JS Bin - Collaborative JavaScript Debugging:
simple online tool for editing and running JavaScript...
similar to: JSFiddle
JSDB: JavaScript for databases
JSDB is JavaScript for databases, a scripting language for data-driven, network-centric programming on Windows, Mac, Linux, and SunOS. JSDB works with databases, XML, the web, and email. It is free and open-source. Use it as a JavaScript shell, to run CGI programs, or as a web server.