Django is an open-source web framework written in Python. It is designed to make the development process of web applications easier and faster. It is used to create complex, database-driven websites.
For example, a Django project may include a web application that allows users to create accounts, post blog entries, and upload files. The project will also include a database to store user data, a web server to serve the application, and a template system to create the HTML pages. All of these components are managed by Django, making it easy to create a complex web application quickly.