Postman

Pros: Postman is one of the best and my personal favourite Rest API testing tool. You can easily test your Api's and can catch the errors and can fix them on time. It saves a lot of time and comes with a very clean and handy user interface with is easy to learn and use.

Cons: There are no cons in using this product. It is easy to use and free of cost.

Overall: Overall a must tool for web developers to test their API's. And most almost every one who is in this profession uses this so it is a trusted and reliable product with can increase your work flow and save your lot of time.

Pros: Clean and pretty UI
Best for API testing
Create and Manage environments very easily
Save api response
History of fetched API's

Cons: The only Con that I found was that you cannot test SOAP api's.

Overall: Overall a very great software for web developers out there to test there backend apis so that integration with the frontend can become much more easy.

Pros: It's true, you could just send your GET/POST/PUT/DELETE requests to your server with your built-in browser dev tools or even a curl script, but POSTMAN really excels at simplifying the process by making it easy to modify your payload and repeat it with little variations.

Cons: It was a little hard for me as someone new to REST APIs to see why I needed yet another tool...but once I got over that initial reluctance to use it, everything was fine.

Overall: Superb tool for developers needing to test their APIs, or for people who need to see how their apps respond to different usernames/passwords/data payloads.

Pros: (+) Design is neat, simple and easy interface.
(+) Integration is very easy.
(+) Testing for calling API is very easy, you will easily understand the status of the broadcast.
(+) API calls are very fast.
(+) Pricing

Cons: (-) Automation capability
(-) Report generation based on task execution.
(-) Advanced features can be a bit confusing.

Overall: I have tried Postman for posting API calls once. The interface is very good. The speed is also very good, you can understand the status of your broadcast. One of the best tools for testing API calls. I would definitely recommend postman to any company as the pricing is also very friendly.