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RadView WebLOAD vs k6 Open Source 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

k6 Open Source
Ranking in Load Testing Tools
7th
Average Rating
7.6
Reviews Sentiment
7.9
Number of Reviews
2
Ranking in other categories
Regression Testing Tools (9th)
RadView WebLOAD
Ranking in Load Testing Tools
13th
Average Rating
8.2
Reviews Sentiment
7.3
Number of Reviews
9
Ranking in other categories
Performance Testing Tools (12th)
 

Mindshare comparison

As of March 2026, in the Load Testing Tools category, the mindshare of k6 Open Source is 4.4%, up from 3.3% compared to the previous year. The mindshare of RadView WebLOAD is 3.2%, up from 1.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Load Testing Tools Mindshare Distribution
ProductMindshare (%)
k6 Open Source4.4%
RadView WebLOAD3.2%
Other92.4%
Load Testing Tools
 

Featured Reviews

ArtemCheremisin - PeerSpot reviewer
Performance Test Engineer at BETBY
Lighter on the RAM and has native Grafana support
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. Recently, I had a case where I was using another tool, and there wasn't enough memory for it because it required more RAM. k6 Open Source, on the other hand, is lighter and doesn't have a UI, which is beneficial. An engineer I was training could use k6 Open Source scripts even without my help. The tool is more efficient and has native support with Grafana, as both are developed by the same company. This integration enhances monitoring and loss ratio tracking. Thanks to its intelligent GUI, k6 Open Source's design is simpler, particularly for complex scenarios. When we need to manage hundreds of thousands or millions of transactions per minute, the solution becomes a game-changer compared to JMeter.
it_user1265766 - PeerSpot reviewer
Test Team Lead at Medtronic, Inc.
IDE is simple and it's quick to complete the process but the reporting is complicated
You pay for the number of users that you're going to be utilizing. In order to scale up, you would have to pay for additional users, but for our use case, we're able to scale fairly easily. We have a license for 500, but we're using half of that for our initial workflow. For maintenance, as far as I'm aware, there's only one person really working on the maintenance of it and we only really have one user consistently using the software. He's a QA person. We don't have any plans to increase our usage. Even though we've had it for a while, we have a major push to start utilizing it more. I imagine we'll probably be using it and utilizing it across our QA team in the next year. We're in the process of determining whether we're going to keep it or not due to the fact that it is so expensive. That's why I've been researching alternatives for the RadView.

Quotes from Members

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

Pros

"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 standout feature of k6 is its strong focus on API performance testing."
"The solution is simple and useful."
"The most valuable feature of this solution is reporting."
"The analytics pack is probably one of the most powerful tools that I've seen."
"They are the best of all of the vendors I deal with, hands down."
"Customer service is excellent; they're very responsive and willing to work extra hours, and in the first couple of hours that we were up and running, they taught us how to implement it and to figure out and negotiate AWS."
"The most valuable aspect is that the IDE is simple and it's quick to complete the process."
"Technical support has been excellent, responsive, and helpful in trying to work through issues and questions."
"The tool itself is very viable for us."
 

Cons

"One area where k6 could improve is by introducing a GUI similar to JMeter."
"They can improve in the reporting - the ability to generate custom reports."
"The reporting side of things is really complicated. It's difficult to get out exactly what you're looking for, there are almost too many options."
"It would be great, in addition to the load tool, it would be nice, if Radview offered a JavaScript based functional test tool as well."
"When it finds a problem with response times, it doesn't specify exactly where the problem actually is."
"Well there’s one issue when I have five or six scripts-- you have to set up different percentages and the number of connections and users, no matter how I tweak it seems that when I have one of the load scripts in the mix set, a percentage of less than 8-10%, there’s a probability that it won’t run at all."
"We did have an issue with some of the script working incorrectly in our higher environments."
"Technical support is slow and wastes a lot of time, so it needs to be improved."
"I would like to be able to edit a scenario instead of re-recording a scenario."
 

Pricing and Cost Advice

Information not available
"It costs $8,600 yearly and we have the Cloud, which is an additional $800. Our perpetual license is $800 and then the Cloud functionality with our 500 users is the $8,600."
"We purchased a license for two years."
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Financial Services Firm
10%
Outsourcing Company
8%
Manufacturing Company
8%
Performing Arts
14%
Government
13%
Computer Software Company
12%
Comms Service Provider
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business2
Large Enterprise10
 

Questions from the Community

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Also Known As

Load Impact
No data available
 

Overview

 

Sample Customers

rackspace, salesforce.com, IBM, servicenow, Nasdaq, JWT
GoDaddy, Praxair, DeVry University and the College Board.
Find out what your peers are saying about RadView WebLOAD vs. k6 Open Source and other solutions. Updated: March 2026.
884,873 professionals have used our research since 2012.