Tricentis Tosca vs k6 Open Source comparison

k6 and Tricentis are both solutions in the Regression Testing Tools category. k6 is ranked #9 with an average rating of 8.0, while Tricentis is ranked #1 with an average rating of 8.1. k6 holds a 1.2% mindshare in RTT, compared to Tricentis’s 22.8% mindshare. Additionally, 100% of k6 users are willing to recommend the solution, compared to 96% of Tricentis users who would recommend it.

k6 Open Source

Read 2 k6 Open Source reviews

914 Views
155 Comparison Views

100% willing to recommend

Tricentis Tosca

Read 113 Tricentis Tosca reviews

18,670 Views
7,095 Comparison Views

96% willing to recommend

k6 Open Source

Tricentis Tosca

Comparison Buyer's Guide

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Executive SummaryUpdated on Nov 16, 2025

Tricentis Tosca and k6 Open Source are competitive products in the software testing domain. Tricentis Tosca seems to have an upper hand with its comprehensive test automation capabilities, while k6 Open Source stands out for scalable load testing efficiencies and open-source access.

Features: Tricentis Tosca provides advanced test automation, model-based test creation, and supports continuous testing across various platforms. It offers extensive automation features compared to k6 Open Source, which focuses more on performance testing. k6 Open Source allows efficient real-world traffic simulation and provides specialized tools for load testing scenarios.

Ease of Deployment and Customer Service: Tricentis Tosca is known for enterprise-level deployment and offers robust support and integration options. Its comprehensive support package contrasts with k6 Open Source's community-driven support. k6 Open Source is appreciated for its straightforward deployment process, lightweight design, and seamless cloud integration.

Pricing and ROI: Tricentis Tosca involves a higher setup cost due to its enterprise-grade features. However, it offers a high return on investment in complex testing scenarios. k6 Open Source, being open source, has minimal setup costs. It is notable for its cost-effective testing solutions, attracting users with lower initial costs and flexible testing capabilities.

To learn more, read our detailed Tricentis Tosca vs. k6 Open Source Report (Updated: December 2025).

Buyer's Guide

Tricentis Tosca 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 Regression Testing Tools

9th

Average Rating

7.6

Reviews Sentiment

7.9

Number of Reviews

Ranking in other categories

Load Testing Tools (7th)

Tricentis Tosca

Ranking in Regression Testing Tools

1st

Average Rating

8.2

Reviews Sentiment

6.7

Number of Reviews

113

Ranking in other categories

Service Virtualization (1st), Functional Testing Tools (1st), Mobile App Testing Tools (1st), API Testing Tools (3rd), Test Automation Tools (1st)

Mindshare comparison

As of January 2026, in the Regression Testing Tools category, the mindshare of k6 Open Source is 1.2%, up from 0.3% compared to the previous year. The mindshare of Tricentis Tosca is 22.8%, down from 28.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Regression Testing Tools Market Share Distribution
Product	Market Share (%)
Tricentis Tosca	22.8%
k6 Open Source	1.2%
Other	76.0%

Regression 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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reviewer2740515

Senior Software Engineer 2 at a tech services company with 51-200 employees

Automation test development becomes accessible and effective for functional testers

Tricentis Tosca is a codeless tool, making it easy for everyone to understand the transition of how to develop scenarios or test cases. In Tricentis Tosca, analyzing failures is straightforward because every time it fails somewhere, I get the screenshot, which helps me analyze how and why it failed. It has all the modules, including some pre-built ones that can be reused efficiently. Compared to other code tools such as Selenium, where I used to develop one script in one day, with Tricentis Tosca I can easily develop one script in four hours or three hours, saving four to five hours in a day.

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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."

"This solution is easy to use for everybody, including those who are not IT-educated."

"Multiple scanning engines to automate many different applications."

"I am impressed with the product's script test."

"The solution can be deployed in DevOps and ERP environments like Oracle Fusion. It accelerates testing with the libraries. The product incorporates libraries and is more sensitive to the scans."

"Compared to other tools we have been looking at, you don't have to be a programmer to operate it, though it helps. It also a product that can be used by business people."

"The most valuable features of Tricentis Tosca are all the test automation functionality. It is a full-scale automation tool."

"The most valuable features of Tricentis Tosca are the ease of use, you do not need to program if you do not want to."

"With one click, it will scan all the elements on the screen, so that the user can select the required elements for automation tests."

More Tricentis Tosca pros

Cons

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

"It requires some coding customization that requires expertise."

"Security, UI, and basic performance improvements could be done to the product to enhance its use."

"In terms of areas for improvement, Tricentis has a variety of tools, even its test management tool called qTest. Tricentis Tosca does have integration with different Tricentis tools, but the integration is geared towards a larger organization perspective. For very small organizations that have minimal licenses, the integration needs to be improvised. For example, I belong to a smaller organization that has only one license, so the capability that the tool provides for integration isn't sufficient because my company needs to have separate workspaces. When Tricentis Tosca is going to be running, it is going to use that license, but my company wants another separate workspace to record, relay, and test. This is what my team has been struggling with, and the mechanism is probably there, but that needs more time and investigation, so I can't say that I'm one hundred percent certain that Tricentis Tosca, in terms of integration for a smaller organization is insufficient. Another area for improvement is that Tricentis Tosca is currently just a Windows-based tool which affects the market because nowadays, Windows isn't the only operating system, for example, there's also Apple or IOS that's moving much faster than Windows."

