Trimaran  
   An "integrated compilation and performance monitoring infrastructure", facilitating compiler-optimization research and involves a collaborative effort by Hewlett Packard, University of Illinois and New York University.
   http://www.trimaran.org/

Stratego (Strategies for Program Transformation)  
   A modular language for the specificat ion of fully automatic program transformation systems based on the paradigm of rewriting strategies. Free software.
   http://www.stratego-language.org/twiki/bin/view/Stratego

DMS Software Reengineering Toolkit  
   Generalized compiler technology for custom parsing, analyzing, transforming, and prettyprinting computer langauges, including C, C++, COBOL, Ada, Java, C#, SQL. Tasks range from metrics to migrations. [Commercial]
   http://www.semanticdesigns.com/Products/DMS/DMSToolkit.html

TXL Source Transformation System  
   Rule-based structural transformation is utilized as a paradigm for rapid generation of complex programs.
   http://www.cs.queensu.ca/~cordy/

ProgramTransformationOrg  
   Providing a full range of information on program transformation, the site includes an online survey of the field and is updateable by visitors as featured by the concept of WikiWikiWeb.
   http://www.program-transformation.org/twiki/bin/view/Transform

Tom : A pattern matching compiler, the wiki  
   The Wiki for the Tom programming language, developped at Loria by the Protheo team.
   http://protheo.loria.fr/confluence/display/Tom/Home

Tom  
   A Pattern matching transformation system.
   http://tom.loria.fr/

Alma  
   Multi-language software workshop for modeling, analyzing. Reads several languages, and outputs. Designed for object-oriented modeling (definition of classes and relations) and for migrating (to help convert) old code in older languages. Meets 2 needs: hav
   http://www.desnoix.com/guillaume/alma/