No more typing reviews! Try our Samantha, our new voice AI agent.

IBM Rational Test Workbench vs Katalon Studio comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Sep 11, 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

IBM Rational Test Workbench
Ranking in API Testing Tools
14th
Ranking in Test Automation Tools
28th
Average Rating
7.6
Reviews Sentiment
7.3
Number of Reviews
4
Ranking in other categories
Performance Testing Tools (19th)
Katalon Studio
Ranking in API Testing Tools
4th
Ranking in Test Automation Tools
2nd
Average Rating
8.0
Reviews Sentiment
6.6
Number of Reviews
56
Ranking in other categories
Regression Testing Tools (2nd)
 

Mindshare comparison

As of May 2026, in the API Testing Tools category, the mindshare of IBM Rational Test Workbench is 3.1%, up from 0.6% compared to the previous year. The mindshare of Katalon Studio is 8.1%, down from 13.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
API Testing Tools Mindshare Distribution
ProductMindshare (%)
Katalon Studio8.1%
IBM Rational Test Workbench3.1%
Other88.8%
API Testing Tools
 

Featured Reviews

reviewer1513668 - PeerSpot reviewer
IT Specialist, ITE at a government with 10,001+ employees
Good reporting and interface, but supports limited types of protocols and requires low-level script editing
It should have more interfaces. In terms of interfaces or protocols, what you can do with Rational is far limited as compared to other products out there. What it does, it does great, but it only gives you limited types of protocols. It supports between 8 to 15 types of protocols, whereas other test tools give you 20 to 30 types of protocols with which you can do testing and convert to script. It records Javascript-based scripts, and you got to know a little bit of Java to basically be able to edit them, but the level of editing you got to do is very low. I like that, but the ability to edit the script is not as good as Parasoft or LoadRunner, which have C-Script.
Ramanagowda Hullur - PeerSpot reviewer
Senior Automation Engineer at Stryker
Recording limitations and remote access challenges have affected desktop application testing
Katalon Studio has proven effective in our deliverables, particularly in designing the framework where other tools typically require coding in client libraries such as Python or Java. With Katalon Studio, there is no such complexity, allowing us to organize projects modularly based on folder structures without needing to write separate code. The self-healing feature for web application automation and its built-in CI/CD ecosystem integration eliminates the need for external tools for pipeline setup. Katalon Studio excels in CI/CD integration, providing an inbuilt ecosystem without the need for external setup, and it features a postings structure along with keyword and library availability. Newcomers to the team can easily adapt to the setup or project structure, which contributes to its popularity, along with its low-code or no-code capability that allows for a comprehensive platform supporting web, mobile, API, and desktop automation. The self-healing mechanism for test cases autonomously identifies issues with locators and ensures they continue functioning, which is impressive, along with the robust object repository. Katalon Studio has significantly aided our team, especially when clients expect deliveries for CI/CD integration that requires automation test scripts to run on a daily schedule. The self-healing feature automatically identifies available locators for elements in the DOM, ensuring that test cases remain functional. Katalon Studio has positively impacted our organization by facilitating faster delivery when clients have urgent requirements. We can deliver quickly based on urgency due to the features Katalon Studio provides. This has led to significant reductions in time spent on framework configuration, designing, and training individuals who are unfamiliar with the tool, helping us save both time and costs.

Quotes from Members

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

Pros

"Reporting is pretty good. Its interface is also good. I'm overall pretty happy with the functionality and use of IBM Rational Test Workbench."
"This solution provides for API testing, functional UI testing, performance testing, and service virtualization."
"Using service virtualization, we are able to accelerate the testing and development activity."
"IBM Rational integrates the testing software as Rational Test Workbench, which is quite convenient and efficient as it is able to automate the test scripts."
"Reporting is pretty good. Its interface is also good. I'm overall pretty happy with the functionality and use of IBM Rational Test Workbench."
"All IBM testing tools are really well integrated."
"It is good for API testing. It is also good for continuous integration testing. You can connect it to Jenkins."
"It provides us daily feedback on the status (failing/working) of the core features of our websites."
"I rate Katalon Studio's scalability a four out of five."
"The recording feature of this product is very valuable for our testing purposes."
"The initial setup of Katalon Studio was easy."
"It provides us daily feedback on the status (failing/working) of the core features of our websites."
"Our clients have requested by all types of testing, including mobile, desktop, and API testing and all of those are covered by Katalon. I find that very valuable, very complete."
"The most valuable features of Katalon Studio are its user-friendliness and the AI smart healing capabilities."
 

