SIMBRAIN is a free tool for building, running, and analyzing neural-networks (computer simulations of brain circuitry). Simbrain aims to be as visual and easy-to-use as possible.
Fast Artificial Neural Network Library is a free open source neural network library, which implements multilayer artificial neural networks in C with support for both fully connected and sparsely connected networks. Cross-platform execution
S. Sapkota, A. Shakya, and B. Joshi. Proceedings of the 26th International Conference of the ORIENTAL- COCOSDA (O-COCOSDA 2023), page 1-6. IEEE, (December 2023)