List of Free/Open-Source Computational Intelligence Software

Evolutionary Computation

JCLEC - Java Class Library for Evolutionary Computation
http://jclec.sourceforge.net/

KEEL - Knowlege Extraction based on Evolutionary Learning
http://sci2s.ugr.es/keel/

jMetal - Metaheuristic Algorithms in Java
http://jmetal.sourceforge.net/

Fuzzy Systems

Xfuzzy - Fuzzy Logic Design Tools
https://forja.rediris.es/projects/xfuzzy/

FisPro - Fuzzy Inference System Professional
https://www7.inra.fr/mia/M/fispro/fispro2013_en.html

GUAJE - Generating Understandable and Accurate fuzzy models in a Java Environment
https://www.softcomputing.es/guaje/

Neural Systems

SNNS - Stugggart Neural Network Simulator
http://www.ra.cs.uni-tuebingen.de/SNNS/

PyNN
http://neuralensemble.org/PyNN/

NEURON
https://www.neuron.yale.edu/neuron/

NEST-Initiative
http://www.nest-initiative.org/?page=Software

PCSIM
http://sourceforge.net/projects/pcsim/

The Brian Spiking Neural Network Simulator
http://briansimulator.org/

Neuro-Fuzzy

NEFCLASS - Neuro-Fuzzy Classification
http://fuzzy.cs.uni-magdeburg.de/nefclass/

FriDA - Free Intelligence Data Analysis Toolbox
http://www.borgelt.net/frida.html

KNIME
https://www.knime.org/