SoapUI
The World's Most Popular API Testing Tool.
Overview
SoapUI is a long-standing open-source tool focused on functional testing for SOAP and REST APIs. It includes features for creating mock services, allowing developers to simulate API responses and test client applications without needing a live backend. It is the foundation for the commercial ReadyAPI product.
✨ Key Features
- Functional testing for SOAP and REST APIs
- Service mocking (SOAP and REST)
- Drag-and-drop test creation
- Scriptable tests with Groovy
- Cross-platform desktop application
🎯 Key Differentiators
- Strong, mature support for SOAP and other XML-based web services
- Large user base and community
- Desktop application with a rich GUI for test creation
Unique Value: Provides a free, comprehensive, and user-friendly desktop tool for functional testing and mocking of both SOAP and REST APIs.
🎯 Use Cases (4)
✅ Best For
- Testing enterprise SOAP services
- Creating simple mock services for REST APIs
💡 Check With Vendor
Verify these considerations match your specific requirements:
- Modern, design-first API workflows
- Cloud-native or containerized testing environments
🏆 Alternatives
While Postman is more popular for modern REST APIs, SoapUI remains a superior choice for testing complex SOAP-based web services.
💻 Platforms
✅ Offline Mode Available
🔌 Integrations
💰 Pricing
Free tier: The open-source version is completely free.
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