Best SoapUI Alternatives

We Tried 10 Best SoapUI Alternatives  [In-Depth Comparison 2024]

Quick List of 10 Alternatives to SoapUI

  1. Postman
  2. Insomnia
  3. Katalon
  4. Testsigma
  5. TestGrid
  6. Cypress
  7. Apigee
  8. Karate
  9. Apache JMeter
  10. REST-assured

Reasons to Consider an Alternative to SoapUI

SoapUI is an open-source tool for performing tests for SOAP and REST APIs. The reason why it gained popularity is that it allows users to perform functional tests, load tests, and security tests for API with ease.

However, many users are tempted to look for alternatives as the tool comes with drawbacks. They are as follows:

  • Complexity: Since SoapUI is packed with numerous features, the tool may appear cumbersome to beginners. It might take some time for them to learn about those features. Alongside that, the test results aren’t well-structured, so they can be difficult to read.
  • Not cloud-based: Unlike most API testing tools, SoapUI isn’t cloud-based, so teams don’t have the opportunity to collaborate in the cloud. Since the tool is stored locally, it requires regular maintenance, which can be a hassle.
  • Lack of integrations: Being an open-source tool, SoapUI currently doesn’t have any native SDLC integrations, However, its pro version called, ReadyAPI offers integration with Jenkins, TeamCity, and Azure DevOps.
  • Greater memory consumption: According to many users, SoapUI tends to consume plenty of memory. It happens even if the application isn’t being used, but running in the background.

Brief Overview of the 10 Alternatives We Will be Comparing

As you have seen the drawbacks of SoapUI, you probably want to try out its alternative. Luckily, we have done the research and selected these tools that will make API testing more efficient.

Most of these alternatives are cloud-based and have an intuitive interface suited for beginners and professionals alike. Some even can do more than just API testing (like web and mobile), so you can perform different kinds of tests from a single place. Not to mention it saves time.

Comparison Chart Of Top 5 SoapUI Competitor


  Applications under test

Supported platforms

  Supported languages




  Windows, Mac, Linux

  C, C#, cURL, Dart, Go, HTTP, Java, Javascript, NodeJS, Objective-C, OCaml, PHP, PowerShell, Python, R, Ruby, Shell, Swift

  API automation, API monitoring, API observability, API security, API testing, API visualization, APM, CI/CD, Collaboration, Documentation, Gateway, Git, Incident response, Open specification, Storage, Workflows


  Windows, Mac, Linux

  Curl, NodeJS, Swift, Go, Python, Java, C, Rust


  Web, Desktop, Mobile, API

  Windows, Mac, Linux, Android, iOS

  Groovy, Java

 Cloud device, ALM, CI/CD, Migration tool, Framework, Visual-based testing, automation tool, test distribution

  Web, Mobile, API

  Windows, Mac, Linux

  Python, Java, C#

CI/CD, Bug tracking, collaboration, product management, test labs

  Web, Mobile, API

Android, iOS

  Java, Javascript, PHP, Python, Ruby, C#, Perl

  CI/CD, bug tracking, test case management, product management

Top 5 SoapUI Alternatives 


Postman Dashboard

One of the most popular and easy-to-use tools for testing API is Postman. It is a cloud-based platform that offers plenty of tools needed during the lifecycle of your API.

With Postman, you can design API specifications, create documentation, monitor API performance, and do a lot more. Not to mention, there are separate workspaces where you can work privately, publicly, with a partner, or with a team.

The benefits of using Postman seem to be endless based on the many positive reviews given by its users. Users appreciate the simplicity of the platform, as it allows them to navigate and perform tasks, like running the same API calls and integrating tools with ease.

Not only that but also users find Postman to be of great help because it allows them to export and share JSON files.

Lastly, the platform has a huge community ready to help you out should you ever face issues.

