Jerry Mendels Type-2 Software - A collection of M-files for Matlab. Free to download. - http://sipi.usc.edu/~mendel/software/
Dataengine - DataEngine is the software tool for intelligent data analysis which unites statistical methods with neural networks and fuzzy technologies. - http://www.dataengine.de
NRC FuzzyJava Toolkit & FuzzyJess - A set of Java classes that handling and reasoning with fuzzy concepts. - http://ai.iit.nrc.ca/IR_public/fuzzy/fuzzyJavaToolkit.html
FuzzyCLIPS - An extension of the CLIPS (C Language Integrated Production System) expert system shell. Demonstration programs, user documentation, software downloads and licensing opportunities. - http://ai.iit.nrc.ca/IR_public/fuzzy/fuzzyClips/fuzzyCLIPSIndex.html
JFS - A development environment for JFL, combining features from traditional programming languages with fuzzy logic and machine learning. Freeware for Windows 95/98/NT and Linux. - http://inet.uni2.dk/~jemor/jfs.htm