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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
94
Ranking in other categories
API Testing Tools (1st)
ReadyAPI Performance
Ranking in Performance Testing Tools
10th
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 September 2025, in the Load Testing Tools category, the mindshare of Apache JMeter is 16.6%, down from 25.2% compared to the previous year. The mindshare of ReadyAPI Performance is 1.8%, up from 0.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Load Testing Tools Market Share Distribution
ProductMarket Share (%)
Apache JMeter16.6%
ReadyAPI Performance1.8%
Other81.6%
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

"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."
"The reporting features are really good. There's a lot less latency than other solutions."
"User-friendly and open source."
"It's very useful for performance and load testing."
"The performance of the solution is excellent."
"Due to process automation, I don't have to prepare reports, making it the perfect solution."
"We find the ease of use and the reports and graphs available valuable."
"The recording and playback functionality is helpful."
"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."
"We find the product to be scalable."
"he initial deployment process is easy."
"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."
"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."
"The performance and reporting of this solution have been its most valuable features."
"We can scale."
"It's like a centralized interface that allows us to increase the quality of our APIs."
 

Cons

"The installation needs some work. It could be simplified."
"The tool should be made a bit more robust, and better support should be made available."
"What needs improvement in Apache JMeter is the very high load requirements when you want to scale it beyond certain thresholds. For example, small to mid-range testing is very easily done with Apache JMeter, but if you scale and increase the load, then it would be a problem because the tool consumes a lot of resources, probably because Apache JMeter provides an enriched UI experience, so it consumes a lot of memory and requires high CPU usage. This means you have to manage your infrastructure, or else you'll have high overhead expenses. As Apache JMeter is a heavyweight tool, that is an area for improvement, though I'm unsure if Apache can do something about it because it could be a result of the way it's architected. What I'd like to see from Apache JMeter in the future is for it to transition to the cloud, as a lot of cloud technologies emerge around the globe, and a lot of people prefer cloud-based solutions or cloud-native tools. Even if a company has a legacy system, it's still possible to transition to the cloud. I've worked with a company that was an on-premise company that moved to the cloud and became cloud-native. If Apache JMeter could transition to the cloud, similar to k6, then it could help lessen the intense resource consumption that's currently happening in Apache JMeter."
"Currently, the integration pipeline is implemented by using Jenkins or a similar tool platform. These are continuous integration tools. As far as I know, integration is done by using custom scripts. It would be good if the integration with a continuous integration pipeline, like Jenkins or Hudson, can be done out of the box without using a script."
"JMeter should be more stable. Every time there is a new release coming up, a lot of its older functionalities or the new functionalities that are brought in are not very well-documented. It should be documented properly, and there should be proper use cases."
"At present, if the number of virtual users increases beyond 10,000 when testing, then it results in a Java heap which causes the solution to crash."
"Improving JMeter's sync time would be beneficial."
"If JMeter could provide a web version of editing, that would be good."
"The client-side scripting mostly isn't needed for performance testing, however, if implemented, it would enhance the tool."
"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."
"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."
"It is very slow sometimes."
"The solution’s interface could be improved."
"We need some time to understand and configure the solution."
"I'd not sure if they have the same level of documentation for performance and security testing."
 

Pricing and Cost Advice

"Apache JMeter is a free, open-source solution."
"Apache JMeter is a free tool."
"Everything is included, and there are no additional costs."
"The solution is open source with no user fees or licenses."
"The main reason we chose Apache JMeter is that it is cost-effective and easy to use. There is no need to pay for additional services. Additionally, it does not require additional payment to vendors. The solution is open-source and free."
"No licensing is required as it is a free, open-source tool."
"I switched to Apache because it is free. Other tools are much too expensive and can cost up to $50,000 a year if you are looking at commercial options."
"Apache JMeter is an open-source solution, so it's free to use."
"ReadyAPI Performance’s pricing is reasonable."
"We find the cost to be affordable."
"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."
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Top Industries

By visitors reading reviews
Financial Services Firm
19%
Computer Software Company
13%
Manufacturing Company
7%
Government
6%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business25
Midsize Enterprise24
Large Enterprise56
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 do you like most about ReadyAPI Performance?
It's like a centralized interface that allows us to increase the quality of our APIs.
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.
 

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.
867,349 professionals have used our research since 2012.