Telerik Test Studio vs k6 Open Source comparison

k6 and Progress Software are both solutions in the Load Testing Tools category. k6 is ranked #7 with an average rating of 8.0, while Progress Software is ranked #15. k6 holds a 4.5% mindshare in LTT, compared to Progress Software’s 1.7% mindshare. Additionally, 100% of k6 users are willing to recommend the solution, compared to 100% of Progress Software users who would recommend it.

k6 Open Source

Read 2 k6 Open Source reviews

859 Views
661 Comparison Views

100% willing to recommend

Telerik Test Studio

Read 5 Telerik Test Studio reviews

1,142 Views
183 Comparison Views

100% willing to recommend

k6 Open Source

Telerik Test Studio

Comparison Buyer's Guide

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Executive SummaryUpdated on Jan 6, 2025

k6 Open Source and Telerik Test Studio are performance testing solutions. k6 Open Source has an edge in cost-efficiency and flexibility, while Telerik Test Studio offers a more comprehensive feature set appealing to enterprises.

Features: k6 Open Source is noted for its JavaScript scripting capabilities, cloud execution support, and seamless integration with development workflows. Telerik Test Studio is distinguished by its codeless test automation, allowing users with limited programming skills to create complex tests, integration with CI/CD pipelines, and a vast array of testing features.

Ease of Deployment and Customer Service: k6 Open Source is recognized for its straightforward deployment, particularly in cloud environments, and community support, although it lacks personalized service. Telerik Test Studio provides a structured deployment model with extensive customer service options, including dedicated support and training resources.

Pricing and ROI: k6 Open Source offers low setup costs and a strong ROI due to its open-source model. Telerik Test Studio requires a higher initial investment but delivers substantial ROI through enhanced features, reducing manual testing efforts and improving efficiency.

To learn more, read our detailed Telerik Test Studio vs. k6 Open Source Report (Updated: December 2025).

Buyer's Guide

Telerik Test Studio vs. k6 Open Source

December 2025

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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

Ranking in Regression Testing Tools

9th

Average Rating

7.6

Reviews Sentiment

7.9

Number of Reviews

Ranking in other categories

No ranking in other categories

Telerik Test Studio

Ranking in Load Testing Tools

15th

Ranking in Regression Testing Tools

12th

Average Rating

8.0

Reviews Sentiment

6.7

Number of Reviews

Ranking in other categories

Functional Testing Tools (25th), Test Automation Tools (26th)

Mindshare comparison

As of December 2025, in the Load Testing Tools category, the mindshare of k6 Open Source is 4.5%, up from 2.9% compared to the previous year. The mindshare of Telerik Test Studio is 1.7%, up from 0.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Load Testing Tools Market Share Distribution
Product	Market Share (%)
k6 Open Source	4.5%
Telerik Test Studio	1.7%
Other	93.8%

Load Testing Tools

Featured Reviews

ArtemCheremisin

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.

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Raghvendra Jyothi

Manager Project Management at Capgemini

Very good performance and load testing capabilities

There are some compatibility issues with the load standpoint test. When we use the solution instead of Microsoft Edge, more scripting is required. The reports for structure point or test management could be more compatible with other tools. For example, when I create an application I sometimes cannot generate a report.

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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."

"Before using Telerik Test Studio, I was a manual tester, so it was my first automation tool, yet I felt very comfortable using it. I've used the record and play feature, and Telerik Test Studio was easy to use. The tool was easy to understand, even for a first-time user like me."

"The most valuable aspects of the solution are the font, size, and interface."

"The way it identifies elements is good."

"The performance and load testing are very good."

"Has a very smooth process for launching and closing the application after execution."

Cons

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

"Its UI is not very user-friendly and could be improved. For new users, it isn't easy."

"There are some compatibility issues with the load standpoint test."

"It can be improved by including a feature that allows multiple file types to be selected simultaneously."

"I observed that the Excel and Word validation was quite challenging, which is an area for improvement in the tool. I also experienced minor difficulties with Telerik Test Studio, particularly in fetching elements in some scenarios when using C# for coding."

"The charts need to be more detailed and customizable."

Pricing and Cost Advice

Information not available

"The pricing is fair so I rate it an eight out of ten."

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Top Industries

By visitors reading reviews

Computer Software Company

16%

Financial Services Firm

10%

Manufacturing Company

Media Company

Computer Software Company

19%

Manufacturing Company

17%

Financial Services Firm

10%

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

Questions from the Community

What advice do you have for others considering k6 Open Source?

I rate the overall solution an eight out of ten.

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Compared 9% of the time

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Compared 5% of the time

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Compared 10% of the time

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Product Reports

Buyer's Guide

Load Testing Tools

November 2025

Download k6 Open Source product report

Buyer's Guide

Functional Testing Tools

December 2025

Download Telerik Test Studio product report

Also Known As

Load Impact

No data available

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.

Telerik Test Studio is an innovative and easy-to-use automated web, WPF and load testing solution. Test Studio tests support essential technologies like ASP.NET AJAX, Silverlight, PHP and MVC. Test Studio functional testing is a comprehensive yet cost-effective automated testing suite. Users can complete tasks quickly and easily with the product's point-and-click interface, which is augmented by Telerik-exclusive features like a visual storyboard and 3D element selection. Test Studio also offers script-less test automation for Silverlight applications. Test Studio load tests allow users to capture quickly capture, multiply and replay complex web traffic. Record HTTP traffic from desktop browsers, mobile devices and web services, and replay traffic with hundreds or thousands of virtual users spread across multiple machines. Fine-tune your load scenario with data binding, user authentication, and dynamic targets. Test Studio Mobile is an intuitive and easy to use test automation solution for Mobile application testing. Create tests once and test across multiple devices and OS's. The point and click functionality allows users to capture quickly and replay complex mobile testing functionality. There is no need to write a single line of code. Test against any number of real devices as you wish or through an emulator by connecting through Wifi. Test Studio for APIs helps customers verify the integrity and reliability of their APIs in an easy way and incorporate their API testing effort in their continuous testing and delivery process. Test Studio for APIs is used to determine whether APIs return the correct response for a broad range of commonly accepted requests, react properly to edge cases such as failures and unexpected inputs, as well as deliver the responses in an acceptable amount of time.

Progress Software

Sample Customers

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

Fox, Chicco, BNP Paribas, eBay, Coca Cola, AT&T

Buyer's Guide

Telerik Test Studio vs. k6 Open Source

December 2025

Free Report: Telerik Test Studio vs. k6 Open Source

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