What is Flask Web Framework?

Flask is a popular web framework for building web applications using Python. It is classified as a micro-framework because it provides only the essential tools to get an app up and running, without enforcing a specific project layout or requiring extra libraries. This makes Flask lightweight, flexible, and easy to use—especially for beginners and developers who want full control over their project.

Flask is built on two core components:

• Werkzeug – a WSGI utility library for routing and request handling.
• Jinja2 – a modern templating engine for rendering dynamic HTML content.

Despite its minimal core, Flask is powerful and supports extensions for things like database integration, user authentication, form handling, and more. This allows developers to scale their application as needed, from a simple single-page app to a full-featured web platform.

Flask is widely used for:

• Developing REST APIs
• Building MVPs and prototypes
• Creating dashboard or admin panels
• Learning web development in Python

Flask’s simple design, well-structured documentation, and strong community support make it a preferred choice for Python web development.