Helma is an Open Source Web Application Framework and server-side Javascript environment for fast and efficient scripting and serving of your websites and Internet applications.

Helma is written in Java and employs Javascript for its server-side scripting environment, removing the need for compilation cycles and reducing development costs while giving you instant access to leverage the whole wealth of Java libraries out there.

Helma can serve multiple independent applications, each accessible through a different mountpoint, using Javascript environments running in their own global scope, and configurable to use separate code repositories.

Website: http://dev.helma.org/