Software

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

Neuromat - Model Manager for development of bayesian neural networks.
http://www.neuromat.com

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/

Temporal Difference Learning Project - Java sources for temporal difference learning Random Walk and Tic Tac Toe.
http://www.geocities.com/chen_levkovich/tdlearningproject.html

Pythia - Software for simulation of back propagation neural networks. Evaluation version available.
http://www.runtime.org/pythia.htm

Java library - Open source Java implementation of feed-forward neural nets: multi-layer perceptrons, generalized and modular feed-forward networks.
http://aydingurel.brinkster.net/neural

NeuroShell Predictor - Forecasting and estimation software based on neural networks. Demo version available.
http://www.mbaware.com/neurpred.html

Annie - Open-source neural network library for C++ (Windows and Linux). Support for MLP, RBF and Hopfield networks. Interfaces with Matlab's Neural Network Toolbox.
http://annie.sourceforge.net

Joone - Java Object Oriented Neural Engine is a free java neural net framework. Can be extended writing new modules.
http://www.jooneworld.com

Tradecision - Neural network software for technical analysis and stock market trading. Demo is available.
http://www.tradecision.com/

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/

Neural Networks at your Fingertips - Neural network simulators for eight different network architectures with embedded example applications coded in portable ANSI C.
http://www.neural-networks-at-your-fingertips.com/

LTF-Cimulator - LTF-C neural networks simulator for solving classification problems.
http://rainbow.mimuw.edu.pl/~mwojnar/ltfcim/

Neuropilot Project - Showcases a java applet demo of a trained neural network piloting a lunar-lander type spacecraft over landscapes of various complexity.
http://freespace.virgin.net/michael.fairbank/neuropilot/

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/

Simbrain - A free java-based neural network simulation kit.
http://simbrain.sourceforge.net

NeuroSolutions - Icon-based neural network development software. Supports several types of networks and training algorithms. Trial version is available.
http://www.neurosolutions.com

Cortex - A back propagation neural network application.
http://cortex.snowcron.com

Fann Neural Network for Mathematica - Free interactive environment for Mathematica includes pattern recognition and time-series prediction samples.
http://www.geocities.com/freegoldbar/

libF2N2 - An open source neural network library. Implements feedforward neural network classes in multiple languages including C++ and PHP.
http://libf2n2.sourceforge.net/

Neurak - A freeware environment for development and application of artificial neural networks.
http://www.gameroom.com/quaternions/

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

Artificial Intelligence Recurrent Asymmetric Networks (NARIA) - Open project about simulating human-like intelligence with the help of neural networks.
http://naria.karasuma.net

ECANSE - Provides a development environment for the design, simulation and testing of neural networks and their applications up to the production of an optimized software solution.
http://www.siemens.at/ecanse/

NeuroBox - An opensource .NET OOP library project written in C# to generate, propagate and train complex neural feedforward networks.
http://www.cdrnet.net/projects/neuro/

NeuralWorks - Professional II/PLUS is a 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

Lightweight Neural Network++ - Free software project. Implements a general feed forward neural network and some training techniques.
http://lwneuralnetplus.sourceforge.net/

NeuroMine - Neural network COM+ components and development environment for forecasting and data analysis. Supports several algorithms. Trial version is available.
http://www.neuromine.com/

EasyNN - Neural network software for Windows with numeric, text and image functions.
http://www.easynn.com

Stuttgart Neural Network Simulator - Description of the features of the Unix and X11 based simulator, information about how to obtain the SNNS sources and an online user manual.
http://www-ra.informatik.uni-tuebingen.de/SNNS/

Penguinwerks - Open source neural network library to create multi-layer perceptrons. Written in C#.
http://www.penguinwerks.com

NeuroXL - MS Excel add-ins based on neural networks. Designed for predicting, classification and financial forecasting.
http://www.neuroxl.com

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

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

Genesis - A platform for simulating complex neural systems.
http://www.genesis-sim.org/GENESIS/

Neural Network Framework - Class framework to create neural networks with arbitrary topology and mixed type of neurons, developed for research purpose. Includes technical information and discussion mailing-list.
http://www.nnfw.org

Alyuda NeuroIntelligence - Neural network software and Excel add-ins for forecasting and data analysis. Supports several algorithms. Trial versions are available.
http://www.alyuda.com/

FANN - Neural network library implemented in ANSI C. Creates multilayer feedforward networks with support for both fully connected and sparse connected networks. Supports execution in fixed point, for fast execution on systems like the iPAQ.
http://fann.sourceforge.net

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

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/

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

NetMaker - Simulates MLP, RMLP and Cascade-Correlation models with dynamic size adjustment algorithms. Includes various training patterns, error and activation functions.
http://www.ire.pw.edu.pl/%7ersulej/NetMaker/