RESTed - RESTed allows developers to quickly format and make HTTP requests and view the response.
Postman - The Collaboration Platform for API Development
Advanced REST Client (ARC) - API testing tool. Which allows web developers to create and test custom HTTP requests.
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.
Hoppscotch - Open source API development ecosystem