In this last chapter of the book, we have seen how to create web applications using Python web frameworks and discovered the potential of web frameworks like Flask. More specifically, we have developed several web computer vision and web deep learning applications using OpenCV, Keras, and Flask and learned how to ingrate it with them to provide the web applications machine learning and deep learning capabilities. Additionally, we have also covered how to deploy a Flask application to the cloud using PythonAnywhere, which provides capabilities for web hosting. Finally, we have also seen how to perform requests (for example, GET and POST) from the browser (GET requests) and, also, programmatically (GET and POST requests) to create a web face API using OpenCV and Flask, and to create a deep learning API using OpenCV.