This python library helps you with augmenting NLP for your machine learning projects. Augmenter is the basic element of augmentation while Flow is a pipeline to orchestra multi augmenter together. Nlpaug generates synthetic data for improving model performance without manual effort. It is a simple and easy-to-use and lightweight library where you can augment data in 3 lines of code, and features plug and play to any machine leanring and neural network frameworks (e.g. scikit-learn, PyTorch, TensorFlow). Nlpaug supports textual and audio input as well.