"It would be of great help if they can fix the loading or performance issues. Sometimes, when I create the test case folder and test cases, it feels like it has loading or performance issues. When passing the objects, we can't sometimes find the exact element. We need to find out that exact location and just give the path for that, and then it works. In the pipeline, when creating Jenkins, we create the list execution for passing the execution list to the commander. I feel it is a bit late, by a fraction of seconds. I first thought it could be my mistake or a setting issue, but I worked on that, and it's not a mistake or a setting issue."

"We faced some hardships in implementing the solution because of integration."

"The solution needs to improve its simulation of mobile environments. Right now, that aspect is really lacking."

"The technical support services are generally good, though there are areas for improvement regarding response time and overall competence."

"The issue is that even though the components are tightly integrated, object identification can be quite slow, sometimes taking five to ten seconds."

More Tricentis Tosca cons

Pricing and Cost Advice

Information not available

"If you are purchasing less than five licenses, then the pricing is high. On a scale from one to ten, with one being low and ten being high pricing, I would rate this solution at eight."

"The pricing and licensing of Tricentis Tosca were alright. Many customers look for end-to-end enterprise solutions, there were not many challenges with the pricing. However, the customers who are coming from Selenium or similar, feel they're paying a premium for this Tricentis Tosca license. If the right person is there for the implementation of the Tricentis Tosca, then it is one of the best tools in the market."

"The tool is quite expensive."

"Although the product is slightly more expensive than tools, its automation capabilities and reduced scripting needs justify the cost."

"Pricing for Tricentis Tosca could be improved because it's very expensive."

"Tricentis Tosca is an expensive solution and there is an annual license required. The whole licensing process is confusing and it could be made easier."

"In terms of the licensing costs for Tricentis Tosca, we are spending more or less $70,000 per year. We have a very complex mechanism because there are some business users and some BI users, so the licensing structure is not simple, but support is included."

"On a scale of one to ten, where one is very cheap and ten is very expensive, I rate the pricing a ten. The licensing model is based on a yearly basis."

More Tricentis Tosca pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

15%

Financial Services Firm

10%

Media Company

Retailer

Manufacturing Company

13%

Financial Services Firm

12%

Computer Software Company

12%

Retailer

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

By reviewers
Company Size	Count
Small Business	23
Midsize Enterprise	24
Large Enterprise	72

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.

See all answers

How does Micro Focus UFT One compare to Tricentis Tosca?

We reviewed MicroFocus UFT One but ultimately chose to use Tricentis Tosca because we needed API testing. MicroFocus UFT is a performance and functional testing tool. We tested it, and it was well...

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How does Tricentis Tosca compare with Worksoft Certify?

Tosca fulfills our business needs better because it is an end-to-end solution across technologies. We like that it is scriptless, so even non-experienced staff can use it. To put it simply, with To...

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What do you like most about Tricentis Tosca?

For beginners, the product is good, especially for those who are interested in the quality side of software testing.

See all answers

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OpenText Enterprise Performance Engineering (LoadRunner Enterprise) vs k6 Open Source

Compared 8% of the time

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Compared 8% of the time

OpenText Functional Testing vs Tricentis Tosca

Compared 7% of the time

Katalon Studio vs Tricentis Tosca

Compared 6% of the time

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Compared 6% of the time

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Product Reports

Buyer's Guide

Load Testing Tools

January 2026

Download k6 Open Source product report

Buyer's Guide

Tricentis Tosca

January 2026

Download Tricentis Tosca product report

Also Known As

Load Impact

Orchestrated Service Virtualization

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.

Tricentis Tosca offers model-based testing that supports both technical and non-technical users through a user-friendly interface, enabling scriptless automation and seamless integration with UI and non-UI applications.

Tosca's modular approach enhances test maintenance and reuse while delivering comprehensive automation for diverse testing environments. Backed by risk-based testing and automated data management, it supports end-to-end testing across API, SAP, and desktop applications. Tosca's integration capabilities extend to environments like Salesforce, PHP webshops, and mobile apps, effectively enhancing Agile team workflows. Despite its strengths, room remains for improved reporting, object recognition, and more efficient upgrade processes. Enhancing documentation and mobile testing support could further elevate its functionality for many.

What key features does Tricentis Tosca offer?

User-friendly interface: Simplifies interactions for non-technical users.
Model-based testing: Facilitates the easy creation of automated test cases.
Scriptless automation: Enables quick test development without coding.
Integration capabilities: Supports connections with multiple platforms like SAP and Salesforce.
Modular approach: Enhances the reuse and maintenance of test components.

What benefits to expect from Tricentis Tosca?

Efficiency: Streamlines the testing process for faster release cycles.
Versatility: Suitable for diverse application environments including web and desktop.
Productivity: Boosts Agile team integration for comprehensive testing.
Risk-based testing: Prioritizes testing efforts based on potential impact.

In retail, Tricentis Tosca automates inventory and transaction testing, ensuring efficient system updates. Financial services employ it for regulatory compliance through automated test scenarios in mainframe and PDF environments. Telecommunication companies utilize Tosca for API testing, aligning services across network platforms seamlessly.

Tricentis

Sample Customers

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

HBO, AMEX, BMW Group, ING, Bosch, Austrian Airlines, Deutsche Bank, Henkel, Allianz, Bank of America, UBS, Orange, Siemens, Swiss Re, Vodafone

Buyer's Guide

Tricentis Tosca vs. k6 Open Source

December 2025

Free Report: Tricentis Tosca vs. k6 Open Source

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