synaptic
architecture-free neural network library
limdu
A machine learning framework for Node.js. Supports multi-level classification and online learning.
maianne
MaiaScript Neural Network Engine.
mlp
multilayer perceptron which can be trained using the backpropagation algorithm
encog
Encog is a NodeJs ES6 framework based on the Encog Machine Learning Framework by Jeff Heaton, plus some the of basic data manipulation helpers.