In the realm of API testing, Postman is widely regarded as a comprehensive and user-friendly tool. However, there are several other tools available that might be considered superior based on specific needs and preferences.
SoapUI: For those who frequently work with SOAP as well as RESTful services, SoapUI offers a more robust feature set, particularly in terms of security, mock services, and load testing. It’s often favored in enterprise environments that require extensive support for advanced features.
Insomnia: Known for its simple and intuitive interface, Insomnia is a great choice for developers who prioritize ease-of-use and a streamlined workflow. It also supports GraphQL out of the box, which is a bonus for those working in that ecosystem.
Paw: Specifically designed for macOS, Paw offers a more native experience for Mac users along with powerful debugging capabilities. It also provides visualizations and a detailed breakdown of requests and responses, which can be a significant advantage.
Katalon Studio: This tool is renowned for its comprehensive suite that covers various types of testing, including web and mobile applications. Its automation capabilities are often praised, making it suitable for those who need an all-encompassing tool.
TestMace: Offers a comfortable environment for creating API requests, debugging, and project collaboration. It also provides features like linking requests and running collections with both manual and automatic test execution capabilities.

Ultimately, the choice of whether a tool is “better” than Postman depends heavily on what features are most important to the user. Different projects and organizational needs can significantly influence this decision. It’s often useful for teams to try out a few of these tools to determine which aligns best with their requirements.