HTTP/REST Clients
Advanced REST Client
(electron)
Ling
(electron)
https://github.com/postmanlabs/postman-chrome-extension-legacy
https://github.com/chao/RESTClient
Insomnia REST Client
Postman
https://github.com/paulhitz/yet-another-rest-client
http://www.servistate.com/
https://restlet.com/modules/client/
(DHC Rest Client)
Only MAC OS
https://mmattozzi.github.io/cocoa-rest-client/