• Bean Language for using Java for expressions
• Constant
• the unified EL from JSP and JSF
• Header
• JSonPath
• JXPath
• Mvel
• OGNL
• Ref Language
• ExchangeProperty / Property
• Scripting Languages such as
  • BeanShell
  • JavaScript
  • Groovy
  • Python
  • PHP
  • Ruby
• Simple
  • File Language
• Spring Expression Language
• SQL
• Tokenizer
• XPath
• XQuery
• VTD-XML

Most of these languages is also supported used as Annotation Based Expression Language.