NNSYSID Toolbox A set of MATLAB tools for neural network based identification of nonlinear dynamic systems. http://kalman.iau.dtu.dk/research/control/nnsysid.html

Netlab A library of MATLAB functions for simulating neural network algorithms based on the book Neural Networks for Pattern Recognition by Chris Bishop. http://www.ncrg.aston.ac.uk/netlab/

Neural Network Toolbox for MATLAB An environment for neural network research, design, and simulation within MATLAB. http://www.mathworks.com/products/neuralnet/

Xerion Neural network simulator based on C and Tcl. Made up of C libraries to build networks, and pre-built simulators. http://www.cs.toronto.edu/~xerion/

DELVE A standard environment for evaluating the performance of learning methods. Includes a number of datasets and an archive of learning methods. http://www.cs.toronto.edu/~delve/

Stuttgart Neural Network Simulator A simulation environment for research on applications of neural networks. Written in C and has an X based GUI. http://www.informatik.uni-stuttgart.de/ipvr/bv/projekte/snns/snns.html

PDP++ A neural-network simulation system based on C++. This is the next generation of the PDP software originally released with McClelland and Rumelhart's PDP book. http://www.cnbc.cmu.edu/PDP++/PDP++.html

MATLAB Neural Network Toolbox Tutorial A tutorial on how to construct custom neural networks starting from an empty network object. http://carol.wins.uva.nl/~portegie/matlab/nnt/

Neu Net Work An open-source project with the goal to make fast neural networks based on new ideas. http://nnw.sourceforge.net

Tom-ato's OCR Showcases a java applet designed to recognize hand printed digits using a neural network. Digits can be drawn using the mouse and recognized by the applet in the browser. http://www.thomastannahill.com/tom-ato/toc2.html

Tiberius Neural network for classification and regression problems. Supports ODBC and Excel. http://www.philbrierley.com

Torch A library of state-of-the-art machine learning algorithms. Licensed under the GPL, and designed for Unix and Linux environments. http://www.torch.ch

Neural Network Leaves Recognition A neural network based system to recognize leaves written in Java. A Java-Applet is also available. http://damato.light-speed.de/lrecog/

NeuralWorks Professional II/PLUS is a comprehensive neural network development environment. Available for Windows and Unix. Predict is a neural network tool for solving prediction and classification problems. Available for Unix or as an Excel add-in for Windows. http://www.neuralware.com/products.jsp

Neural Network Models in Excel Neural network freeware for building prediction and classification models in Excel. Uses backpropagation. Can handle missing values and categorical data. http://www.geocities.com/adotsaha/NNinExcel.html

Cortex A back propagation neural network application. http://cortex.snowseed.com/cortex.htm

NuRho Java backpropagation neural network simulator. Supports wizard-based GUI and performance monitoring charts. http://www.sonit.biz/NuRho/NuRho/nurho.html

Amygdala Open-source software for simulating spiking neural networks, written in C++. http://amygdala.sourceforge.net/

The Neural Simulation Language A simulation system for modeling large-scale general neural networks. http://www.neuralsimulationlanguage.org

RiniNet An open source library implementing artificial neural networks. http://rinisoft.web1000.com/rininnlib/