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IBM Open Liberty vs IBM WebSphere Application Server comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Aug 31, 2025

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
7th
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
7.6
Reviews Sentiment
6.8
Number of Reviews
31
Ranking in other categories
Application Infrastructure (3rd)
 

Mindshare comparison

As of October 2025, in the Application Server category, the mindshare of IBM Open Liberty is 2.1%. The mindshare of IBM WebSphere Application Server is 11.0%, down from 12.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Server Market Share Distribution
ProductMarket Share (%)
IBM WebSphere Application Server11.0%
IBM Open Liberty2.1%
Other86.9%
Application Server
 

Featured Reviews

FABIO LUIS VELLOSO DA SILVA - PeerSpot reviewer
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.
BharathirajaSukumar - PeerSpot reviewer
Efficient load balancing and the clustering, achieved by using the deployment manager, is valuable
I believe that the system is already good. However, for improvement or enhancement, it is user-friendly, but it could offer better choices on the front end for different aspects or options. Sometimes, I have to search extensively for features, as there are no upfront tabs. There is a lack of visible, easy, user-friendly, and straightforward options for the number of features.

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."
"IBM WAS is the backbone for our enterprise content management suite which delivers the primary processes for our customers. Without a good application server, it would be hard to provide a secure layer of midddleware upon which the other applications run. IBM WAS improves the stability of the entire solution and provides a high quality platform for running web-based solutions."
"The integration between IBM tools and applications is very well executed, and the support from IBM is quite good, providing a solid support structure."
"The integration between IBM tools and applications is very well executed."
"The solution has good performance."
"The most valuable features are its user-friendliness and reliability in terms of application hosting."
"The solution is robust. The connection management and the scalability, which IBM provides to the Stack, are also valuable."
"The VPN service is quite useful."
"High availability, alert management, and deployments are the most valuable features for us. We have the ND version so we can do deployments."
 

Cons

"To improve IBM Open Liberty, more integration with Kafka and message systems, and asynchronous messaging would be beneficial."
"Its support documentation could have detailed information on database integration."
"The solution consumes hardware."
"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."
"Sometimes, I feel WebSphere runs a bit slow. It might be loading unnecessary libraries, impacting its performance compared to other application servers."
"In spite of the solution's robustness, it is expensive and a bit difficult to support."
"It should be able to serve more concurrent requests like Oracle. Oracle has more powerful stability, availability, and real-time serving."
"The licensing could be improved, and I would like it to give the longevity of the lifespan of the visions. In the next release, I would like to be able to download and extract the files so that I can just use my application server."
"In the next release of this solution, I would like to see support for the Arabic language."
"While WebSphere mostly supports IBM HTTP Server (IHS) as the web server plugin, I think it would be beneficial if it also supported Apache and NGINX web servers. That would give customers more flexibility in their choices."
 

Pricing and Cost Advice

"It is less costly than one of its competitors."
"The licensing cost is 1,000 of euros for a 30-year table."
"The pricing is a little expensive."
"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."
"The solution is quite expensive."
"It's expensive."
"The price of IBM WebSphere Application Server could be less expensive and there is an annual license required for this solution."
"WebSphere Application Server is expensive, so it may not be a good option for small companies."
"It is very expensive."
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Top Industries

By visitors reading reviews
Financial Services Firm
51%
Computer Software Company
9%
Manufacturing Company
6%
Government
6%
Financial Services Firm
34%
Computer Software Company
10%
Government
7%
Insurance Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business8
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?
In Korea, when you buy IBM iOS, the WebSphere base version is included with iOS. That means no additional cost.
What needs improvement with IBM WebSphere Application Server?
I find the server okay, however, using the Maker instance, the Moving instance, and the Change instance is a little bit complicated without WebSphere knowledge.
 

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: October 2025.
869,202 professionals have used our research since 2012.