Postman
Postman is a powerful HTTP client to test REST API
Screenshots

Description
Postman is a really useful tool if you building and testing APIs. More than 3 000 developers love that platform because it makes work so much easier, complete and accurate. It has a Postman free app for Mac, Windows and Linux, and a paid version for enterprises that can be used for monitoring, API testing and documentation.
Link
https://www.getpostman.com/?ref=steemhunt
Contributors
Hunter: @itsravi

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