Postman is an API development tool which helps to build, test and modify APIs. Almost any functionality that could be needed by any developer is encapsulated in this tool. Postman chrome is deprecated so you need to install its native apps.
Step Install Postman Mac
Step 1: Navigate to this site
Step 2: It will automatically detect your operating system. Click on Download and wait for download to finish.
Step 3: Once download is finished. Go to Downloads folder and unzip the file.
Step 4: Open the downloaded file.
Step 5: Click on Open if you get "Postman is an app downloaded from the internet. Are you sure you want to open it."
Step 6: Click on move to application folder
Step 7: Click on OK if you get Postman would like to access files in your downloaded folder.
It's installed you can start using it.