Advanced REST Client (ARC) is described as 'API testing tool. Which allows web developers to create and test custom HTTP requests' and is a HTTP Client in the Development category. There are more than 50 alternatives to Advanced REST Client (ARC) for a variety of platforms, including Mac, Windows, Linux, Online / Web-based and SaaS. The best alternative is Postman, which is free. Other great apps like Advanced REST Client (ARC) are Insomnia REST Client (Freemium, Open Source), Fiddler (Freemium), Paw (Paid) and Hoppscotch (Free, Open Source).
Postman is a tool that facilitates the development and use of APIs. Postman provides all the functionality needed to create or simulate API specifications and use the Postman Collection Runner to create tests.
Fiddler is a Web Debugging Proxy which logs all HTTP(S) traffic between your computer and the Internet. Fiddler allows you to inspect all HTTP(S) traffic, set breakpoints, and "fiddle" with incoming or outgoing data.
Easily craft your HTTP requests, try them, archive them. Setup HTTP Headers, URL parameters, form-encoded POST key-values or text. Get easy-to-read responses with well formatted headers and body. Sync your projects with your team through Paw for Teams.