Head-to-head · API Testing Tools
SoapUI vs Karate
SoapUI leads on 0 checks, Karate on 0, and 7 are even. Who comes out ahead on the 7 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreSoapUI · 9.0/10
- Free planboth
SoapUI scores higher on our rubric for api testing tools: 9.0 against 8.9 out of 10; our editors rank them #3 and #4.
SoapUI is the better fit for teams testing SOAP, REST, and service performance. Karate is the better fit for engineering teams building automated API test suites.
- SoapUI fits best
Teams testing SOAP, REST, and service performance
- Karate fits best
Engineering teams building automated API test suites
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Side by side
| Feature | SoapUI 9.0/10 Visit ↗ | Karate 8.9/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.0 | 8.9 |
| Ranking | #3 in API Testing Tools | #4 in API Testing Tools |
| Best for | Teams testing SOAP, REST, and service performance | Engineering teams building automated API test suites |
| Pricing model | Free | Free plan + paid |
| Starting price | Free | $100/user/yr |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Desktop | Self-hosted, Desktop |
| Platforms | Windows, macOS, Linux | Windows, macOS, Linux |
| Support | Community, Docs | Email, Community, Docs |
| Integrations | 9 integrations | 40+ integrations |
| Built for | Solo, Small business, Mid-market, Enterprise | Small business, Mid-market, Enterprise |
| Features SoapUI 6/6 · Karate 6/6 | ||
| GraphQL support | ✓ | ✓ |
| SOAP support | ✓ | ✓ |
| Scheduled runs | ✓ | ✓ |
| CI/CD integration | ✓ | ✓ |
| Mock server | ✓ | ✓ |
| Contract testing | ✓ | ✓ |
| Specs | ||
| Included requests | Not checked yet | Not checked yet |
| Our review | ||
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| Our verdict | SoapUI is an open-source desktop API testing tool for developers and testers working with REST, SOAP, HTTP, and GraphQL services. It is suited to teams that need one application for functional, regression, interoperability, performance,… Read the review → |
Karate is an open-source test automation framework for developers and QA teams building automated suites for REST, GraphQL, and SOAP APIs. Its Gherkin-based syntax supports JSON and XML assertions, schema validation, data-driven scenarios,… Read the review → |
Strengths and trade-offs
SoapUI — where it wins
- Covers REST, SOAP, GraphQL, functional, regression, and performance testing
- Includes service mocking, contract coverage, assertions, and schema validation
- Runs locally on Windows, macOS, and Linux with command-line execution
Where it doesn't
- Desktop-focused rather than a browser-based testing platform
- Enterprise testing capabilities are provided through separate ReadyAPI products
- Groovy and JavaScript scripting may require scripting knowledge
Karate — where it wins
- Tests REST, GraphQL, and SOAP APIs with Gherkin-based authoring
- Combines mocks, contract testing, reports, and parallel execution
- Supports CI/CD, self-hosting, and Gatling performance testing
Where it doesn't
- Advanced IDE and Xplorer capabilities are split across paid tiers
- The Pro plan costs $640 per user per year
- Enterprise licensing uses custom commercial pricing
- SoapUI9.0/10 · Free plan
A broad, free API testing desktop tool for functional, contract, performance, and load work.
Visit SmartBearFull verdict → - Karate8.9/10 · Free plan
A broad, automation-focused API framework with a valuable free tier and paid tooling add-ons.
Visit KarateFull verdict →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update






