CrossBrowserTesting vs k6 Open Source comparison

SmartBear and k6 are both solutions in the Regression Testing Tools category. Additionally, 100% of SmartBear users are willing to recommend the solution, compared to 100% of k6 users who would recommend it.

CrossBrowserTesting

Read 19 CrossBrowserTesting reviews

529 Views
476 Comparison Views

100% willing to recommend

k6 Open Source

Read 2 k6 Open Source reviews

772 Views
108 Comparison Views

100% willing to recommend

CrossBrowserTesting

k6 Open Source

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Executive Summary

We performed a comparison between CrossBrowserTesting and k6 Open Source 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 CrossBrowserTesting vs. k6 Open Source Report (Updated: July 2025).

Buyer's Guide

CrossBrowserTesting vs. k6 Open Source

July 2025

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Helped 865,384 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

CrossBrowserTesting

Average Rating

9.0

Reviews Sentiment

7.6

Number of Reviews

Ranking in other categories

Functional Testing Tools (28th)

k6 Open Source

Average Rating

7.6

Reviews Sentiment

7.9

Number of Reviews

Ranking in other categories

Load Testing Tools (7th), Regression Testing Tools (10th)

Featured Reviews

CharlesNetshivhera

Senior DevOps Engineer at a financial services firm with 10,001+ employees

Knowledgeable support, scalable, and stable

We use CrossBrowserTesting for testing our web-based applications We had some issues with the onboarding process and the cloud conductivity could improve. I have used CrossBrowserTesting within the past 12 months. CrossBrowserTesting is stable. I have found CrossBrowserTesting to be scalable.…

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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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Quotes from Members

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

Pros

"When developing new pages that have questionable functionality or coding, we will often use CBT to test it in a browser. CBT works with our testing environment and development site."

"CBT has made it easier to troubleshoot issues across devices when we do not have actual access to those specific devices. I even opt for CBT sometimes when we do have access to the device just because it is easier."

"Each new session started with the live testing feature allows for a cleared browser and new experience to be able to not only see these attributes on the page clearly but also pass clean data."

"The ability to replay sessions is valuable for tracking down issues."

"I must acknowledge that the customer support has been A++ when I have run into problems."

"The support team is top-notch. I have a great relationship with them. They are extremely honest and responsive."

"The screen shot portal is essential for an easy way to run tests across hundreds of browsers and retrieve screenshots which then indicate success or failure."

"I have found CrossBrowserTesting to be scalable."

More CrossBrowserTesting pros

"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."

Cons

"A problem that we are facing quite often is related to the network connection. Tests can fail if the remote CrossBrowserTesting's VM has connection problems. This happens mostly with browsers of Internet Explorer family which work on Windows OS."

"I have experienced some lagging issues, and it does not seem like all of the testing environments are configured the same."

"It would be useful if we can run the live-testing test cases on multiple platforms at the same time, instead of waiting for one session to finish."

"The speed connection in mobile devices could be improved, because sometimes the load time is uncertain."

"A wider range of physical devices with more browser versions in the Selenium Grid would be great to insure users with out-of-date devices are able to interact with our sites."

"Elements of 'real' mobile/tablet testing could be sped up."

"Sometimes, some of their instances fail, particularly in older versions of browsers."

"The screenshot tool defaults to a screen layout instead of a full page test. I find it a bit cumbersome that I can't have it run a full screenshot as my default."

More CrossBrowserTesting cons

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

Pricing and Cost Advice

"A few intermediary pricing options for small QA teams would be nice, e.g., unlimited screenshots, "as you need it" parallel tests, etc."

"CrossBrowserTesting offered the best value for its price."

"It is worth the pricing as the product is supported on multiple platforms and browsers."

"SmartBear offers bundles of products that work together."

"The lowest price point is very reasonable. It is also useful if only one person in the company needs to check on the browser display."

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Top Industries

By visitors reading reviews

No data available

Computer Software Company

18%

Financial Services Firm

10%

Manufacturing Company

10%

Retailer

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

Questions from the Community

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What do you like most about k6 Open Source?

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

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What needs improvement with k6 Open Source?

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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

Comparisons

BrowserStack vs CrossBrowserTesting

Compared 63% of the time

Sauce Labs vs CrossBrowserTesting

Compared 14% of the time

Bitbar vs CrossBrowserTesting

Compared 12% of the time

Eggplant Test vs CrossBrowserTesting

Compared 12% of the time

More CrossBrowserTesting Competitors

Tricentis NeoLoad vs k6 Open Source

Compared 36% of the time

BlazeMeter vs k6 Open Source

Compared 15% of the time

Selenium HQ vs k6 Open Source

Compared 15% of the time

Apache JMeter 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

Product Reports

Buyer's Guide

CrossBrowserTesting

August 2025

Download CrossBrowserTesting product report

Buyer's Guide

Load Testing Tools

August 2025

Download k6 Open Source product report

Also Known As

No data available

Load Impact

Overview

CrossBrowserTesting is a cloud testing platform that gives instant access to 1500+ different real desktop and mobile browsers for testers, developers, and designers.

Native debugging tools make manual testing easy to inspect and correct HTML, CSS, and JavaScript errors on any browser.
Take automated screenshots across multiple browsers at once, then compare side-by-side against historical test runs.

SmartBear

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.

Sample Customers

St. Jude Children's Research Hospital, Accenture, Sony, Los Angeles Times, ADP, Verizon, T-Mobile, Wistia

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

Buyer's Guide

CrossBrowserTesting vs. k6 Open Source

July 2025

Free Report: CrossBrowserTesting vs. k6 Open Source

Find out what your peers are saying about CrossBrowserTesting vs. k6 Open Source and other solutions. Updated: July 2025.

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