About Postman:

  • The founders of Postman are Abhinav Asthana, Ankit Sobti, Abhijit Kane
  • The current CEO is Abhinav Asthana
  • The head office is located in San Francisco, California
  • Founded in 2012
  • Comprises over 1700 employees

Key Features:

Cloud-based API repository: The API repository allows users to store and manage API resources easily.

Cloud-based API repository

Multiple workspaces: Postman allows users to choose a specific workspace suited to their requirements. You can either work privately, publicly, with a team, or with a partner.

postman multiple workspaces

Comprehensive set of tools: The platform features a variety of tools for API testing, detection, monitoring, and much more.

Reporting: The reporting dashboard allows users to learn the status of the API with respect to its lifecycle. It also gives an idea about the actions that need to be taken to improve operational management.

postman integrations

Integrations: Postman has over 30 integrations, which include API automation, API security, and CI/CD tools.

postman g2 capterra

Ratings and reviews: G2 (4.6 / 1,035 reviews), Capterra (4.7 / 432 reviews)

SoapUI VS Postman: Is SoapUI Better than Postman?

One of the main differences between SoapUI and Postman is while SoapUI is a local application, Postman is cloud-based. That means users don’t have the opportunity to store files and collaborate in the cloud with SoapUI.

Moreover, Postman has a comprehensive set of tools for testing, mocking, debugging, and monitoring API. It also allows the creation of API documentation in different formats and supports a wide range of integrations, including Jenkins and CircleCI.

On the other hand, SoapUI is only capable of testing and mocking API. Its user interface isn’t as well-structured as Postman’s, so beginners are likely to spend some time getting familiar with it.

Considering what both platforms have to offer, Postman is the clear winner.


  • Intuitive interface makes it easy for beginners
  • Various integrations available
  • API collections can be saved and shared
  • Allows codeless API testing
  • It has a huge community for support


  • The search engine needs improvement
  • In the free plan, the shared API collection can be changed by anyone


postman pricing

Try Postman

Our Review on Postman:

Postman is overall a great tool for API testing. Its simple infrastructure with the addition of useful tools enables developers to perform tasks quickly. Even beginners won’t find it a hassle as they can test APIs without writing any code.

Postman alternatives for API testing

2. Insomnia

insomnia dashboard

As its name suggests, Insomnia eliminates a developer’s insomnia caused by the burdens of API testing. This open-source platform is designed to let you build APIs without compromising on quality.

Firstly, the tool has a user-friendly interface, which is something all developers look forward to. It permits the designing, testing, and debugging of APIs with ease.

Secondly, you can easily send requests without writing code, which is an absolute relief for non-technical users. Besides, you can import and export data, organize requests, collaborate remotely with team members, and do much more! When sharing API collections between devices, you can rest assured they remain encrypted, as Insomnia prioritizes security.

Insomnia supports all the major protocols, including SOAP, REST, and GraphQL. It is also capable of generating code snippets for multiple programming languages, such as NodeJS and Python for faster development.

Since the platform is open-source, there are numerous plugins to try out for a streamlined workflow.

About Insomnia:

  • The founder of Postman is Gregory Schier
  • The current CEO is Augusto Marietti
  • The head office is located in San Francisco, California
  • Founded in 2015
  • Comprises over 500 employees

Key Features

API Designing: Insomnia features a specification editor that allows you to design your APIs. When designing, you won’t have to switch between windows because you can preview changes in the same window. The tool also ensures your design remains consistent as it is equipped with linting.

insomnia api testing

Functional API testing: Insomnia has a comprehensive test suite that enables the validation of APIs, testing of functionality, and complex authentication.

insomnia code snippet

Code snippet generation: Instead of spending hours writing code, you can make use of Insomnia’s code snippet generation functionality.

insomnia integration

Integrations: Insomnia’s CLI tool seamlessly integrates with CI/CD pipeline for automated testing.

insomnia g2 rating

Rating and reviews: G2 (4.9 / 4 reviews), no Capterra reviews.

