Postman and Insomnia

Desktop apps for building and sending API requests by hand.

What is Postman and Insomnia?

Postman and Insomnia are desktop apps for sending API requests by hand: pick a method, type a URL, add headers and a body, and see the response. Collections save requests to share.

Level: Apprentice · More REST API terms at this level

Updated September 27, 2026