Postman, Insomnia REST Client, soapUI, HTTP Toolkit, Requestly, ApiOpenStudio, Graphical HTTP Client, Thunder Client, Milkman, Insomnium, Apibucket.io, Advanced REST Client, Runscope, NativeRest, HttpRequester, Restfox, REST Client for Android, RESTed, Nozomi, HttpMaster, Resting, Iron Test, Assertible, rest-client, Restlet, JunoRestClient, WebMaestro, TestMace, Bearer, RESTtest, GraphicalHttpClient, CurlHub.io, Droptice, FRequest are some alternatives to Hoppscotch.