Cons

"There are a number of things that they can do to simplify the tools, but the most important thing that they need to do is simplify the installation."
"Rational Performance Tester supports cloud technology in the version 8.7, playing test scripts back on the cloud is not stable."
"It should have more interfaces. In terms of interfaces or protocols, what you can do with Rational is far limited as compared to other products out there."
"Implementing custom functions is bit tedious job, as ECMA script does not support some of the standard java-script functions, Also the Script editor window is not user friendly."
"There are a number of things that they can do to simplify the tools, but the most important thing that they need to do is simplify the installation."
"It should have more interfaces. In terms of interfaces or protocols, what you can do with Rational is far limited as compared to other products out there. What it does, it does great, but it only gives you limited types of protocols. It supports between 8 to 15 types of protocols, whereas other test tools give you 20 to 30 types of protocols with which you can do testing and convert to script. It records Javascript-based scripts, and you got to know a little bit of Java to basically be able to edit them, but the level of editing you got to do is very low. I like that, but the ability to edit the script is not as good as Parasoft or LoadRunner, which have C-Script."
"We found that Katalon Studio crashes a lot of the time and it would be very good if it were more stable."
"Extending the certification validity, especially after the trial period, would be beneficial."
"I can say that in my company, we struggle a lot with iOS automation."
"Katalon Studio could improve having visual testing, but I think they're launching that feature very soon. We would like to see an increase in the usage of AI."
"It should be faster while executing, and there are some defects, like choosing the new device with the test case."
"Now we are having difficulties in using it and had to limit our automation experts to the features that Katalon allows us to use for free. It was free access and they claimed that it would be free for all time."
"Katalon Studio should improve its usability, it still needs some improvement where users can easily use it to build their automation suite. It requires some initial work to set it up. There should be more keywords in the library to limit the coding requirements, this will allow a non-technical person easily start using it, which would be better."
"It should start working on Silverlight automation as well."
 

Pricing and Cost Advice

"The pricing is a little bit on the higher side, although it is really good."
"It doesn't really concern me. Licensing is on a yearly basis."
"The price is not high it's good."
"Its pricing is quite reasonable. If you require their help in getting started, then there is a professional services fee on top of the product license cost."
"Katalon Studio is a free tool."
"It is freeware software, so start using it."
"There is no cost for setup or licensing."
"The tool is affordable."
"Katalon Studio is less expensive than other solutions, such as Micro Focus UFT."
"The product is affordable. It has an average and competitive pricing compared to other vendors."
report
Use our free recommendation engine to learn which API Testing Tools solutions are best for your needs.
893,221 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Financial Services Firm
26%
Manufacturing Company
11%
Construction Company
9%
Healthcare Company
7%
Financial Services Firm
15%
Computer Software Company
12%
Manufacturing Company
10%
Healthcare Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business21
Midsize Enterprise14
Large Enterprise25
 

Questions from the Community

Ask a question
Earn 20 points
What is your experience regarding pricing and costs for Katalon Studio?
Pricing felt reasonable for the features provided, especially considering the time saved during the automation setup and execution. From a user perspective, Katalon Studio offers good value, partic...
What needs improvement with Katalon Studio?
I feel nothing needs improvement for Katalon Studio, as it is already the best in the industry, providing the best enhancement for users. Katalon Studio is already top-notch with no need to improve.
What is your primary use case for Katalon Studio?
My main use case for Katalon Studio is to work on many projects, and my tester has four years of experience in testing, which allows me to specialize in functional testing, regression, web, and mob...
 

Also Known As

Rational Test Workbench, IBM Rational Performance Tester, IBM Functional Tester, IBM Rational Test Virtualization Server
No data available
 

Overview

 

Sample Customers

Financial Insurance Management Corp.
Coca-Cola Tesla Black Board TaTa Consultancy Services Sony
Find out what your peers are saying about IBM Rational Test Workbench vs. Katalon Studio and other solutions. Updated: April 2026.
893,221 professionals have used our research since 2012.