SoapUI VS Insomnia: Is SoapUI Better than Insomnia?

Two things that are common between SoapUI and Insomnia are that both are open-source tools and support codeless testing. While Insomnia is cloud-based, SoapUI isn’t. Being a cloud-based platform, Insomnia gives you the advantage of creating and sharing projects on different devices for your convenience.

However, Insomnia lacks a few features that are present in SoapUI: load testing, security testing, API mocking, and monitoring. But, it does permit API designing, debugging, and integration with CI/CD pipeline which SoapUI doesn’t.

So, is SoapUI better than Insomnia? The question can be best answered by users in regard to the functionalities they’re looking for.


  • It has a user-friendly interface
  • Generation of code snippets saves time
  • Allows organization of API requests
  • The theme can be customized for comfortable viewing
  • Offers an affordable pricing plan


  • Lacks API monitoring functionality


insomnia pricing

Try Insomnia

Our Review on Insomnia:

Although there’s not much information known about Insomnia, the platform does offer useful functionalities for business growth. From designing API documentation to sharing the project with team members, Insomnia has got you covered.

However, it would have been better if Insomnia could add a few more functionalities, such as load testing, monitoring, and reporting of APIs.

Competitors Tot Insomnia

3. Katalon

katalon dashboard

A tool that gained recognition because of its utmost flexibility is Katalon. Other than API testing, developers can use it to test websites, desktops, mobiles, as well as user interfaces.

Among the tools mentioned in this list, Katalon is the only product that covers testing on a broader scale. Its infrastructure is based on AI and machine learning, so users can test their digital products efficiently. Additionally, it permits low-code testing, which is undoubtedly an advantage for beginners.

The feature that most Katalon users appreciate is record-and-playback. It’s an in-built recorder that records all the locators of web objects for you to view their detailed properties. Not only that but also you can reuse the locators across projects to save time.

Lastly, Katalon integrates with a range of CI/CD tools for faster marketing of your digital products.

About Katalon:

  • The founders of Katalon are Vu Lam and Uy Tran
  • The current CEO is Vu Lam
  • The head office is located in Atlanta, Georgia
  • Founded in 2016
  • Comprises over 200 employees

Key Features

Record-and-playback: During test execution, you can record all the actions and play the video to spot any inconsistencies. It is also possible to view the properties of web objects involved in the process.

Reusable test artifacts: Katalon helps save time by letting you reuse test case artifacts across teams and projects.

Advanced debugger: With Katalon, you can easily debug your scripts. Instead of running the entire script for debugging, you have the option of running the script from a specific instance.

Self-healing: Sometimes the default locator in an automation script fails to find an element. To prevent the cessation of test execution, alternative locators are used.

Katalon Advanced reporting

Advanced reporting: You will get to view the full details of each test case. It includes screenshots, videos, and accessibility artifacts to help you learn about the issues.

Low-code: Katalon offers keyword-driven testing so that its users can focus more on the functionality of their applications.

katalon integration

Integrations: Katalon supports a total of 50 tools for different functions.

katalon g2 capterra rating

Rating and reviews: G2 (4.3 / 44 reviews), Capterra (4.4 / 703 reviews)

SoapUI VS Katalon: Is SoapUI Better than Katalon?

SoapUI is designed for testing APIs only whereas Katalon is used for testing websites, desktops, mobiles, and APIs. Besides that, Katalon offers codeless testing, advanced reporting, test case debugging, and a wide set of integrations, which SoapUI doesn’t.

Moreover, Katalon is an AI and machine learning-based platform, so it offers efficiency when running tests. It also has a user-friendly interface as most users claimed.

However, unlike SoapUI, Katalon doesn’t offer security testing, load testing, and API mocking. If you’re looking for these features as mentioned earlier, you might want to stick to SoapUI. But, if you want to focus on efficiency then Katalon will be the best bet.


