Katalon Studio alternatives: 5 apps ranked by verified data
Common reasons people leave Katalon Studio: expensive per-seat paid plans, and heavy for simple request testing. We ranked 5 alternatives by how directly each one replaces Katalon Studio, then by reviews, real visits and how recently each app's facts were checked against its own website. SoapUI currently ranks first.
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Show all 5 alternativesThe best Katalon Studio alternative for…
The highest-ranked app in this list for each need.
Best Katalon Studio alternative for most people
SoapUIFree, open-source API functional testing for REST and SOAP.
Best Katalon Studio alternative for a free option
KarateOpen-source framework for API, UI and performance tests in one syntax.
Best Katalon Studio alternative for a free plan you can upgrade
ApidogAPI-focused design, testing and mocking at a lower cost.
Best Katalon Studio alternative for open source
HurlLightweight plain-text API tests for CI pipelines.
Best Katalon Studio alternative for self-hosting
ApidogAPI-focused design, testing and mocking at a lower cost.
Best Katalon Studio alternative for Mac
PostmanEasier API testing with collections, monitors and team workspaces.
Best Katalon Studio alternative for Windows
SoapUIFree, open-source API functional testing for REST and SOAP.
Best Katalon Studio alternative for Linux
SoapUIFree, open-source API functional testing for REST and SOAP.
Best Katalon Studio alternative for working in the browser
ApidogAPI-focused design, testing and mocking at a lower cost.
Katalon Studio alternatives: common questions
What is the best alternative to Katalon Studio?
SoapUI ranks first right now. Free, open-source API functional testing for REST and SOAP. Karate and Apidog follow it in our ranking.
Is there a free alternative to Katalon Studio?
Yes. SoapUI (open source), Karate (open source), Apidog (free plan + paid) and Hurl (open source) have a free option. Check each app's verified facts for current plan limits.
Is there an open-source alternative to Katalon Studio?
Yes: SoapUI, Karate and Hurl.
Which Katalon Studio alternatives work on Linux?
SoapUI, Karate, Apidog, Hurl and Postman run on Linux.
Why do people switch from Katalon Studio?
The complaints we hear most: expensive per-seat paid plans; heavy for simple request testing; free version limited to one local user.
How is this list ranked?
Every app is scored with the same published formula: how directly it replaces Katalon Studio, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.