needs to pay attention to market changes more quickly. We now have Java 9 and very soon Java EE8. We do not want to wait for two or three years after their release until they are supported by the new version."
"The business logic side of it is sort of missing in the sense that if I want to track and measure velocity, it is not really available. You have to buy another application and embark on a separate implementation. Instead of having different licensing, IBM DataPower should be integrated with WebSphere. It will allow us to build the business layer and rules a lot more efficiently, rather than developing rules within the application. It would be good if we can set up the business layer through parametrization rather than development. IBM DataPower has the business rule and the controls, and if it can be integrated, it would be fantastic. It will help the application in working better in terms of security features and business logic. If you're going to use it for open banking, you will be able to monitor velocity on the total pricing."
"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."
"When compared with WebLogic, Weblogic is lighter and consumes less memory."
"The installation has room for improvement."
"They should make the solution more lightweight and not bundle everything into a single product."
 

Pricing and Cost Advice

"It is less costly than one of its competitors."
"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."
"The solution is quite expensive."
"The licensing cost is 1,000 of euros for a 30-year table."
"WebSphere Application Server is expensive, so it may not be a good option for small companies."
"Room for improvement would only be in the licensing. As with all IBM products the licensing can be complex and expensive. Bargain well and try to get as much discount as possible. Discounts of 85% are possible. Without the discount, I think the product is overrated."
"There is an Eclipse Plugin provided by IBM, so no need to buy IBM Rational Application Developer or Rational Software Architect tools."
"It is very expensive."
"The price of this product is higher than that of competitors."
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Top Industries

By visitors reading reviews
Financial Services Firm
52%
Computer Software Company
7%
Manufacturing Company
7%
Insurance Company
6%
Financial Services Firm
32%
Computer Software Company
9%
Insurance Company
7%
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 Open Liberty?
To improve IBM Open Liberty, more integration with Kafka and message systems, and asynchronous messaging would be beneficial. Having more integration with Kafka, Mongo, and middleware systems that ...
What is your primary use case for Open Liberty?
I used IBM Open Liberty for an application for financial services using IBM Open Liberty and MicroProfile to process data for financial services work.
What advice do you have for others considering Open Liberty?
I used IBM Open Liberty in the past in a project, but today I'm not using it anymore. I had a good experience working with it in a financial services company. This was very beneficial. My review ra...
What do you like most about IBM WebSphere Application Server?
Network Deployment is the most useful feature for scalability. It has many features within the standard WebSphere Application Server edition.
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...
 

Also Known As

No data available
WebSphere Application Server
 

Overview

 

Sample Customers

Information Not Available
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 IBM Open Liberty vs. IBM WebSphere Application Server and other solutions. Updated: March 2026.
884,873 professionals have used our research since 2012.