A really trivial websocket client for debugging and testing.

git clone http://github.com/athanclark/ws

Then depending on your build system:

stack install

or

cabal install

It should work with either, but if you run into issues, don't hesitate to file an issue.

ws ws://echo.websocket.org/

ws://echo.websocket.org/> test
test
ws://echo.websocket.org/> ayoo
ayoo