ReadyAPI Test vs k6 Open Source comparison

k6 and SmartBear are both solutions in the Regression Testing Tools category. k6 is ranked #10 with an average rating of 7.5, while SmartBear is ranked #9 with an average rating of 7.3. k6 holds a 0.4% mindshare in RTT, compared to SmartBear’s 0.6% mindshare. Additionally, 100% of k6 users are willing to recommend the solution, compared to 93% of SmartBear users who would recommend it.

k6 Open Source

Read 2 k6 Open Source reviews

72 Views
53 Comparison Views

100% willing to recommend

ReadyAPI Test

Read 31 ReadyAPI Test reviews

180 Views
157 Comparison Views

93% willing to recommend

k6 Open Source

ReadyAPI Test

Comparison Buyer's Guide

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Executive Summary

We performed a comparison between k6 Open Source and ReadyAPI Test based on real PeerSpot user reviews.

Find out in this report how the two Regression Testing Tools solutions compare in terms of features, pricing, service and support, easy of deployment, and ROI.

To learn more, read our detailed ReadyAPI Test vs. k6 Open Source Report (Updated: April 2025).

Buyer's Guide

ReadyAPI Test vs. k6 Open Source

April 2025

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Helped 850,028 peers since 2012

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 Regression Testing Tools

10th

Average Rating

7.6

Reviews Sentiment

7.9

Number of Reviews

Ranking in other categories

Load Testing Tools (9th)

ReadyAPI Test

Ranking in Regression Testing Tools

9th

Average Rating

8.0

Reviews Sentiment

7.0

Number of Reviews

Ranking in other categories

Functional Testing Tools (21st), API Testing Tools (10th)

Mindshare comparison

As of May 2025, in the Regression Testing Tools category, the mindshare of k6 Open Source is 0.4%, up from 0.1% compared to the previous year. The mindshare of ReadyAPI Test is 0.6%, down from 0.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Regression Testing Tools

Featured Reviews

NalinGoonawardana

Principal Consultant ( Test automation - Performance testing) at TTC Global (TTC) at TTC at a tech services company with 51-200 employees

Offers good scalability and has the ability to integrate with various systems and services

One area where k6 could improve is by introducing a GUI similar to JMeter. While k6 is a powerful tool for performance testing, it leans heavily towards coding. Having a GUI, even if it is a low-code approach, could make it more accessible to a broader audience. It would be beneficial to strike a balance where basic tasks can be performed graphically through a user-friendly interface, while still allowing the flexibility for more complex operations through code, similar to how JMeter operates. This could enhance the user experience and make k6 more approachable for those who may not be as comfortable with scripting.

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Faiz Ahmed

Test Automation Specialist / Lead at Tata Consultancy Services

You can achieve any complex task with this tool

There aren't any plugins for UI automation. You need to make a custom code and download a job to put into the libraries. If it were panelized, then it would be straightforward. It should be in a panel of the tools, so you can add those tools as your test step in your test cases. For example, it would be nice to have a Selenium plugin available from the menu, where I can select "open browser" and provide the URL. That URL would be immediately open in the browser. This is like a keyword, and then the Selenium plugin should be there.

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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."

"It clearly makes it easy to test APIs based on the SOAP protocol. We are a logistics company, and we have lots of tracking calls coming in. We provide APIs for tracking services, and it makes sense for us to use SoapUI to test them thoroughly."

"It's a very simple solution to use."

"The product allows us to uncover any potential issues early on."

"SoapUI is uncomplicated and user-friendly."

"The most valuable features are that it is user-friendly, it's easy to use and easy to teach to others."

"The solution offers excellent integration capabilities."

"One good feature is SoapUI's URL check, which allows you to check among the applications. I'm not just talking about the ones for Android. It has all kinds of multi-world tests that are really helpful."

"The solution has some good scanning features."

Cons

"One area where k6 could improve is by introducing a GUI similar to JMeter."

"Occasionally, when you are saving, the solution can hang."

"SoapUI would benefit from some more customization abilities. It's a good interface, but it would be nice if they added the ability to build custom dashboards where the user can do their own bar graphs and pie charts."

"Could integrate the graphing module for load testing."

"SoapUI Pro could improve by having dashboards."

"The UI should be improved."

"There are no bugs or glitches, but a few features available only in the Pro version could be made available in the open-source version. Some of the features do not necessarily need to be only available to Pro users. The data generator would be really useful for the open-source version users."

