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Apache JMeter vs ReadyAPI Performance comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jan 6, 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

Apache JMeter
Ranking in Performance Testing Tools
1st
Ranking in Load Testing Tools
1st
Average Rating
7.8
Reviews Sentiment
7.1
Number of Reviews
95
Ranking in other categories
API Testing Tools (2nd)
ReadyAPI Performance
Ranking in Performance Testing Tools
11th
Ranking in Load Testing Tools
11th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
8
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of October 2025, in the Load Testing Tools category, the mindshare of Apache JMeter is 16.2%, down from 24.3% compared to the previous year. The mindshare of ReadyAPI Performance is 2.3%, up from 1.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Load Testing Tools Market Share Distribution
ProductMarket Share (%)
Apache JMeter16.2%
ReadyAPI Performance2.3%
Other81.5%
Load Testing Tools
 

Featured Reviews

Shashidhara Allalappa - PeerSpot reviewer
Extensive Protocol Support and Precise Reporting Elevate Testing, Though GUI Usability Needs Improvement
The GUI of Apache JMeter is not that user-friendly because we have many proxies, and we have to record through the proxy. With the limited SSL we have, we cannot use it for UI, which is a drawback. However, Apache JMeter is really good for REST APIs. I don't think there are any other areas other than the GUI that I would want improved about Apache JMeter; it is generally good and supports multiple protocols.
Mahendra Andhale - PeerSpot reviewer
Open-source and flexible but needs client-side scripting
It's an open-source tool and supports a lot of plugins and custom code, which allows integration with other tools like Azure and AWS. Also, the APIs tested with SoapUI can be directly used, avoiding the need to create collections like in Postman. The client-side scripting, if incorporated, would provide a complete solution for performance tests. It can handle user distribution and transaction throughput distribution effectively.

Quotes from Members

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

Pros

"It is an open-source tool that is easy to use. It can be easily integrated with multiple tools, including Selenium."
"They can easily view the results and gain valuable insights."
"The thread groups, samplers, and listeners, which are all determined by the script's requirements, are the most valuable features of this solution."
"JMeter can be integrated with most open-source platforms like Grafana, Prometheus, or even with custom-made tools by extending it and integrating from GitHub."
"Scripting with the solution is good."
"Installation is hassle-free when we compare it with LoadRunner, and there are no additional components compared to the other tools."
"The most valuable features are the ability to capture the entire traffic of particular pages and the proper readability of entire pages and entire APIs."
"Apache JMeter is well-known and widely used among developers, particularly on popular developer forums. While it may not have the most user-friendly interface, it offers strong support through official manuals and various articles from companies providing load testing services. The tool is free, has a substantial community, and serves as a fundamental choice for testers, especially those new to performance testing. While other tools like K6 may be more developer-oriented, JMeter's affordability and accessibility make it suitable for those without extensive performance testing experience."
"We find the product to be scalable."
"We can scale."
"It's an open-source tool and supports a lot of plugins and custom code, which allows integration with other tools like Azure and AWS."
"It stores good reports, as in, improved reports if compared with the SoapUI. It also has in-built security. You just need to switch and check the security testing. My team has never used it, but I know ReadyAPI provides those facilities as well."
"It's like a centralized interface that allows us to increase the quality of our APIs."
"The performance and reporting of this solution have been its most valuable features."
"ReadyAPI automation can help us validate the functionality of most web services, allowing us to find out the exact number of defects before deployment to the user interface."
"he initial deployment process is easy."
 

Cons

"There are certain things like we can't merge custom metrics into the JMeter reports. We're limited to JMeter metrics, and other server metrics can't be integrated with JMeter dashboard. This forces us to rely on another tool."
"I sometimes found the documentation to be not as explanatory as I would've liked it. In the cases that I can think of, I was looking for a rather hand-holding approach with Step A, B, and C, but then I realized that with a product that is open source like this, you can't do handholding. That is because there are so many different uses and different unique environments and setups for it, but I remember thinking a few times that if they only just said this."
"The UI needs some work. The first time I used JMeter, I couldn't record the full scenario to mimic the user experience. Since then, they have introduced some plugins and a third-party tool called BlazeMeter."
"The plug-ins make the reports heavy and they have to be run in non-GUI mode."
"The initial setup is complex and needs to be upgraded."
"One area for improvement is the ability to decrease load suddenly during tests. Currently, we need to use multiple separate JMeter instances to simulate reductions in load, which isn't ideal."
"It's not easy to get the data from one place or to do customizations."
"Apache JMeter may have difficulty recognizing dynamic objects in some critical cases, which can lead to challenges in terms of object identification."
"It is very slow sometimes."
"I'd not sure if they have the same level of documentation for performance and security testing."
"We need some time to understand and configure the solution."
"This solution could be improved by offering artificial AI testing in addition to API testing. For example, we would like to have machine learning testing because when test applications, manual work could be completed automatically using this functionality."
"The client-side scripting mostly isn't needed for performance testing, however, if implemented, it would enhance the tool."
"The solution’s interface could be improved."
"I want the solution to be able to monitor Apache Kafka activity as well."
"This is an area for improvement with the tool. We unnecessarily use JMeter for some website testing, which we would like to avoid by introducing this tool for API and load testing because it provides load testing features."
 

Pricing and Cost Advice

"Apache JMeter is a free tool."
"When comparing the price with Load Runner, and if the cost is an issue then JMeter is a better choice"
"I was using the free version of the software."
"No licensing is required as it is a free, open-source tool."
"This is an open-source solution, so there are no licensing costs involved."
"We use the open source version."
"Since it's free, there's no need for extensive support or improvements in pricing."
"The price of Apache JMeter is good. The selling rate is quite effective and the limited users with a multi-region-related execution."
"ReadyAPI Performance’s pricing is reasonable."
"This solution operates on a licence basis and the usage and cost varies according to the use case. It is more expensive if you include access to the learning center. On average it costs approximately 800 Euros."
"We find the cost to be affordable."
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Top Industries

By visitors reading reviews
Financial Services Firm
18%
Computer Software Company
13%
Manufacturing Company
7%
Government
7%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business27
Midsize Enterprise24
Large Enterprise55
By reviewers
Company SizeCount
Small Business2
Midsize Enterprise1
Large Enterprise5
 

Questions from the Community

How does Postman compare with Apache JMeter?
Postman lets you easily define variables, which then get updated automatically. This is a huge time-saver and makes processes very efficient. We can also export the test cases we create and share t...
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 Apache JMeter?
I appreciate JMeter's simplicity and power for performance testing.
What is your experience regarding pricing and costs for ReadyAPI Performance?
Load UI is mostly free, and the pricing for the pro version is very affordable compared to other tools like LoadRunner.
What needs improvement with ReadyAPI Performance?
The client-side scripting mostly isn't needed for performance testing, however, if implemented, it would enhance the tool.
What is your primary use case for ReadyAPI Performance?
The primary use case is to conduct server-side performance tests, scalability tests, and endurance tests using SoapUI and Load UI.
 

Also Known As

JMeter
LoadUI NG Pro
 

Overview

 

Sample Customers

AOL, Orbitz, Innopath Software, PrepMe, Sapient, Corporate Express Australia, CSIRO, Ephibian, Talis, DATACOM, ALALOOP, eFusion, Panter, Sourcepole, University of Western Cape
Mercedes-Benz, Adobe, Hilton Hotels, The Home Depot
Find out what your peers are saying about Apache JMeter vs. ReadyAPI Performance and other solutions. Updated: September 2025.
872,706 professionals have used our research since 2012.