Pretty much any new language has an online interpreter these days, so you can try it without even having to install anything. For future reference, I collected all the links here: Clojure http://tryclj.licenser.net/ Scala http://www.simplyscala.com/ Python http://try-python.mired.org/ (or http://trypython.org , but that one needs Silverlight) Ruby http://tryruby.org/ Go http://golang.org/ Erlang http://www.tryerlang.org/ Groovy http://groovyconsole.appspot.com/ Lua http://www.lua.org/demo.html […]