A simple browser based repl for nodejs, it has not been built for scaliblity. It could easily be extended but its just a proof of concept at this phase. There is still a ways to go before this word be usable, but it could be a good platform for some interesting testing tools.
git clone https://github.com/justengland/the-flying-dutchman.git
npm install phantomjs -g
npm install
npm start
The just launch your browser to and go to http://localhost:3000/