We performed a comparison between Apache JMeter and k6 Open Source based on real PeerSpot user reviews.
Find out what your peers are saying about Apache, Tricentis, OpenText and others in Load Testing Tools."The most valuable feature of this solution is being able to launch many requests and scheduling simulating human interactions with the application."
"JMeter's most valuable feature is the RegEx Extractor."
"The reports and analysis tools are very good. They are the solution's most valuable features."
"The product helps me get the expected performance from applications or servers and reduces costs. It also enhances the performance of the services and helped them reach their ultimate capacity."
"API testing, Database Testing, and MQ testing can be done with ease."
"The solution is free. You don't need to worry about licensing costs."
"It is scalable. You can scale up to 1,000 users in JMeter. If you can put up four slave servers, you can easily ramp up to 1,000 users."
"Scripting with the solution is good."
"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."
"The solution needs more metrics for reporting."
"The memory utilization in JMeter is very poor."
"The solution's setup could be easier and security could be improved to minimize vulnerabilities."
"One of the drawbacks of JMeter is that it can't handle a large amount of load, which forces us to switch to other tools when we need to load more than a 5,000 or 10,000 user load."
"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 UI could be better."
"If JMeter could provide a web version of editing, that would be good."
"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."
"One area where k6 could improve is by introducing a GUI similar to JMeter."
Apache JMeter is ranked 1st in Load Testing Tools with 82 reviews while k6 Open Source is ranked 17th in Load Testing Tools with 2 reviews. Apache JMeter is rated 7.8, while k6 Open Source is rated 7.6. The top reviewer of Apache JMeter writes "It's a free tool with a vast knowledge base, but the reporting is lackluster, and it has a steep learning curve". On the other hand, the top reviewer of k6 Open Source writes "Offers good scalability and has the ability to integrate with various systems and services". Apache JMeter is most compared with BlazeMeter, Postman, Tricentis NeoLoad, OpenText LoadRunner Professional and Akamai CloudTest, whereas k6 Open Source is most compared with Tricentis NeoLoad, BlazeMeter and RadView WebLOAD.
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We monitor all Load Testing Tools reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.
