OT-Help
OT-Help (Becker, Pater & Potts 2007) is a free open-source Java-based program that aids research in Optimality Theory (OT, Prince and Smolensky 1993/2004) and its cousin, Harmonic Grammar (HG, Smolensky and Legendre 2006). OT-Help will find a constraint ranking or weighting consistent with the data provided by the user, if one exists. The solution can be displayed either in a standard tableau format, or as a comparative tableau (Prince 2002a). OT-Help will also find the set of possible languages in both OT and HG, given the user's set of constraints. Typology can also be explored interactively by selecting different sets of optima.
The current version of OT-Help can be found at: http://web.linguist.umass.edu/~OTHelp/
Part of the grant project involves making improvements and extensions to the software. Stay tuned for future developments!
CCamelOT
Michael Becker's implementation of Optimality Theory With Candidate Chains (OT-CC)'s GEN and EVAL in Perl. To use it, go to http://wwwx.oit.umass.edu/~linguist/CCamelOT/