Get the Load Testing Tools Buyer's Guide and find out what your peers are saying about k6 Open Source, Katalon Studio, Apache JMeter and more!
k6 Open Source is the #7 ranked solution in top Load Testing Tools and #10 ranked solution in top Regression Testing Tools. PeerSpot users give k6 Open Source an average rating of 7.6 out of 10. k6 Open Source is most commonly compared to Katalon Studio:
k6 Open Source vs Katalon Studio. k6 Open Source is popular among the large enterprise segment,
accounting for 53% of users researching this solution on PeerSpot. The top industry researching this solution are professionals from a
computer software company, accounting for 20% of all views.
As of July 2025, the mindshare of k6 Open Source in the Load Testing Tools category
stands at 3.8%, up from 1.9% compared to the previous year, according to calculations based on PeerSpot user engagement data.
Load Testing Tools
Key learnings from peers
Valuable Features
"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."
Room for Improvement
"One area where k6 could improve is by introducing a GUI similar to JMeter."
These insights are based on the in-depth reviews provided by peers to help you make a better buying decision.
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.
k6 Open Source was previously known as Load Impact.
