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IBM Rational Test Workbench vs Katalon Studio comparison

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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
16th
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 (18th)
Katalon Studio
Ranking in API Testing Tools
4th
Ranking in Test Automation Tools
3rd
Average Rating
8.0
Reviews Sentiment
6.6
Number of Reviews
56
Ranking in other categories
Regression Testing Tools (3rd)
 

Mindshare comparison

As of November 2026, in the API Testing Tools category, the mindshare of IBM Rational Test Workbench is 3.3%, up from 1.1% compared to the previous year. The mindshare of Katalon Studio is 5.9%, down from 12.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
API Testing Tools Mindshare Distribution
ProductMindshare (%)
Katalon Studio5.9%
IBM Rational Test Workbench3.3%
Other90.8%
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.
TM
Quality Automation Specialist at SymphonyAI
Fast UI automation has reduced regression effort and has improved tester onboarding
The best features Katalon Studio offers include how even a manual tester can use it with built-in keywords and recording features. A framework does not need to be built from scratch, unlike other tools. Katalon Studio provides an out-of-the-box automation framework, which allows quick starts, and its built-in keywords and record and playback functionality make it easier for manual testers transitioning to automation. Additionally, the object repository simplifies test creation and makes maintenance more manageable. The test suite and execution profiles also allow easy test organization for environment-specific execution, and the built-in reports provide ready-to-share insights with the team. If I had to select one standout feature, the framework setup stands out as the best feature, as it makes starting automation quickly and straightforwardly without heavy setup. Katalon Studio has positively impacted my organization by helping the team reduce manual regression effort and improve release confidence by catching UI issues earlier. It positively impacted the company by speeding up test execution and allowing faster feedback before releases, which reduces last-minute defects. The quick setup of the framework enabled the team to start automation faster, improving overall QA productivity without increasing team size. Additionally, automated regression tests maintained consistent test coverage and reduced the risk of repetitive manual reports, which overall helped Katalon Studio reduce manual regression effort, improve test consistency, and provide faster feedback to the team, enhancing release quality.

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."
"All IBM testing tools are really well integrated."
"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."
"Using service virtualization, we are able to accelerate the testing and development activity."
"This solution provides for API testing, functional UI testing, performance testing, and service virtualization."
"If a company is looking to buy a user-friendly software testing tool while having to pay less money, Katalon may be the best option as compared to UFT or TestComplete."
"The learning curve is not steep, and it is quite easy to get used to it, and I'm sure it won't take you much time, but the results will be worth it many times over."
"Katalon Studio is user-friendly."
"Katalon Studio has positively impacted our organization by helping our team save a lot of time by automating repetitive testing, allowing us to test faster, find issues earlier, improve test accuracy, and reduce manual effort."
"Before using Katalon Studio, we spent weeks to verify all test cases manually for every major build, now we need only several days to fully perform regression testing, reducing the time to market greatly."
"Overall, I recommend it highly and find it easy to use with many integrations."
"Katalon Studio is easier to use compared to SmartBear TestComplete."
"The recording feature of this product is very valuable for our testing purposes."
 

Cons

"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."
"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. 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."
"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."
"Improvements are needed, particularly regarding desktop application recording and playback, which should be more flexible and not limited to relying solely on .exe files installed on the system."
"The product is comparatively slow."
"We would like to see improved integration with various reporting tools; this would make our testing data more complete."
"The reporting is very good, but it could be better."
"Sometimes the IDE can be a little stuck or may lag a little bit, and I have had issues capturing certain XPaths where the record and playback does not necessarily capture the accurate XPath."
"They need to work on documentation to make it more centralized and easier to find what you are looking for."
"I would like if this tool can work without any problems for React Native."
"Object Spy is brittle. When I try to capture objects, I have to proceed multiple times before it works."
 

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."
"We were using the free version of this tool."
"There is no cost for setup or licensing."
"It is freeware software, so start using it."
"This product is freeware, so there is no charge for using it."
"Katalon Studio is less expensive than other solutions, such as Micro Focus UFT."
"The product is expensive."
"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."
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Top Industries

By visitors reading reviews
Construction Company
18%
Financial Services Firm
18%
Outsourcing Company
12%
Manufacturing Company
9%
Financial Services Firm
13%
Manufacturing Company
11%
Outsourcing Company
9%
Computer Software Company
8%
 

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: September 2026.
920,939 professionals have used our research since 2012.