Postman Vs Rest Assured

Postman and Rest Assured are two popular tools used for API testing. In this article, we’ll compare Postman and Rest Assured to help you decide which tool is best suited for your testing needs.


Postman is an API testing tool that allows users to create and send API requests, manage collections, and automate tests. It has a user-friendly interface that makes it easy for users to create requests, set headers, and test responses. Postman also supports automation through scripts and integrations with other tools.

Some of the advantages of using Postman include

  • User-friendly interface: Postman has a clean and easy-to-use interface, making it accessible to both technical and non-technical users.
  • Collaboration: Postman allows users to easily share their API testing collections with their team members, making it easier to collaborate on testing.
  • Automation: Postman supports automation through scripts and integrations with other tools such as Newman.

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Rest Assured

Rest Assured is a Java-based library used for testing REST APIs. It allows users to create automated tests for REST APIs using a simple and readable syntax. Rest Assured can be used with different test frameworks such as JUnit and TestNG.

Some of the advantages of using Rest Assured include

  • Strong Java support: Rest Assured is built in Java and can be easily integrated with other Java-based testing frameworks.
  • Powerful testing capabilities: Rest Assured has powerful testing capabilities such as validation of response data, checking response status codes, and testing response time.
  • Lightweight: Rest Assured is a lightweight library, making it easy to integrate with other tools.

Comparison Table

Criteria Postman Rest Assured
User-friendly interface ✔️
API testing ✔️ ✔️
Automation ✔️ ✔️
Java support ✔️
Response validation ✔️ ✔️
Price Free, with paid plans available for additional features Free and open-source

Postman and Rest Assured are both powerful tools for API testing. Postman is a more user-friendly tool that allows users to create and test APIs, while Rest Assured is a Java-based library that provides powerful testing capabilities for REST APIs. Ultimately, the best tool for your needs will depend on your specific requirements and preferences.

If you need a tool for testing APIs with a user-friendly interface, Postman is a good choice. If you are a Java developer and want to integrate your API testing with your existing Java-based test framework, Rest Assured may be a better choice. Both tools support automation and response validation, making them suitable for different types of API testing scenarios.

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