SpaCy library is pretty awesome.
NLP progress - Track the progress in Natural Language Processing (NLP) and give an overview of the state-of-the-art across the most common NLP tasks and their corresponding datasets.
Natural - General natural language facilities for Node.
PyText - Natural language modeling framework based on PyTorch.
FlashText - Extract Keywords from sentence or Replace keywords in sentences.
LASER Language-Agnostic SEntence Representations - Library to calculate and use multilingual sentence embeddings.
Project DeepSpeech - Open source Speech-To-Text engine, using a model trained by machine learning techniques, based on Baidu's Deep Speech research paper.
StanfordNLP - Python NLP Library for Many Human Languages.
nlp-tutorial - Tutorial for who is studying NLP(Natural Language Processing) using TensorFlow and PyTorch.
gpt-2 - Code for the paper "Language Models are Unsupervised Multitask Learners".
Lingvo - Framework for building neural networks in Tensorflow, particularly sequence models.
Fairseq - Facebook AI Research Sequence-to-Sequence Toolkit written in Python.