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OpenAPI Generator VS soapUI

Compare OpenAPI Generator VS soapUI and see what are their differences

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OpenAPI Generator logo OpenAPI Generator

OpenAPI Generator enables you to generate documentation, clients, and servers from OpenAPI 2.0/3.x documents without hassle.

soapUI logo soapUI

SoapUI Pro is one of the most prominent API testing platforms around, allowing developers to quickly prototype the functions of their apps and get them to market with little hassle.
  • OpenAPI Generator Landing page
    Landing page //
    2023-03-01
  • soapUI Landing page
    Landing page //
    2023-09-16

OpenAPI Generator features and specs

  • Wide Language Support
    OpenAPI Generator supports a broad range of programming languages, which allows developers to generate client libraries, server stubs, API documentation, and other code artifacts across various languages with ease.
  • Customizability
    The tool provides diverse customization options, including custom templates, configuration options, and overrides, enabling developers to tailor the generated code to meet specific project requirements.
  • Active Community
    OpenAPI Generator benefits from an active and engaged community that contributes to continuous improvements, bug fixes, and enhancements, ensuring the tool stays updated with evolving needs and standards.
  • Comprehensive Documentation
    It comes with extensive documentation and a rich set of resources that help users understand how to leverage the tool effectively for their projects.
  • Time-Efficiency
    Automating the generation of API-related code significantly reduces development time and effort, allowing teams to focus on implementing business logic rather than boilerplate code.

Possible disadvantages of OpenAPI Generator

  • Complexity
    Although powerful, OpenAPI Generator can be complex to configure and use effectively, especially for newcomers unfamiliar with OpenAPI specifications and generation nuances.
  • Generated Code Quality
    While the tool generates a significant amount of code, the quality of the generated code might not always match hand-crafted solutions, potentially requiring manual refinements and adjustments.
  • Heavy Dependency
    Relying on a code generator creates a dependency on the tool, which may complicate upgrades over time, especially if custom templates or configurations are heavily used.
  • Learning Curve
    There is a learning curve associated with understanding the OpenAPI specification and how to effectively use the generator, particularly for complex APIs and integrations.
  • Maintenance Overhead
    Keeping up with new releases and ensuring compatibility with updated OpenAPI standards can introduce additional maintenance overhead for teams using the tool extensively.

soapUI features and specs

  • Comprehensive Testing
    soapUI supports a wide range of testing types including functional, security, and load testing, providing a one-stop solution for API testing needs.
  • User-Friendly Interface
    The tool features an intuitive graphical user interface, making it accessible for users with varying levels of technical expertise.
  • Extensive Protocol Support
    soapUI supports multiple protocols like SOAP, REST, JMS, AMF, as well as a range of underlying technologies including HTTP, HTTPS, JMS, etc., offering flexibility in testing different kinds of APIs.
  • Scripting Capability
    With Groovy scripting support, users can create custom assertions, automation scripts, and add advanced logic to their tests.
  • Community and Documentation
    A large community of users and extensive documentation and tutorials are available, aiding in faster troubleshooting and learning.
  • Integrations
    soapUI integrates well with other tools such as Jenkins, Maven, and JIRA, streamlining the CI/CD pipeline.
  • Open Source Version
    The availability of an open-source version allows users to start testing without any initial cost.

Possible disadvantages of soapUI

  • Performance Issues
    soapUI can become slow, especially with large and complex projects, which can affect productivity.
  • High Memory Usage
    The application often consumes a significant amount of memory, leading to potential performance degradation on less powerful machines.
  • Steep Learning Curve for Advanced Features
    While the basic features are user-friendly, mastering advanced functionalities and scripting capabilities can be challenging for beginners.
  • Limited Advanced Reporting
    The reporting capabilities in the open-source version are quite basic compared to other commercial API testing tools.
  • Paid Licensing for Pro Features
    Many advanced features and more efficient workflows are locked behind the paid 'Pro' version, which might not be affordable for smaller teams or individual developers.
  • UI Glitches
    Users occasionally report glitches and bugs in the graphical user interface, which can be inconvenient and interrupt workflow.
  • Lack of Cloud Deployment
    As of now, soapUI does not offer a cloud-native or SaaS version, limiting flexibility for teams that prefer cloud-based tools.

Analysis of soapUI

Overall verdict

  • Overall, SoapUI is considered a good tool for API testing, particularly for those looking for an all-in-one solution. Its extensive feature set and flexibility in handling different test scenarios make it a reliable choice in the industry. However, users should be aware of its potentially steep learning curve and resource-intensive nature, especially with large test suites.

Why this product is good

  • SoapUI is widely regarded as a robust tool for API testing due to its comprehensive set of features, including functional testing, security testing, and load testing capabilities. It offers a user-friendly interface that allows both technical and non-technical users to create and execute tests with ease. Furthermore, SoapUI supports multiple protocols such as SOAP, REST, JMS, and HTTP, making it versatile for various testing scenarios.

Recommended for

    SoapUI is recommended for QA engineers, developers, and testers who need a powerful tool to test APIs thoroughly. It is suitable for organizations that require detailed and comprehensive API testing solutions and are looking for a tool that can integrate with their DevOps processes. Additionally, teams using multiple API protocols will benefit from SoapUI's versatility.

