HTTP Archive : The HTTP Archive tracks how the Web is built.
Selfspy : Selfspy is a daemon for Unix/X11 and (thanks to @ljos!) Mac OS X, that continuously monitors and stores what you are doing on your computer. This way,...
httpbin : Testing an HTTP Library can become difficult sometimes. PostBin.org is fantastic for testing POST requests, but not much else. This exists to cover al...
hurl.it : Hurl.it makes HTTP requests.
Choose the request method, customize headers and POST parameters, add basic authorization or OAuth credentials, and even ...
wrk : wrk is a modern HTTP benchmarking tool capable of generating significant load when run on a single multi-core CPU. It combines a multithreaded design ...
