Postman
Postman is a popular API development and testing tool that provides a user-friendly interface for creating, sending, and testing API requests. It's available as a desktop app, web app, and Chrome extension.

Pros

User-friendly interface: Easy to learn and use, even for non-technical users. 

Visual API design: Allows for creating and managing API collections and environments. 

Request building: Supports various HTTP methods, headers, body parameters, and authentication mechanisms. 

Response validation: Can validate responses against predefined schemas or assertions. 

Collaboration: Enables team collaboration through shared collections and workspaces. 

Integration: Integrates with version control systems, CI/CD pipelines, and other tools.

Cons

Primarily a GUI tool: May not be ideal for complex scripting or automation tasks. 

Limited scripting capabilities: While it supports scripting, it’s less powerful than dedicated programming languages. 

Can be resource-intensive: For large-scale API testing, it might consume more resources than command-line tools.

Benefits

  • Great for beginners and non-technical users

  • Suitable for ad-hoc API testing and exploration

  • Can be used for API documentation and sharing