Postman - The Collaboration Platform for API Development
Insomnia REST - The most intuitive cross-platform REST API Client ð´
soapUI - SoapUI Pro is one of the most prominent API testing platforms around, allowing developers to quickly prototype the functions of their apps and get them to market with little hassle.
Postwoman - An online, open source API request builder
Paw.cloud - Paw is a REST client for Mac.
NativeRest - NativeRest is a native REST API client for Windows. NativeRest desktop application is not using Electron, runs fast, uses less memory and CPU.