A shameless plug: https://github.com/scrapinghub/splash is an open source tool similar to Phantom JS, and it has an interactive web editor built-in.
The concurrency model in Splash scripts is not the same as in Phantom JS scripts: Splash allows to use loops/ifs/functions in async code without recursion tricks or things like "casper.thenOpen". See http://splash.readthedocs.org/en/latest/scripting-tutorial.h... for more info.
We haven't done a public announcement, and Splash is not yet feature complete, but it is used in production for more than a year, there are hundreds of unit tests and it is in active (though a bit sporadic) development - so give it a try if you want something different :)
The concurrency model in Splash scripts is not the same as in Phantom JS scripts: Splash allows to use loops/ifs/functions in async code without recursion tricks or things like "casper.thenOpen". See http://splash.readthedocs.org/en/latest/scripting-tutorial.h... for more info.
We haven't done a public announcement, and Splash is not yet feature complete, but it is used in production for more than a year, there are hundreds of unit tests and it is in active (though a bit sporadic) development - so give it a try if you want something different :)
Installation is just "docker pull scrapinghub/splash" - see http://splash.readthedocs.org/en/latest/install.html.