  • Offers codeless test automation
  • Contains a wide range of integrations
  • Supports different operating systems
  • Installation is straightforward
  • Provides advanced test analytics


  • Some users claimed that the tool crashes all of a sudden
  • Supports only a single scripting language


katalon pricing

Try Katalon

Our Review on Katalon:

Katalon offers easy installation and testing, which is a great advantage for those having no prior experience. Most importantly, it offers an all-in-one testing solution, therefore reducing the hassle of using a different tool for a specific device.

Top Katalon Competitors

4. Testsigma

testsigma dashboard

Another testing tool that offers versatility is Testsigma. Other than testing your APIs, you can leverage this tool to test mobile and web applications.

What developers look for is a tool that allows them to reduce development time, and Testsigma is one of those. It enables straightforward installation as well as creation of test scripts without writing code. Not only that but you can also conduct parameterized tests to accelerate the development process.

The best feature of Testsigma is its ability to capture user actions for you to create test steps. When you’re interacting with web elements, such as entering login details, Testsigma will show every step in detail.

Moreover, if you encounter a failed test, Testsigma will suggest a list of possible solutions to help you achieve a successful outcome.

For maximum efficiency, the platform integrates with CI/CD, bug tracking, and collaboration tools as well as test lab accounts.

About Testsigma:

  • The founders of Testsigma are Rukmangada Kandyala and Pratheep Velicherla
  • The current CEO is Rukmangada Kandyala
  • The head office is located in San Francisco, California
  • Founded in 2019
  • Comprises of 100 employees

Key Features

testsigma Codeless testing

Codeless testing: Testsigma enables codeless testing by recording user actions or letting you write scripts in NLP language.

testsigma crossbrowser  testing

Cross-browser testing: For testing web applications, there are more than 3000 browsers and devices available on the cloud.

AI-driven maintenance: In the case of failed tests, Testsigma uses AI to suggest possible solutions. It also automatically repairs the dynamic elements in your test script whenever there’s a code change.

testsigma AI draven

Interactive debugging: Testsigma allows you to debug scripts in real time using screenshots, videos, and text logs.

testsigma integration 18

Integrations: Katalon seamlessly integrates with over 20 tools.

testsigma capterra g2 rating

Rating and reviews: G2 (4.5 / 21 reviews), Capterra (4.4 / 14 reviews)

SoapUI VS Testsigma: Is SoapUI Better than Testsigma?

Both SoapUI and Testsigma have a few similarities. They are open-source and allow codeless API testing. However, the latter can do more than just testing APIs- web and mobile testing.

Let’s compare both platforms in regard to API testing for now. Unlike Testsigma, the user interface of SoapUI seems somewhat outdated and complex. Also, Testsigma uses AI to facilitate the software development process, such as suggesting methods for successful tests, and repairing web elements, whereas SoapUI doesn’t.

Nonetheless, SoapUI does come with a few handy features- load testing, security testing, and API mocking, which you won’t find in Testsigma.

If you prefer the ease of use, versatility, and efficiency in a testing tool, you can’t go wrong with Testsigma.


  • Requires no programming knowledge
  • The recording feature enables easy understanding of test cases
  • Allows cross-browser testing
  • The interface is straightforward
  • Excellent support team


  • The performance of the tool needs improvement
  • It can be challenging to automate complex test cases


testsigma pricing

Try Testsigma

Our Review on Testsigma:

To conclude, Testsigma shines by implementing its AI-based features into testing, whether mobile, web, or API. The platform can be used locally or on the cloud, which is great as developers have the option of where they want to deploy their digital products.

5. TestGrid

TestGrid dashboard

TestGrid is a tool that leverages AI to perform automated tests for web, mobile, API, and even IoT. It enables both on-premise and cloud-based testing for your convenience.

With TestGrid you are free to perform nearly all kinds of tasks in a single place- API functional testing, security testing, performance testing, mocking, and many more!

