TensorFlow - TensorFlow is an open-source machine learning framework designed and published by Google. It tracks data flow graphs over time. Nodes in the data flow graphs represent machine learning algorithms. Read more about TensorFlow.
Keras - Keras is a minimalist, modular neural networks library, written in Python and capable of running on top of either TensorFlow or Theano.
Floyd - Heroku for deep learning
OpenCV - OpenCV is the world's biggest computer vision library
Deeplearning4j - Deeplearning4j is an open-source, distributed deep-learning library written for Java and Scala.
Scikit-learn - scikit-learn (formerly scikits.learn) is an open source machine learning library for the Python programming language.