API (Application Programming Interface) testing has become an integral part of the software testing process. As we are end of the year 2023, the need for effective and efficient API testing tools is more crucial than ever. This article covers the top 10 API testing tools that can help your team deliver robust, high-quality software.
Postman
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Postman is a favorite among developers for API testing. Its user-friendly interface makes it easy to create and send HTML requests without writing extensive code. Postman supports both automated and exploratory testing and offers a variety of features, like test scripting and collection runner.
| Introduction Year | License | Official Link |
|---|---|---|
| 2012 | Freemium | Postman |
SoapUI
SoapUI by SmartBear is a dedicated tool for API testing. It supports comprehensive automated functional, regression, compliance, and load tests on different Web APIs, making it a versatile choice for diverse testing needs.
| Introduction Year | License | Official Link |
|---|---|---|
| 2005 | Open Source / Pro Version Available | SoapUI |
Katalon Studio
Katalon Studio is a one-stop solution for API, web, mobile, and desktop app test automation. It supports both SOAP and RESTful calls, content verification, and load testing, providing an all-round solution for API testing.
| Introduction Year | License | Official Link |
|---|---|---|
| 2015 | Freemium | Katalon Studio |
JMeter
Apache JMeter is an open-source tool initially designed for load testing but has since expanded to include API testing. It tests both static and dynamic resources, proving its adaptability in different test environments.
| Introduction Year | License | Official Link |
|---|---|---|
| 1998 | Apache License 2.0 | JMeter |
Rest-Assured
Rest-Assured is a set of powerful APIs used by Java developers to automate RESTful/HTTP services testing. Its DSL allows you to write readable, maintainable tests for various APIs.
| Introduction Year | License | Official Link |
|---|---|---|
| 2010 | Apache License 2.0 | Rest-Assured |
Paw
Paw is an HTTP client that lets you test and describe your APIs. It comes with an intuitive macOS interface to compose requests, inspect server responses, generate client code, and export API definitions.
| Introduction Year | License | Official Link |
|---|---|---|
| 2013 | Commercial | Paw |
Assertible
Assertible is a web-based automated API testing tool that excels in reliability and automation. It supports scheduling, continuous testing, and various authentication options and validation techniques.
| Introduction Year | License | Official Link |
|---|---|---|
| 2016 | Freemium | Assertible |
Free Downloads Interview Materials Apigee
Apigee, part of Google Cloud, is a full lifecycle API management platform. It enables API providers to design, secure, deploy, monitor, and scale APIs effectively.
| Introduction Year | License | Official Link |
|---|---|---|
| 2004 | Freemium | Apigee |
Karate DSL
Karate DSL is an open-source tool that combines API test-automation, mocks, and performance-testing into a single framework. It is ideal for test-cases that are sequences of HTTP calls, each having a side-effect on the server-side state.
| Introduction Year | License | Official Link |
|---|---|---|
| 2017 | MIT License | Karate DSL |
Tricentis Tosca
Tricentis Tosca’s API testing approach uses model-based test automation, making script maintenance easy and efficient. It supports a wide array of protocols including HTTP(s) JMS, AMQP, Rabbit MQ, TIBCO EMS, SOAP, REST, and IBM MQ.
| Introduction Year | License | Official Link |
|---|---|---|
| 2007 | Commercial | Tricentis Tosca |
Choosing the right API testing tool can significantly impact your software’s quality. Each of these tools brings unique features and benefits to the table. Evaluate your team’s needs and expertise before deciding on the best fit. Stay tuned to our blog for more insights and trends in the world of API testing in 2023.
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