Like most testing tools on this list, TestGrid reduces the hassle of writing lines of code. It allows test case automation with the help of simple keywords, which, a person having no programming knowledge can easily do it. Plus, the auto-healing feature intelligently detects any changes in the code and adapts itself to ensure functionality.

Moreover, TestGrid comes with a smart reporting feature that allows you to view rich data insights, including network logs as well as real-time visual reports. By taking a look at the detailed reports, you can resolve issues quickly.

Additionally, you can integrate your CI/CD pipeline for a seamless experience with your digital products.

About TestGrid:

  • The founder of TestGrid is Harry Rao
  • The current CEO is Harry Rao
  • The head office is located in Atlanta, Georgia
  • Founded in 2016
  • Comprises of 41 employees

Key features

Low-code/no-code testing: Beginners and professionals alike can execute tests without writing a single line of code. This saves a lot of time in the development process.

TestGrid Real device cloud

Real device cloud: Contains a range of browsers and real devices for manual and automated testing.

Reporting: TestGrid provides detailed insights, even for failed tests to help you resolve issues quickly.

Auto-healing: TestGrid uses AI to detect any changes in the code and adapts itself to ensure the application keeps running. Therefore, test cases require minimal modification.

TestGrid Integratiion

Integrations: TestGrid seamlessly integrates with CI/CD, bug tracking, and other tools.

TestGrid g2 rating

Rating and reviews: G2 (4.3 / 3 reviews), no Capterra reviews

SoapUI VS TestGrid: Is SoapUI Better than TestGrid?

When compared to SoapUI, TestGrid outshines because of its numerous features starting from automated testing to IoT testing. Nevertheless, both have a few features in common- scriptless functional testing, load testing, and API mocking.

Unlike SoapUI, TestGrid is capable of executing GUI tests. When API tests are performed with TestOS, it will let you view potential bugs for improved test coverage. Not only that but also it supports transaction monitoring, detailed reporting, and deeper assertions for your convenience. Plus, it integrates seamlessly with CI/CD and other tools.

So, which one is the best fit? If a variety of features is all you need, then you shouldn’t hesitate to pick TestGrid.


  • Codeless scripting saves time
  • Allows viewing of extensive test reports
  • Offers various types of testing
  • The platform is easy to use
  • Offers a collaborative space for different testing needs


  • Many users aren’t satisfied with customer support
  • Cloud-based testing may fail sometimes


TestGrid pricing 18

Try TestGrid

Our Review on TestGrid:

TestGrid is overall a great platform for those looking for an all-in-one solution. It incorporates AI into its infrastructure to help you attain your business goals within a short time. Also, you have the option of testing on-premise or on the cloud based on your requirement.

Frequently Asked Questions – FAQs

1. Is SoapUI similar to Postman?

SoapUI and Postman have not all but a few similarities. Both of them offer codeless testing of APIs, enable API functional tests and mocking, and support Windows, Mac, and Linux operating systems.

The major difference lies in the fact that while SoapUI is a local-based application, Postman is cloud-based. Also, Postman offers a range of functionalities, including API designing, debugging, and monitoring whereas SoapUI offers a few.

2. Is there a free version of SoapUI?

SoapUI is an open-source tool that is available for free. However, you won’t get many features in it compared to its pro version called, ReadyAPI.

3. Is SoapUI the same as ReadyAPI?

Both SoapUI and ReadyAPI fall under the same company, SmartBear. While SoapUI is a free tool for automated API tests, ReadyAPI is the paid version that boasts added features and functionalities.


So, these are the top alternatives of SoapUI as you’ve seen so far. All of them offer an intuitive interface, integration with various tools to speed up the development process, and less memory consumption.

If you want to make use of comprehensive tools for API testing, you can choose Postman. For efficient testing on different devices and operating systems, you have Katalon. Or if you want an all-in-one solution that goes beyond API testing, TestGrid is the perfect choice.

Whichever you choose depending your requirement, we hope it works well for you!

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Rahnuma Tasnim

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