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IBM Open Liberty vs Tomcat comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 7, 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
8th
Average Rating
10.0
Reviews Sentiment
2.8
Number of Reviews
2
Ranking in other categories
No ranking in other categories
Tomcat
Ranking in Application Server
1st
Average Rating
8.4
Reviews Sentiment
7.7
Number of Reviews
53
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of February 2026, in the Application Server category, the mindshare of IBM Open Liberty is 4.3%. The mindshare of Tomcat is 13.2%, down from 19.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Server Market Share Distribution
ProductMarket Share (%)
Tomcat13.2%
IBM Open Liberty4.3%
Other82.5%
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.
Sanjay Sahu - PeerSpot reviewer
Project Manager at Capgemini
Customization and flexibility enhance web applications while support effectively resolves queries
Regarding improvements in Tomcat, I personally haven't used it very extensively, but all Apache products are very useful for our web applications. Although the web server setup is a little different, it has everything we have been using, and as of now, everything is good with no deficiencies that need improvement. I think that Tomcat needs a more robust logging error details feature; the current logging feature is available, but it should be more user-friendly. This improvement would make error handling more user-friendly.

Quotes from Members

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

Pros

"The flexibility to create different services in different environments using IBM Open Liberty was important."
"It is a stable solution compared to other vendors."
"The most valuable features of this solution are the general web server features."
"I find the quick startup valuable, particularly the static quick startup."
"The product is easy to use."
"I would rate the pricing a ten out of ten, where one is high price and ten is low price. The pricing is pretty low."
"Tomcat is a lightweight application server, which makes it easy to deploy and install small applications."
"The most valuable feature is how simple it is to deploy the solution."
"The most valuable feature of this solution is that it supports Java Enterprise."
"The product's most valuable feature is the ability to host applications."
 

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."
"It would be great if they offered more integration of monitoring tools."
"Tomcat is used mainly for database connections. As of now, we configure that environment for any database configuration. But if any utility can integrate where we can pass the database connection as a string of details, then it should encrypt them and keep them inside. From that security perspective, Tomcat requires improvement. They should integrate this security feature."
"Tomcat's stability could be improved, especially when handling more memory-intensive, large-scale applications."
"I have no recommendations for improvements."
"Sometimes, the UI part does not run properly, or the server goes down."
"The solution cannot host .NET applications."
"Tomcat needs to improve its user interface."
"Java functions should be built better into the solution."
 

Pricing and Cost Advice

"It is less costly than one of its competitors."
"The price of the solution is good."
"We are currently using the open-source version."
"It is an expensive product."
"Tomcat is an open source solution."
"The solution is free."
"It is an open-source tool and is free of cost."
"Tomcat's pricing is very cheap."
"The solution is open source so is free."
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Top Industries

By visitors reading reviews
Financial Services Firm
50%
Manufacturing Company
7%
Computer Software Company
7%
Insurance Company
5%
Financial Services Firm
23%
Government
12%
Comms Service Provider
9%
Computer Software Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business23
Midsize Enterprise4
Large Enterprise28
 

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 Tomcat?
Tomcat's ease of use has positively impacted project timelines. Tomcat already has high availability – it doesn't go down so often and doesn't require a lot of maintenance. As long as your applicat...
What needs improvement with Tomcat?
Tomcat lacks a visual tool for configuring. Everything is from the command line. I would like a visual tool for configuration to be added to Tomcat, as I see this feature missing.
What is your primary use case for Tomcat?
I work with Tomcat as a programmer, but not as an administrator. My major use case involves using Tomcat, mostly enclosed in any Java image for a Java application for REST API. I do not work with t...
 

Overview

 

Sample Customers

Information Not Available
1. Adobe Systems 2. Amazon 3. Apple 4. AT&T 5. Bank of America 6. Boeing 7. Cisco Systems 8. Citigroup 9. Dell 10. eBay 11. Facebook 12. General Electric 13. Google 14. Hewlett-Packard 15. IBM 16. Intel 17. JPMorgan Chase 18. Microsoft 19. Netflix 20. Oracle 21. PayPal 22. Salesforce 23. Samsung 24. Sony 25. Target 26. Twitter 27. Uber 28. Verizon 29. Visa 30. Volkswagen 31. Walmart 32. Yahoo
Find out what your peers are saying about IBM Open Liberty vs. Tomcat and other solutions. Updated: February 2026.
881,733 professionals have used our research since 2012.