Domino Perl , e.g. Catalyst , Dancer (all open source) PHP (open source) Python , e.g. Django (web framework) (open source) Real Studio Web Edition Ruby , e.g. Ruby on Rails (open source) Smalltalk e.g. Seaside , AIDA/Web SSJS Server-Side JavaScript, e.g. Aptana Jaxer, Mozilla Rhino WebDNA (WSC proprietary) Websphere (IBM