hp2url is a small helper for the httpipe format. It takes httpipe via standard input and prints the correlating URL for each line to standard output.
This is useful if you want to want to investigate httpipe output further, using your browser, curl, or other tools that don't work with httpipe. Keep in mind that the HTTP method, headers and payload will be absent in a URL.
$ echo '{"host":"test.com","req":"GET /foo HTTP/1.1\\r\\nHost: test.com\\r\\n\\r\\n"}' | hp2url
https://test.com/foo
$ echo "foo\nbar\nbaz" | pfuzz -w - -u "http://test.com:1234/FUZZ" | hp2url
http://test.com:1234/foo
http://test.com:1234/bar
http://test.com:1234/baz
$ # Open extracted URLs in your browser:
$ pfuzz -u "http://test.com" | hp2url | xargs firefox