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Alternatives to SoapUI

Research overview

10 alternatives

  1. 1API testing and debugging

    Postman

    API Testing Platforms

    Both SoapUI and Postman are API testing and debugging tools supporting REST, SOAP, and other protocols. SoapUI emphasizes open source accessibility and load testing, while Postman focuses on team collaboration and modern API workflows. They serve similar core testing jobs but with different feature emphasis and pricing models.

    Free planFree trialSOC 2ISO 27001GDPRHIPAA
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    Vendor sources: soapui.org [1]postman.com [2]

    Last verified
  2. 2Load testing and performance testing

    Loadster

    Load Testing

    Both SoapUI and Loadster provide load testing capabilities to measure API and application performance under load. SoapUI includes load testing as one feature among many, while Loadster specializes in comprehensive load testing and synthetic monitoring.

    Free planFree trialUsage-basedAPI Testing PlatformsSynthetic Monitoring

    Price$199+ / month

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    Vendor sources: soapui.org [1]loadster.app [2]

    Last verified
  3. 3API Testing Tools, API Testing Platforms

    Hoppscotch

    API Testing Tools

    Hoppscotch is an open-source API development platform providing a fast, lightweight alternative to Postman for testing REST, GraphQL, WebSocket, and MQTT APIs.

    Graphql API testing with query builder and schema explorerMcp server integration for AI agent access

    Price$6 / user / month

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  4. 4API Testing Tools, Test Automation Frameworks

    Karate Labs

    Test Automation Frameworks

    Open source API testing framework combining test automation with API mocks and performance.

    Rest API testingGraphql API testingAsync protocol testing
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  5. 5API Testing Tools, API Mocking

    HTTP Toolkit

    API Testing Tools

    Open source tool for debugging, testing, and building with HTTP and HTTPS traffic interception.

    Http traffic interceptionRequest and response inspectionTraffic filtering and search

    Price$10+ / month

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  6. 6API Testing Tools, Test Automation Frameworks

    Keploy

    API Testing Tools

    Open-source testing toolkit auto-generating test cases from API traffic for fast regression testing.

    Free planFree trialSOC 2GDPRHIPAAISO 27001
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  7. 7API Testing Tools, API Mocking

    Wiretap

    API Testing Tools

    Open-source OpenAPI-aware HTTP proxy for validating API requests and responses against schemas in real time.

    API mocking and mock response generationRequest and response inspectionOpenapi and asyncapi support
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  8. 8API Testing Tools, API Testing Platforms

    Schemathesis

    API Testing Platforms

    Property-based API testing tool that automatically generates test cases from OpenAPI and GraphQL specifications.

    Free planDynamic Application Security TestingTest Automation Frameworks
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  9. 9API Testing Tools, API Testing Platforms

    Pact

    Contract Testing

    Open source contract testing framework ensuring microservices communicate correctly by verifying API interactions between consumers and providers.

    Consumer driven contract testingMulti language supportPact broker for contract management
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  10. 10API Testing Tools, API Mocking

    Microcks

    API Mocking

    Open source Kubernetes-native tool for mocking and testing APIs and microservices from OpenAPI and AsyncAPI specs.

    Multi protocol API mockingContract testing
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