OpenAPI Generator videos

+ Add

Introducing OpenAPI Generator

More videos:

  • Review - Scaling the Test Coverage of OpenAPI Generator for 30+ Programming Languages - William Cheng

soapUI videos

+ Add

REST API Automation - SoapUI OpenSource Review - Mac

More videos:

  • Review - Testing REST API with SoapUI OpenSource - Part 6 - Assertions - Mac
  • Review - SoapUI Certification : Basic details about certification

Category Popularity

0-100% (relative to OpenAPI Generator and soapUI)

OpenAPI Generator

soapUI

Development
100 100%
Development
0% 0
Website Testing
0 0%
Website Testing
100% 100
Developer Tools
100 100%
Developer Tools
0% 0
Software Testing
0 0%
Software Testing
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare OpenAPI Generator and soapUI

OpenAPI Generator Reviews

We have no reviews of OpenAPI Generator yet.
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soapUI Reviews

Top 20 Open Source & Cloud Free Postman Alternatives (2024 Updated)
Product Introduction: SoapUI is a robust tool for testing SOAP and REST APIs, known for its extensive testing capabilities, including functional, load, and security testing, which makes it the perfect postman alternative.
Source: medium.com
Best Postman Alternatives To Consider in 2025
This open-source tool caters specifically to SOAP and RESTful web services. SoapUI excels in security testing, with features like load testing and functional testing. While not as beginner friendly as Postman, SoapUI offers a comprehensive solution for more complex API testing needs.
Source: www.hypertest.co
Postman Alternatives for API Testing and Monitoring
SoapUI is a popular open-source and commercial API testing tool (the commercial is called ReadyAPI), due to its powerful capabilities, flexibility and user-friendly platform. It’s particularly effective for testing SOAP, REST and GraphQL APIs. SoapUI allows inputting the WSDL or endpoint URL, configuring the requests with headers, parameters, or body content and sending the...
Source: www.blazemeter.com
15 Best Postman Alternatives for Automated API Testing [2022 Updated]
SoapUI provides security and load testing features, and its functional testing supports SOAP and REST API. Users can use SoapUI’s drag-and-drop or point-and-click for scripting features, creating and running automated regression, compliance, and load tests on Web API.
Source: testsigma.com
15 BEST SoapUI Alternatives (2022 Update)
SoapUI is a widely popular API testing tool. It allows you to test REST and SOAP protocols. It facilitates seamless integrations and reusability of scripts. However, load and workflow testing is difficult with SoapUI.
Source: www.guru99.com

Social recommendations and mentions

Based on our record, OpenAPI Generator seems to be more popular. It has been mentiond 45 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

OpenAPI Generator mentions (45)

  • Stop Advertising in Your Commits
    To be fair I've never used Laravel - but I do have a memory of code generators/scaffolders inserting files that made clear they were responsible for work /* * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech). * Do not edit the class manually. */. - Source: Hacker News / 3 months ago
  • From Swagger UI to React: Building qcontroller's Frontend
    For the REST API communication, I leveraged OpenAPI Generator to automatically generate TypeScript client code. This API-first approach eliminates the common frontend-backend synchronization problems and ensures type safety across the entire stack. - Source: dev.to / 8 months ago
  • How and Why to Use Patches
    Patches are also useful if we're making manual modifications to any codebase that is being auto-generated, i.e. If we're using openapi-generator off of an OpenAPI spec to create clients and scaffolded server codebases. We would want to maintain the patch as a way to ensure that subsequent re-generations of the code don't wipe out any manual changes we have to make in-between. - Source: dev.to / about 1 year ago
  • Using OpenAPI to Automate API Integration With Rapyd's Payment Gateway
    Manually writing API clients can be time-consuming and result in errors. This is where the OpenAPI specification and tools like OpenAPI Generator are helpful. - Source: dev.to / over 1 year ago
  • Define, Generate, and Implement: An API-First Approach with OpenAPI Generator and FlightPHP
    With your API defined, use the OpenAPI Generator to generate your code automatically. The PHP Flight generator — documented here — was provided by the author and, although its status is still marked as "experimental", it has been my production workhorse for over a year. - Source: dev.to / over 1 year ago
View more

soapUI mentions (0)

We have not tracked any mentions of soapUI yet. Tracking of soapUI recommendations started around Mar 2021.

What are some alternatives?

When comparing OpenAPI Generator and soapUI, you can also consider the following products

Widdershins - Widdershins is an open-source, easy to use Semoasa/ OpenAPI/ AsyncAPI/ definition to ReSlate/Slate compatible markdown released under the MIT License.

Sauce Labs - Test mobile or web apps instantly across 700+ browser/OS/device platform combinations - without infrastructure setup.

API Transformer - API Transformer is a powerful solution that enables you to Transform API specifications to any format.

Postman - The Collaboration Platform for API Development

API Spec Converter - API Spec Converter is an open-source solution that enables you to transform API descriptions between major formats like WADL, OpenAPI (fka Swagger), API Blueprint, RAML, and more.

TestComplete - TestComplete Desktop, Web, and Mobile helps you create repeatable and accurate automated tests across multiple devices, platforms, and environments easily and quickly.

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