# Introduction

## What is Foolbox?

**Foolbox** is a **Python library** that let's you easily run adversarial attacks against machine learning models like deep neural networks. It is built on top of [**EagerPy**](https://eagerpy.jonasrauber.de) and works natively with models in [**PyTorch**](https://pytorch.org), [**TensorFlow**](https://www.tensorflow.org), [**JAX**](https://github.com/google/jax), and [**NumPy**](https://numpy.org).
