Neural network software and Excel add-ins for forecasting and data analysis. Supports several algorithms. Trial versions are available.

Open-source software for simulating spiking neural networks, written in C++.

Open project about simulating human-like intelligence with the help of neural networks.

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

A back propagation neural network application.

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.

An open source neural network library. Implements feedforward neural network classes in multiple languages including C++ and PHP.

Java open source neural network framework which can be used to create and train common types of neural networks. Site contains full source code, documentation and project info.

A standard environment for evaluating the performance of learning methods. Includes a number of datasets and an archive of learning methods.

Neural network simulator based on C and Tcl. Made up of C libraries to build networks, and pre-built simulators.