SoapUI alternatives: 6 apps ranked by verified data
Common reasons people leave SoapUI: dated, heavy Java interface, and steep learning curve. We ranked 6 alternatives by how directly each one replaces SoapUI, then by reviews, real visits and how recently each app's facts were checked against its own website. Karate currently ranks first.
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Show all 6 alternativesThe best SoapUI alternative for…
The highest-ranked app in this list for each need.
Best SoapUI alternative for most people
KarateOpen-source API test automation with readable scripts and parallel runs.
Best SoapUI alternative for a free option
InsomniaA lighter desktop client with good SOAP-free REST and GraphQL support.
Best SoapUI alternative for a free plan you can upgrade
Katalon StudioCodeless and scripted testing across API, web and mobile.
Best SoapUI alternative for self-hosting
ApidogVisual test scenarios, mocks and docs in one modern tool.
Best SoapUI alternative for Mac
PostmanA friendlier interface for REST testing with team collaboration.
Best SoapUI alternative for Windows
KarateOpen-source API test automation with readable scripts and parallel runs.
Best SoapUI alternative for Linux
KarateOpen-source API test automation with readable scripts and parallel runs.
Best SoapUI alternative for working in the browser
PostmanA friendlier interface for REST testing with team collaboration.
SoapUI alternatives: common questions
What is the best alternative to SoapUI?
Karate ranks first right now. Open-source API test automation with readable scripts and parallel runs. Katalon Studio and Postman follow it in our ranking.
Is there a free alternative to SoapUI?
Yes. Karate (open source), Katalon Studio (free plan + paid), Postman (free plan + paid) and Insomnia (open source) have a free option. Check each app's verified facts for current plan limits.
Is there an open-source alternative to SoapUI?
Yes: Karate, Insomnia and Hurl.
Which SoapUI alternatives work on Linux?
Karate, Katalon Studio, Postman, Insomnia and Apidog run on Linux.
Why do people switch from SoapUI?
The complaints we hear most: dated, heavy Java interface; steep learning curve; many conveniences are only in paid ReadyAPI.
How is this list ranked?
Every app is scored with the same published formula: how directly it replaces SoapUI, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.