Postman is a tool that allows developers to efficiently work with Application Programming Interfaces (APIs). It includes a comprehensive set of tools that accelerate the API lifecycle – from design, testing, documenting, and mocking to the sharing and discoverability of your APIs. Postman simplifies each step of the API lifecycle and streamlines collaboration so you can create better APIs – faster.

Postman allows you to easily store, catalog, and collaborate around all your API artifacts in one central platform. Postman stores and manages API specifications, documentation, workflow recipes, test cases and results, metrics, and everything else related to APIs.

You can either use Postman on the web or download a native client for your computer. Using this tool is a convenience, but there are many options for testing API requests.