(2014) The sublexical morphophonological learner [web application]. With Blake Allen (UBC). Available at sublexical.phonologist.org.
(2010) Experigen: an online experiment platform. With Jonathan Levine. Available at becker.phonologist.org/experigen.
(2007) LexLearn: a learner of irregular phonology using constraint cloning and OT-CC. Pre-release version available upon request.
(2005) CCamelOT: an implementation of OT-CC's GEN and EVAL in Perl. http://becker.phonologist.org/CCamelOT/
Other useful things
(2010) Living Lexicon of Hebrew Nouns. With Shmuel Bolozky.