"There aren't any plugins for UI automation. You need to make a custom code and download a job to put into the libraries. If it were panelized, then it would be straightforward. It should be in a panel of the tools, so you can add those tools as your test step in your test cases."

"Grouping of the cases is not possible in SoapUI, to my knowledge. When working with critical cases or the, we were not able to group them properly. We can definitely create a suite and add them there, but within a whole suite, we have to identify them, which was not easy."

Pricing and Cost Advice

Information not available

"The Pro version can be expensive for some companies. There are no costs in addition to the licensing fees."

"ReadyAPI Test is about $680 per user, per year."

"It is free of charge."

"SoapUI Pro is open source but it has a subscription-based model which involves some more features. At the moment we are using the free version. The Pro version requires a license, and it is an annual license to use it."

"My understanding is that the pricing is okay, however, that's taken care of by our procurement team. It's around $5,000 for three years."

"The cost is not that bad."

"We have team members who are working in shifts, and it is not possible for us to utilize a single license on a single piece of hardware so that multiple team members can use it. We have to take out multiple licenses for each team member."

"ReadyAPI Test is expensive, and I rate its pricing a four out of ten."

More ReadyAPI Test pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

21%

Financial Services Firm

11%

Manufacturing Company

10%

Media Company

Financial Services Firm

25%

Computer Software Company

14%

Insurance Company

11%

Manufacturing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

Questions from the Community

What do you like most about k6 Open Source?

The standout feature of k6 is its strong focus on API performance testing.

See all answers

What needs improvement with k6 Open Source?

See all answers

What is your primary use case for k6 Open Source?

k6 Open Source is a powerful tool, especially for API-level performance testing. Its integration capabilities and ease of use make it promising for a wider audience.

See all answers

What do you like most about SoapUI Pro?

The product allows us to uncover any potential issues early on.

See all answers

What is your experience regarding pricing and costs for SoapUI Pro?

ReadyAPI Test is expensive, and I rate its pricing a four out of ten.

See all answers

What needs improvement with SoapUI Pro?

ReadyAPI Test needs to improve its reporting. While reports provide essential information when issues arise, or tests fail, having more graphical representations directly within the reports would b...

See all answers

Comparisons

Tricentis NeoLoad vs k6 Open Source

Compared 52% of the time

Apache JMeter vs k6 Open Source

Compared 14% of the time

BlazeMeter vs k6 Open Source

Compared 14% of the time

Selenium HQ vs k6 Open Source

Compared 12% of the time

Oracle Application Testing Suite vs k6 Open Source

Compared 8% of the time

More k6 Open Source Competitors

Postman vs ReadyAPI Test

Compared 73% of the time

Broadcom Service Virtualization vs ReadyAPI Test

Compared 10% of the time

ReadyAPI vs ReadyAPI Test

Compared 5% of the time

Parasoft SOAtest vs ReadyAPI Test

Compared 4% of the time

IBM Rational Test Workbench vs ReadyAPI Test

Compared 4% of the time

Product Reports

Buyer's Guide

Load Testing Tools

March 2025

Download k6 Open Source product report

Buyer's Guide

ReadyAPI Test

April 2025

Download ReadyAPI Test product report

Also Known As

Load Impact

SoapUI NG Pro

Overview

Load Impact offers three main features:

Automated testing - Integrates into your CD pipeline with CI plug-ins or opt for full control with API/SDKs.
API testing - a powerful scripting environment where you can create as simple or complex API scenarios as you need.
Web & web app testing - easily load test your website or web app. Record user scenarios using our Chrome extension or proxy recorder and configure a test with just a few clicks - no programming required.

For REST, SOAP and other popular API and IoT protocols, SoapUI NG Pro provides the industry's most comprehensive and easy-to-learn functional testing capabilities. Based on open core technology proven by millions of community members, SoapUI NG Pro helps you ensure that your APIs perform as intended, meet your business requirements, timeframes, and team skill sets right from day one.

SmartBear

Sample Customers

rackspace, salesforce.com, IBM, servicenow, Nasdaq, JWT

Apple, Cisco, FedEx, eBay, Microsoft, MasterCard, Pfizer, Nike, Oracle, Volvo, Lufthansa, Disney, HP, Intel, U.S. Air Force, Schindler

Buyer's Guide

ReadyAPI Test vs. k6 Open Source

April 2025

Free Report: ReadyAPI Test vs. k6 Open Source

Find out what your peers are saying about ReadyAPI Test vs. k6 Open Source and other solutions. Updated: April 2025.

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