Postman - The Collaboration Platform for API Development
Requester - HTTP client plugin for Sublime Text with an expansive feature set, modern UX, elegant syntax and...
Insomnia REST - The most intuitive cross-platform REST API Client ð´
Postwoman - An online, open source API request builder
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.
Paw.cloud - Paw is a REST client for Mac.