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BlazeMeter vs IBM Rational Test Workbench comparison

 

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
3rd
Ranking in API Testing Tools
8th
Ranking in Test Automation Tools
7th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
50
Ranking in other categories
Functional Testing Tools (9th), Load Testing Tools (3rd)
IBM Rational Test Workbench
Ranking in Performance Testing Tools
19th
Ranking in API Testing Tools
15th
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 March 2026, in the Performance Testing Tools category, the mindshare of BlazeMeter is 6.6%, down from 14.7% compared to the previous year. The mindshare of IBM Rational Test Workbench is 2.1%, up from 0.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Performance Testing Tools Mindshare Distribution
ProductMindshare (%)
BlazeMeter6.6%
IBM Rational Test Workbench2.1%
Other91.3%
Performance Testing Tools
 

Featured Reviews

NP
Software 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 extensibility that the tool offers across environments and teams is valuable."
"We took from January to July using BlazeMeter to really model out what the traffic looked like in previous years and to be able to handle the load when November came and it went through just fine without a glitch."
"BlazeMeter support and flexibility is also hugely valuable."
"We found it met our requirements and more, helping us gain confidence from our customers and solve a nagging problem in the performance of a third-party application."
"BlazeMeter has allowed us to simplify and speed up our load testing process."
"The user interface is good."
"It's a great platform because it's a SaaS solution, but it also builds the on-premises hosting solutions, so we have implemented a hybrid approach. BlazeMeter sets us up for our traditional hosting platforms and application stack as well as the modern cloud-based or SaaS-based application technologies."
"BlazeMeter's most valuable feature is its cloud-based platform for performance testing."
"Reporting is pretty good. Its interface is also good. I'm overall pretty happy with the functionality and use of IBM Rational Test Workbench."
"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."
"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."
 

Cons

"The seamless integration with mobiles could be improved."
"Sometimes, when we execute tests, the results calculated by BlazeMeter, specifically the response times for failed transactions, are incorrect."
"BlazeMeter has room for improvement in terms of its integration with GitLab, particularly in the context of CI/CD processes. While it has multiple integrations available, the level of integration with GitLab may need further enhancements. It is known to work well with Git and Jenkins, although the extent of compatibility with GitLab is uncertain."
"I don't think I can generate a JMX file unless I run JMeter, which is one of my concerns when it comes to BlazeMeter."
"In terms of improvement, I would like to have the ability to customize reports."
"The only downside of BlazeMeter is that it is a bit expensive."
"The support could be better."
"The reporting capabilities could be improved."
"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."
"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."
"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."
 

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 licensing fees are billed on a monthly basis and they cost approximately $100 for the basic plan."
"I would rate the pricing a three out of ten, where one is very cheap, and ten is very expensive."
"The pricing is manageable. It is not that big. Big companies won't mind the licensing costs."
"It is an averagely priced product."
"The overall product is less costly than our past solutions, so we've absolutely saved money."
"We pay a yearly licensing fee for the solution."
"The product isn't cheap, but it isn't the most expensive on the market. During our proof of concept, we discovered that you get what you pay for; we found a cheaper solution we tested to be full of bugs. Therefore, we are willing to pay the higher price tag for the quality BlazeMeter offers."
"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
15%
Computer Software Company
10%
Manufacturing Company
6%
Comms Service Provider
6%
Financial Services Firm
28%
Manufacturing Company
13%
Non Profit
8%
University
7%
 

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 do you like most about BlazeMeter?
It has a unique programming dashboard that is very user-friendly.
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...
Ask a question
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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: March 2026.
884,873 professionals have used our research since 2012.