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

IBM DevOps Test UI vs k6 Open Source comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on May 21, 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 DevOps Test UI
Ranking in Regression Testing Tools
12th
Average Rating
7.2
Reviews Sentiment
7.1
Number of Reviews
8
Ranking in other categories
Functional Testing Tools (26th)
k6 Open Source
Ranking in Regression Testing Tools
9th
Average Rating
7.6
Reviews Sentiment
7.9
Number of Reviews
2
Ranking in other categories
Load Testing Tools (7th)
 

Mindshare comparison

As of May 2026, in the Regression Testing Tools category, the mindshare of IBM DevOps Test UI is 2.8%, up from 0.9% compared to the previous year. The mindshare of k6 Open Source is 1.2%, up from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Regression Testing Tools Mindshare Distribution
ProductMindshare (%)
k6 Open Source1.2%
IBM DevOps Test UI2.8%
Other96.0%
Regression Testing Tools
 

Featured Reviews

HZ
Lead Systems Tester at Government of Ontario, Canada
Reliable test automation, and test data creation with efficient support
The solution can be improved by removing the need for object matching in the framework. The latest version has increased load time before testing can be run. The reason is that changes were made to how it works with the browser and the startup takes some time. Adjusting those changes to speed up the load time will improve the solution.
ArtemCheremisin - PeerSpot reviewer
Performance Test Engineer at BETBY
Lighter on the RAM and has native Grafana support
The tool's big advantage is that it is more performance-test oriented for experienced testers who know what they are doing. In a normal working setup, performance engineers frequently work with DevOps and development teams. For these teams, k6 Open Source's syntax is much simpler and easier to understand and apply in the working process. Recently, I had a case where I was using another tool, and there wasn't enough memory for it because it required more RAM. k6 Open Source, on the other hand, is lighter and doesn't have a UI, which is beneficial. An engineer I was training could use k6 Open Source scripts even without my help. The tool is more efficient and has native support with Grafana, as both are developed by the same company. This integration enhances monitoring and loss ratio tracking. Thanks to its intelligent GUI, k6 Open Source's design is simpler, particularly for complex scenarios. When we need to manage hundreds of thousands or millions of transactions per minute, the solution becomes a game-changer compared to JMeter.

Quotes from Members

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

Pros

"It is 100% compatible with all sorts of database integrations and is compatible with all types of open source TFT-based applications, which makes it a great product to have."
"IBM Rational Functional Tester is very contextual."
"By automating regression test suites using this product, we were able to show time savings of more than 1200 hours in less than ONE year."
"Test automation is most valuable because it saves a lot of time."
"Test automation is most valuable because it saves a lot of time."
"As it is built on Ellipse/Java and costs less than other tools, it is recommended."
"The most valuable feature is the UI component tester, which analyzes the changes in UI elements and allows me to automatically adapt and change my automation testing."
"Robust API provides quick turnaround for developers to understand and automate functional test case quickly."
"The standout feature of k6 is its strong focus on API performance testing."
"The tool's big advantage is that it is more performance-test oriented for experienced testers who know what they are doing. In a normal working setup, performance engineers frequently work with DevOps and development teams. For these teams, k6 Open Source's syntax is much simpler and easier to understand and apply in the working process."
 

Cons

"The latest version has increased load time before testing can be run."
"It does not fully justify being a paid tool, and it needs improvement."
"With version 8.5 we faced workspace crash issues frequently."
"The object repository used for identifying objects can be made better. It has been noticed that the RFT tool is unable to identify some objects, due to which we are unable to add them to the object repository."
"The latest version has increased load time before testing can be run."
"If you look at today's current context, I wouldn't recommend RFT because there are far more advanced solutions and products available."
"As many of our products are moving from PC to mobile, the most important thing that this solution needs is mobile app support."
"If in the future there is no support for mobile applications, then we will be using it less."
"One area where k6 could improve is by introducing a GUI similar to JMeter."
 

Pricing and Cost Advice

"Licensing is good but the prices for the products are expensive. A single-user license may go for something like $10,000 to $30,000. There are no additional costs, and support is included within that price."
Information not available
report
Use our free recommendation engine to learn which Regression Testing Tools solutions are best for your needs.
894,738 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Manufacturing Company
15%
Outsourcing Company
11%
Construction Company
9%
Financial Services Firm
8%
Computer Software Company
14%
Financial Services Firm
11%
Construction Company
8%
Retailer
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business1
Midsize Enterprise3
Large Enterprise5
No data available
 

Questions from the Community

Ask a question
Earn 20 points
 

Also Known As

IBM Rational Functional Tester
Load Impact
 

Overview

 

Sample Customers

Edumate
rackspace, salesforce.com, IBM, servicenow, Nasdaq, JWT
Find out what your peers are saying about IBM DevOps Test UI vs. k6 Open Source and other solutions. Updated: April 2026.
894,738 professionals have used our research since 2012.