Tricentis Tosca vs k6 Open Source comparison

k6 and Tricentis are both solutions in the Regression Testing Tools category. k6 is ranked #10 with an average rating of 7.5, while Tricentis is ranked #1 with an average rating of 8.1. k6 holds a 0.7% mindshare in RTT, compared to Tricentis’s 27.4% 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

772 Views
108 Comparison Views

100% willing to recommend

Tricentis Tosca

Read 112 Tricentis Tosca reviews

22,598 Views
8,813 Comparison Views

96% willing to recommend

k6 Open Source

Tricentis Tosca

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Executive SummaryUpdated on Aug 14, 2025

Tricentis Tosca and k6 Open Source are competitive products in software testing and load testing. Tricentis Tosca seems to have the upper hand in comprehensive support, whereas k6 Open Source is favored for its flexibility.

Features: Tricentis Tosca offers extensive test automation capabilities, seamless integration with various testing environments, and focuses on end-to-end testing solutions. k6 Open Source features a lean, scriptable interface for flexibility, high customization, and emphasizes lightweight, scalable load testing.

Ease of Deployment and Customer Service: Tricentis Tosca provides a deployable enterprise solution with robust customer support, appealing to organizations requiring swift implementation. k6 Open Source's deployment is straightforward for developers proficient in scripting but lacks the same level of direct customer service.

Pricing and ROI: Tricentis Tosca involves higher initial setup costs but offers high ROI through comprehensive features and support. k6 Open Source is free from upfront costs, making it attractive for budget-focused teams, though additional costs may arise for supplementary features.

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

Buyer's Guide

Tricentis Tosca vs. k6 Open Source

July 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

10th

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

112

Ranking in other categories

Service Virtualization (1st), Functional Testing Tools (1st), Mobile App Testing Tools (1st), API Testing Tools (2nd), Test Automation Tools (1st)

Mindshare comparison

As of August 2025, in the Regression Testing Tools category, the mindshare of k6 Open Source is 0.7%, up from 0.2% compared to the previous year. The mindshare of Tricentis Tosca is 27.4%, up from 27.2% 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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PrabhuKrishnamoorthy

Senior Director at Ascendion

Has transformed testing by reducing scripting effort and enhancing productivity with advanced features

The self-healing feature of Tricentis Tosca needs significant improvement. Currently, it is static and not dynamic. For example, if a button in an application changes, Tricentis Tosca should be smart enough to detect the change and still execute the script seamlessly. Improvements are needed to ensure it responds dynamically to changes in the application.

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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."

"The product's initial setup phase was easy."

"We have multiple applications, and it supports parallel execution. It has mobile automation."

"The initial setup isn't too difficult."

"It offers many features, such as risk-based testing and scenario creation using Kafka."

"What I find valuable is that Tricentis is always refining the test methodology. They listen to feedback from the analysts about what the testing tool should do, and then Tricentis always implements it. So all the necessary testing functions are already implemented in their tools."

"The solution has plenty of features compared to other solutions."

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

"It can provide all levels of testing from design to execution to reporting."

More Tricentis Tosca pros

Cons

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

"They need to improve on the reports after the execution of automation tests, since all the current organizations are looking for detailed graphical reports."

"A disadvantage of Tricentis Tosca is that you have to customize it according to your need, during the early stages of the software, particularly during upstream testing, before system and unit testing."

"Tricentis Tosca currently does not support any mobile testing and can be improved."

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

"It can be quite expensive."

"The main area where there is room for improvement is how they do upgrades. Going through this current upgrade, we were delayed a month because we are using a third-party tool. It's called Tosca Connect by Tasktop. When this latest upgrade broke that relationship between the two, it took Tricentis a month to come back with a workable solution... Their whole upgrade process needs to be better and cleaner, from an end-user standpoint."

"The product needs to improve its pricing. It also needs to improve the infrastructure and DEX agent setup."

"There have been some setbacks because of upgrades. While Tosca has been around for a while, Tricentis has catered to smaller clients and I don't think they have done such a large, at-scale transition or transformation before or worked with a company like ours, which is doing an enterprise-wide transformation. When we go to their customer advisory-board meetings, upgrades have been an issue. They have been working a lot to make upgrades seamless."

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 tool is quite expensive."

"I give the cost of Tricentis Tosca a six out of seven."

"Expensive, but for long-term projects, it is paying back."

"The pricing is high, but altogether it offers you the ability to automate all sorts of applications: desktop, web, mobile, etc."

"Tricentis Tosca may be relatively on the higher side in terms of pricing, but their sales rep can give pretty decent deals when asked."

"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."

"Tricentis Tosca is not expensive at all."

More Tricentis Tosca pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

18%

Financial Services Firm

10%

Manufacturing Company

10%

Retailer

Computer Software Company

13%

Manufacturing Company

13%

Financial Services Firm

12%

Retailer

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

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...

See all answers

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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Compared 12% of the time

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Compared 8% of the time

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Compared 11% of the time

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Compared 10% of the time

Katalon Studio vs Tricentis Tosca

Compared 9% of the time

Testim vs Tricentis Tosca

Compared 8% of the time

UiPath Test Cloud vs Tricentis Tosca

Compared 7% of the time

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Product Reports

Buyer's Guide

Load Testing Tools

August 2025

Download k6 Open Source product report

Buyer's Guide

Tricentis Tosca

July 2025

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

July 2025

Free Report: Tricentis Tosca vs. k6 Open Source

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