StresStimulus vs k6 Open Source comparison

k6 and Stimulus Technology are both solutions in the Load Testing Tools category. k6 is ranked #9 with an average rating of 7.5, while Stimulus Technology is ranked #7 with an average rating of 8.5. k6 holds a 3.9% mindshare in LTT, compared to Stimulus Technology’s 1.5% mindshare. Additionally, 100% of k6 users are willing to recommend the solution, compared to 100% of Stimulus Technology users who would recommend it.

k6 Open Source

Read 2 k6 Open Source reviews

524 Views
383 Comparison Views

100% willing to recommend

StresStimulus

Read 3 StresStimulus reviews

452 Views
160 Comparison Views

100% willing to recommend

k6 Open Source

StresStimulus

Comparison Buyer's Guide

Download the report

Executive SummaryUpdated on Jan 6, 2025

k6 Open Source and StresStimulus both compete in the load testing category. Based on the feature set and specific needs, either tool might stand out, with StresStimulus often having the upper hand due to its advanced features for more intricate testing needs.

Features: k6 Open Source provides a scriptable interface, performs efficiently in cloud-native environments, and integrates with developer ecosystems. StresStimulus offers detailed reporting, robust test scenarios for complex applications, and a broad feature set suitable for intricate tasks.

Ease of Deployment and Customer Service: k6 Open Source focuses on simplicity with community support and is developer-friendly, whereas StresStimulus has a more guided setup for non-developers with extensive customer support.

Pricing and ROI: k6 Open Source is free, making it cost-effective for those managing projects and seeking high ROI with budget constraints. StresStimulus requires a financial investment but delivers significant value for projects needing detailed insights and tailored support.

To learn more, read our detailed StresStimulus vs. k6 Open Source Report (Updated: April 2025).

Buyer's Guide

StresStimulus vs. k6 Open Source

April 2025

Download the complete report

Helped 850,028 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

k6 Open Source

Ranking in Load Testing Tools

9th

Average Rating

7.6

Reviews Sentiment

7.9

Number of Reviews

Ranking in other categories

Regression Testing Tools (10th)

StresStimulus

Ranking in Load Testing Tools

7th

Average Rating

8.0

Reviews Sentiment

7.9

Number of Reviews

Ranking in other categories

Performance Testing Tools (8th)

Mindshare comparison

As of May 2025, in the Load Testing Tools category, the mindshare of k6 Open Source is 3.9%, up from 1.2% compared to the previous year. The mindshare of StresStimulus is 1.5%, up from 0.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Load 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.

Read full review

Shiju Chandran

Manager - Performance & Site Reliability at AssureCare LLC

Good performance testing, simple UI, and the ability to run the same script across different domains

StresStimulus simulates browser HTTP calls. I would love to see where it can also simulate a real browser to measure visually complete time. For example, to be something similar to TruClient. We run tests on SQL statements and stored procedures directly, even before integrating with UI. I wish there were a way to connect to my application DB and run SQL queries using a JDBC connection. In a world where the applications are changing every day, I hope StresStimulus comes up with an option to compare HTTP requests before and after deployment and tell me what requests have changed. This would help avoid rescripting every time, and this would be a huge deal.

Read full review

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."

"Designed to be a modern testing tool, StresStimulus made it easy for us to upgrade from an older deprecated testing tool and adapt to Agile DevOps testing principles by shifting left with performance testing."

"Technical support is great."

"Compared to other tools, there is not a whole lot to Stress Stimulus UI. This makes it easy to use, be it while scripting, executing, or having to train someone new to the team."

Cons

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

"Result analysis (snap-out tabs for side-by-side comparisons) need improvement."

"StresStimulus has a dedicated blog where users of the tool can log new feature requests or enhancements to existing features."

"We run tests on SQL statements and stored procedures directly, even before integrating with UI. I wish there were a way to connect to my application DB and run SQL queries using a JDBC connection."

See which vendors are best for you

Use our free recommendation engine to learn which Load Testing Tools solutions are best for your needs.

See recommendations

850,028 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Computer Software Company

21%

Financial Services Firm

11%

Manufacturing Company

10%

Media Company

Financial Services Firm

21%

Manufacturing Company

18%

Computer Software Company

11%

Hospitality Company

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

Ask a question

Earn 20 points

Comparisons

Tricentis NeoLoad vs k6 Open Source

Compared 52% of the time

Apache JMeter vs k6 Open Source

Compared 14% of the time

BlazeMeter vs k6 Open Source

Compared 14% of the time

Selenium HQ 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

Apache JMeter vs StresStimulus

Compared 68% of the time

OpenText LoadRunner Professional vs StresStimulus

Compared 16% of the time

Tricentis NeoLoad vs StresStimulus

Compared 16% of the time

More StresStimulus Competitors

Product Reports

Buyer's Guide

Load Testing Tools

March 2025

Download k6 Open Source product report

Buyer's Guide

StresStimulus

April 2025

Download StresStimulus 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.

StresStimulus is a load testing tool for websites, mobile and Enterprise apps. It determines the web performance and scalability of your application under the rigors of heavy traffic load. Hundreds or thousands of physical users are realistically emulated through on-premise load generators or in a cloud testing environment

Stimulus Technology

Sample Customers

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

Information Not Available

Buyer's Guide

StresStimulus vs. k6 Open Source

April 2025

Free Report: StresStimulus vs. k6 Open Source

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

DOWNLOAD NOW

850,028 professionals have used our research since 2012.

See our StresStimulus vs. k6 Open Source report.

See our list of best Load Testing Tools vendors.

We monitor all Load Testing Tools reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.