HTTP Archive : The HTTP Archive tracks how the Web is built.
Pact : Fast, easy and reliable testing for integrating web apps, APIs and microservices. Pact is a code-first tool for testing HTTP and message integrations ...
HttpWatch : An HTTP Viewer and HTTP Sniffer for IE and Firefox
httpbin.org : A simple HTTP Request & Response Service.
Smocker : Smocker (server mock) is a simple and efficient HTTP mock server. Smocker exposes a configuration user interface and a configuration api to register n...