Postman - The Collaboration Platform for API Development
Servistate - Send HTTP Requests - Inspect Response. - Measure Performance. - Organize Better. -
Insomnia REST - The most intuitive cross-platform REST API Client ð´
RESTer - A REST client for almost any web service (Firefox and Chrome extension).
Postman Workspaces - Organize and speed up API development work
Hoppscotch - Open source API development ecosystem