Flask is another highly-popular Python framework, yet it offers a different approach to Django. In fact, instead of enforcing dependencies or project layouts, Flask offers suggestions. Ultimately, you, as the developer, have the ability to choose the tools and libraries you want to use in your projects and applications.

Flask is a micro web framework written in Python. It is classified as a microframework because it does not require particular tools or libraries. It has no database abstraction layer, form validation, or any other components where pre-existing third-party libraries provide common functions.