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BlazeMeter vs IBM Rational Test Workbench comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Dec 15, 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

BlazeMeter
Ranking in Performance Testing Tools
6th
Ranking in API Testing Tools
13th
Ranking in Test Automation Tools
16th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
50
Ranking in other categories
Functional Testing Tools (14th), Load Testing Tools (6th)
IBM Rational Test Workbench
Ranking in Performance Testing Tools
18th
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
No ranking in other categories
 

Mindshare comparison

As of September 2026, in the Performance Testing Tools category, the mindshare of BlazeMeter is 4.8%, down from 9.0% compared to the previous year. The mindshare of IBM Rational Test Workbench is 2.2%, up from 1.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Performance Testing Tools Mindshare Distribution
ProductMindshare (%)
BlazeMeter4.8%
IBM Rational Test Workbench2.2%
Other93.0%
Performance Testing Tools
 

Featured Reviews

Nirav Patel - PeerSpot reviewer
Senior QA Engineer at a tech vendor with 1,001-5,000 employees
Performance testing for peak retail events has become faster and delivers reliable user load insights
BlazeMeter offers numerous features, but the ones that stand out to me include its ease of use, predefined configurations for high-scale performance testing that can be executed quickly, AI-powered testing, scriptless testing, and accurate API testing with an auto-correction plugin to ensure the accuracy of the tests performed. While I cannot pinpoint a single favorite feature, I find myself using parallel execution frequently because this feature allows multiple tests to be run at once, greatly enhancing my workflow. BlazeMeter effectively handles dependency in microservice architecture, for example, linking one API to another to manage response flows, such as the login and registration APIs, which flows efficiently through BlazeMeter. BlazeMeter has positively impacted my organization by reducing the time required for testing due to its robust features that yield efficient results. Unlike JMeter, which has limitations on user simulations, BlazeMeter allows me to test any number of users, helping my e-commerce website manage unpredictable traffic loads effectively while delivering accurate results I can trust to improve my systems.
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.

Quotes from Members

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

Pros

"The most valuable aspect of BlazeMeter is its user-friendly nature, ability to conduct distributed load testing and comprehensive analysis and reporting features. It particularly excels in providing a clear and organized view of load test results."
"The most valuable feature of the solution is its ability to run high loads and generate reports."
"The feature that stands out the most is their action groups. They act like functions or methods and code, allowing us to reuse portions of our tests. That also means we have a single point for maintenance when updates are required. Instead of updating a hundred different test cases, we update one action group, and the test cases using that action group will update."
"BlazeMeter support and flexibility is also hugely valuable."
"BlazeMeter can be used for both API and performance testing, it is a multi-facility tool."
"It is focused on concurrency testing, which has been especially beneficial for us. Their previous experiences had caused major setbacks."
"The testing it offers is very useful and compatible with many platforms."
"The orchestration feature is the most valuable. It's like the tourist backend component of BlazeMeter. It allows me to essentially give BlazeMeter multiple JMeter scripts and a YAML file, and it will orchestrate and execute that load test and all those scripts as I define them."
"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."
"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."
"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."
 

Cons

"The product currently doesn't allow users to run parallel thread groups, making it an area that should be considered for improvement."
"There was one feature that I wanted that they didn't have."
"The scanning capability needs improvement."
"Version controlling of the test cases and the information, the ability to compare the current version and the previous version within Runscope would be really nice. The history shows who made the changes, but it doesn't compare the changes."
"Integration is one of the things lacking in BlazeMeter compared to some newer options."
"If the solution had better support and the documentation was efficient it would do better in the market."
"Sometimes, when we execute tests, the results calculated by BlazeMeter, specifically the response times for failed transactions, are incorrect."
"The customer service is not available 24/7, which affects its rating. I would rate it as a seven because they respond once they are available."
"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."
"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."
 

Pricing and Cost Advice

"I rate the product's price two on a scale of one to ten, where one is very cheap, and ten is very expensive. The solution is not expensive."
"The solution is free and open source."
"We pay a yearly licensing fee for the solution."
"The overall product is less costly than our past solutions, so we've absolutely saved money."
"My company has opted for a pay-as-you-go model, so we don't make use of the free version of the product."
"The licensing fees are billed on a monthly basis and they cost approximately $100 for the basic plan."
"It is an averagely priced product."
"When compared with the cost of the licenses of other tools, BlazeMeter's license price is good."
"It doesn't really concern me. Licensing is on a yearly basis."
"The pricing is a little bit on the higher side, although it is really good."
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Top Industries

By visitors reading reviews
Financial Services Firm
11%
Outsourcing Company
11%
Comms Service Provider
9%
Manufacturing Company
6%
Construction Company
19%
Financial Services Firm
19%
Outsourcing Company
11%
Manufacturing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business18
Midsize Enterprise9
Large Enterprise23
No data available
 

Questions from the Community

How does BlazeMeter compare with Apache JMeter?
Blazemeter is a continuous testing platform that provides scriptless test automation. It unifies functional and performance testing, enabling users to monitor and test public and private APIs. We ...
What is your experience regarding pricing and costs for BlazeMeter?
Regarding pricing, it is favorable compared to other tools, providing good value. The licensing is flexible, with options for one or two-year terms based on user requirements, and BlazeMeter occasi...
What needs improvement with BlazeMeter?
BlazeMeter meets my needs very well, but an area for improvement would be the ability to execute multiple projects simultaneously. I often have several projects that require performance testing, an...
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Also Known As

JMeter Cloud
Rational Test Workbench, IBM Rational Performance Tester, IBM Functional Tester, IBM Rational Test Virtualization Server
 

Overview

 

Sample Customers

DIRECTV, GAP, MIT, NBCUniversal, Pfizer, StubHub
Financial Insurance Management Corp.
Find out what your peers are saying about BlazeMeter vs. IBM Rational Test Workbench and other solutions. Updated: September 2026.
913,806 professionals have used our research since 2012.