Keras - Keras is a minimalist, modular neural networks library, written in Python and capable of running on top of either TensorFlow or Theano.
TFlearn - TFlearn is a modular and transparent deep learning library built on top of Tensorflow.
Clarifai - The World's AI
Microsoft Cognitive Toolkit (Formerly CNTK) - Machine Learning
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.
DeepPy - DeepPy is a MIT licensed deep learning framework that tries to add a touch of zen to deep learning as it allows for Pythonic programming.