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CrossBrowserTesting vs k6 Open Source comparison

 

Comparison Buyer's Guide

Executive Summary

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
19
Ranking in other categories
Functional Testing Tools (29th)
k6 Open Source
Average Rating
7.6
Reviews Sentiment
7.9
Number of Reviews
2
Ranking in other categories
Load Testing Tools (10th), Regression Testing Tools (22nd)
 

Featured Reviews

CN
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.…
NalinGoonawardana - PeerSpot reviewer
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.

Quotes from Members

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

Pros

"Overall, the product does what we need and does it well."
"CrossBrowserTesting improved my organization because it eliminates the need for a physical device with a tester to cover our used browsers."
"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."
"CrossBrowserTesting allows us to test our site with real-world devices in real-world scenarios and find what we're missing."
"The ability to replay sessions is valuable for tracking down issues."
"Aside from speeding up our processes, it also allowed us to tie in our automated test scenarios and integrate our reporting tools to make the entire process efficient and hassle free."
"Video recording of the script running in a cloud server."
"Selenium Grid allows testing multiple platforms to insure functionality for most users."
"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

"This solution would benefit from faster testing and support for more devices."
"I had some problems with the local connection, but there is someone that can help us always on customer support chat."
"The speed connection in mobile devices could be improved, because sometimes the load time is uncertain."
"Sometimes the testing is slow."
"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 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."
"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."
"We had some issues with the onboarding process and the cloud conductivity could improve."
"One area where k6 could improve is by introducing a GUI similar to JMeter."
 

Pricing and Cost Advice

"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."
"A few intermediary pricing options for small QA teams would be nice, e.g., unlimited screenshots, "as you need it" parallel tests, etc."
"SmartBear offers bundles of products that work together."
"It is worth the pricing as the product is supported on multiple platforms and browsers."
"CrossBrowserTesting offered the best value for its price."
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Top Industries

By visitors reading reviews
Construction Company
15%
Financial Services Firm
10%
Comms Service Provider
9%
Transportation Company
6%
Computer Software Company
14%
Financial Services Firm
12%
Construction Company
9%
Retailer
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise5
Large Enterprise10
No data available
 

Also Known As

No data available
Load Impact
 

Overview

 

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
Find out what your peers are saying about Tricentis, Katalon Studio, OpenText and others in Regression Testing Tools. Updated: June 2026.
902,894 professionals have used our research since 2012.